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1 | # -*- coding: iso-8859-1 -*- |
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1 | # -*- coding: iso-8859-1 -*- | |
2 |
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2 | |||
3 | """ |
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3 | """ | |
4 | ``ipipe`` provides classes to be used in an interactive Python session. Doing a |
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4 | ``ipipe`` provides classes to be used in an interactive Python session. Doing a | |
5 | ``from ipipe import *`` is the preferred way to do this. The name of all |
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5 | ``from ipipe import *`` is the preferred way to do this. The name of all | |
6 | objects imported this way starts with ``i`` to minimize collisions. |
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6 | objects imported this way starts with ``i`` to minimize collisions. | |
7 |
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7 | |||
8 | ``ipipe`` supports "pipeline expressions", which is something resembling Unix |
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8 | ``ipipe`` supports "pipeline expressions", which is something resembling Unix | |
9 | pipes. An example is: |
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9 | pipes. An example is: | |
10 |
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10 | |||
11 | >>> ienv | isort("key.lower()") |
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11 | >>> ienv | isort("key.lower()") | |
12 |
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12 | |||
13 | This gives a listing of all environment variables sorted by name. |
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13 | This gives a listing of all environment variables sorted by name. | |
14 |
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14 | |||
15 |
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15 | |||
16 | There are three types of objects in a pipeline expression: |
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16 | There are three types of objects in a pipeline expression: | |
17 |
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17 | |||
18 | * ``Table``s: These objects produce items. Examples are ``ls`` (listing the |
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18 | * ``Table``s: These objects produce items. Examples are ``ls`` (listing the | |
19 | current directory, ``ienv`` (listing environment variables), ``ipwd`` (listing |
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19 | current directory, ``ienv`` (listing environment variables), ``ipwd`` (listing | |
20 | user account) and ``igrp`` (listing user groups). A ``Table`` must be the |
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20 | user account) and ``igrp`` (listing user groups). A ``Table`` must be the | |
21 | first object in a pipe expression. |
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21 | first object in a pipe expression. | |
22 |
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22 | |||
23 | * ``Pipe``s: These objects sit in the middle of a pipe expression. They |
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23 | * ``Pipe``s: These objects sit in the middle of a pipe expression. They | |
24 | transform the input in some way (e.g. filtering or sorting it). Examples are: |
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24 | transform the input in some way (e.g. filtering or sorting it). Examples are: | |
25 | ``ifilter`` (which filters the input pipe), ``isort`` (which sorts the input |
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25 | ``ifilter`` (which filters the input pipe), ``isort`` (which sorts the input | |
26 | pipe) and ``ieval`` (which evaluates a function or expression for each object |
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26 | pipe) and ``ieval`` (which evaluates a function or expression for each object | |
27 | in the input pipe). |
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27 | in the input pipe). | |
28 |
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28 | |||
29 | * ``Display``s: These objects can be put as the last object in a pipeline |
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29 | * ``Display``s: These objects can be put as the last object in a pipeline | |
30 | expression. There are responsible for displaying the result of the pipeline |
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30 | expression. There are responsible for displaying the result of the pipeline | |
31 | expression. If a pipeline expression doesn't end in a display object a default |
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31 | expression. If a pipeline expression doesn't end in a display object a default | |
32 | display objects will be used. One example is ``browse`` which is a ``curses`` |
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32 | display objects will be used. One example is ``browse`` which is a ``curses`` | |
33 | based browser. |
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33 | based browser. | |
34 |
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34 | |||
35 |
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35 | |||
36 | Adding support for pipeline expressions to your own objects can be done through |
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36 | Adding support for pipeline expressions to your own objects can be done through | |
37 | three extensions points (all of them optional): |
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37 | three extensions points (all of them optional): | |
38 |
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38 | |||
39 | * An object that will be displayed as a row by a ``Display`` object should |
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39 | * An object that will be displayed as a row by a ``Display`` object should | |
40 | implement the method ``__xattrs__(self, mode)``. This method must return a |
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40 | implement the method ``__xattrs__(self, mode)``. This method must return a | |
41 | sequence of attribute names. This sequence may also contain integers, which |
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41 | sequence of attribute names. This sequence may also contain integers, which | |
42 | will be treated as sequence indizes. Also supported is ``None``, which uses |
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42 | will be treated as sequence indizes. Also supported is ``None``, which uses | |
43 | the object itself and callables which will be called with the object as the |
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43 | the object itself and callables which will be called with the object as the | |
44 | an argument. If ``__xattrs__()`` isn't implemented ``(None,)`` will be used as |
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44 | an argument. If ``__xattrs__()`` isn't implemented ``(None,)`` will be used as | |
45 | the attribute sequence (i.e. the object itself (it's ``repr()`` format) will |
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45 | the attribute sequence (i.e. the object itself (it's ``repr()`` format) will | |
46 | be being displayed. The global function ``xattrs()`` implements this |
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46 | be being displayed. The global function ``xattrs()`` implements this | |
47 | functionality. |
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47 | functionality. | |
48 |
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48 | |||
49 | * When an object ``foo`` is displayed in the header, footer or table cell of the |
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49 | * When an object ``foo`` is displayed in the header, footer or table cell of the | |
50 | browser ``foo.__xrepr__(mode)`` is called. Mode can be ``"header"`` or |
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50 | browser ``foo.__xrepr__(mode)`` is called. Mode can be ``"header"`` or | |
51 | ``"footer"`` for the header or footer line and ``"cell"`` for a table cell. |
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51 | ``"footer"`` for the header or footer line and ``"cell"`` for a table cell. | |
52 | ``__xrepr__()```must return an iterable (e.g. by being a generator) which |
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52 | ``__xrepr__()```must return an iterable (e.g. by being a generator) which | |
53 | produces the following items: The first item should be a tuple containing |
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53 | produces the following items: The first item should be a tuple containing | |
54 | the alignment (-1 left aligned, 0 centered and 1 right aligned) and whether |
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54 | the alignment (-1 left aligned, 0 centered and 1 right aligned) and whether | |
55 | the complete output must be displayed or if the browser is allowed to stop |
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55 | the complete output must be displayed or if the browser is allowed to stop | |
56 | output after enough text has been produced (e.g. a syntax highlighted text |
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56 | output after enough text has been produced (e.g. a syntax highlighted text | |
57 | line would use ``True``, but for a large data structure (i.e. a nested list, |
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57 | line would use ``True``, but for a large data structure (i.e. a nested list, | |
58 | tuple or dictionary) ``False`` would be used). The other output ``__xrepr__()`` |
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58 | tuple or dictionary) ``False`` would be used). The other output ``__xrepr__()`` | |
59 | may produce is tuples of ``Style```objects and text (which contain the text |
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59 | may produce is tuples of ``Style```objects and text (which contain the text | |
60 | representation of the object; see the ``astyle`` module). If ``__xrepr__()`` |
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60 | representation of the object; see the ``astyle`` module). If ``__xrepr__()`` | |
61 | recursively outputs a data structure the function ``xrepr(object, mode)`` can |
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61 | recursively outputs a data structure the function ``xrepr(object, mode)`` can | |
62 | be used and ``"default"`` must be passed as the mode in these calls. This in |
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62 | be used and ``"default"`` must be passed as the mode in these calls. This in | |
63 | turn calls the ``__xrepr__()`` method on ``object`` (or uses ``repr(object)`` |
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63 | turn calls the ``__xrepr__()`` method on ``object`` (or uses ``repr(object)`` | |
64 | as the string representation if ``__xrepr__()`` doesn't exist). |
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64 | as the string representation if ``__xrepr__()`` doesn't exist). | |
65 |
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65 | |||
66 | * Objects that can be iterated by ``Pipe``s must implement the method |
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66 | * Objects that can be iterated by ``Pipe``s must implement the method | |
67 | ``__xiter__(self, mode)``. ``mode`` can take the following values: |
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67 | ``__xiter__(self, mode)``. ``mode`` can take the following values: | |
68 |
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68 | |||
69 | - ``"default"``: This is the default value and ist always used by pipeline |
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69 | - ``"default"``: This is the default value and ist always used by pipeline | |
70 | expressions. Other values are only used in the browser. |
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70 | expressions. Other values are only used in the browser. | |
71 | - ``None``: This value is passed by the browser. The object must return an |
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71 | - ``None``: This value is passed by the browser. The object must return an | |
72 | iterable of ``XMode`` objects describing all modes supported by the object. |
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72 | iterable of ``XMode`` objects describing all modes supported by the object. | |
73 | (This should never include ``"default"`` or ``None``). |
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73 | (This should never include ``"default"`` or ``None``). | |
74 | - Any other value that the object supports. |
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74 | - Any other value that the object supports. | |
75 |
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75 | |||
76 | The global function ``xiter()`` can be called to get such an iterator. If |
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76 | The global function ``xiter()`` can be called to get such an iterator. If | |
77 | the method ``_xiter__`` isn't implemented, ``xiter()`` falls back to |
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77 | the method ``_xiter__`` isn't implemented, ``xiter()`` falls back to | |
78 | ``__iter__``. In addition to that, dictionaries and modules receive special |
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78 | ``__iter__``. In addition to that, dictionaries and modules receive special | |
79 | treatment (returning an iterator over ``(key, value)`` pairs). This makes it |
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79 | treatment (returning an iterator over ``(key, value)`` pairs). This makes it | |
80 | possible to use dictionaries and modules in pipeline expressions, for example: |
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80 | possible to use dictionaries and modules in pipeline expressions, for example: | |
81 |
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81 | |||
82 | >>> import sys |
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82 | >>> import sys | |
83 | >>> sys | ifilter("isinstance(value, int)") | idump |
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83 | >>> sys | ifilter("isinstance(value, int)") | idump | |
84 | key |value |
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84 | key |value | |
85 | api_version| 1012 |
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85 | api_version| 1012 | |
86 | dllhandle | 503316480 |
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86 | dllhandle | 503316480 | |
87 | hexversion | 33817328 |
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87 | hexversion | 33817328 | |
88 | maxint |2147483647 |
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88 | maxint |2147483647 | |
89 | maxunicode | 65535 |
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89 | maxunicode | 65535 | |
90 | >>> sys.modules | ifilter("_.value is not None") | isort("_.key.lower()") |
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90 | >>> sys.modules | ifilter("_.value is not None") | isort("_.key.lower()") | |
91 | ... |
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91 | ... | |
92 |
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92 | |||
93 | Note: The expression strings passed to ``ifilter()`` and ``isort()`` can |
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93 | Note: The expression strings passed to ``ifilter()`` and ``isort()`` can | |
94 | refer to the object to be filtered or sorted via the variable ``_`` and to any |
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94 | refer to the object to be filtered or sorted via the variable ``_`` and to any | |
95 | of the attributes of the object, i.e.: |
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95 | of the attributes of the object, i.e.: | |
96 |
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96 | |||
97 | >>> sys.modules | ifilter("_.value is not None") | isort("_.key.lower()") |
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97 | >>> sys.modules | ifilter("_.value is not None") | isort("_.key.lower()") | |
98 |
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98 | |||
99 | does the same as |
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99 | does the same as | |
100 |
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100 | |||
101 | >>> sys.modules | ifilter("value is not None") | isort("key.lower()") |
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101 | >>> sys.modules | ifilter("value is not None") | isort("key.lower()") | |
102 |
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102 | |||
103 | In addition to expression strings, it's possible to pass callables (taking |
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103 | In addition to expression strings, it's possible to pass callables (taking | |
104 | the object as an argument) to ``ifilter()``, ``isort()`` and ``ieval()``: |
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104 | the object as an argument) to ``ifilter()``, ``isort()`` and ``ieval()``: | |
105 |
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105 | |||
106 | >>> sys | ifilter(lambda _:isinstance(_.value, int)) \ |
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106 | >>> sys | ifilter(lambda _:isinstance(_.value, int)) \ | |
107 | ... | ieval(lambda _: (_.key, hex(_.value))) | idump |
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107 | ... | ieval(lambda _: (_.key, hex(_.value))) | idump | |
108 | 0 |1 |
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108 | 0 |1 | |
109 | api_version|0x3f4 |
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109 | api_version|0x3f4 | |
110 | dllhandle |0x1e000000 |
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110 | dllhandle |0x1e000000 | |
111 | hexversion |0x20402f0 |
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111 | hexversion |0x20402f0 | |
112 | maxint |0x7fffffff |
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112 | maxint |0x7fffffff | |
113 | maxunicode |0xffff |
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113 | maxunicode |0xffff | |
114 | """ |
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114 | """ | |
115 |
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115 | |||
116 | import sys, os, os.path, stat, glob, new, csv, datetime, types |
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116 | import sys, os, os.path, stat, glob, new, csv, datetime, types | |
117 | import itertools, mimetypes |
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117 | import itertools, mimetypes | |
118 |
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118 | |||
119 | try: # Python 2.3 compatibility |
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119 | try: # Python 2.3 compatibility | |
120 | import collections |
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120 | import collections | |
121 | except ImportError: |
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121 | except ImportError: | |
122 | deque = list |
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122 | deque = list | |
123 | else: |
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123 | else: | |
124 | deque = collections.deque |
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124 | deque = collections.deque | |
125 |
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125 | |||
126 | try: # Python 2.3 compatibility |
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126 | try: # Python 2.3 compatibility | |
127 | set |
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127 | set | |
128 | except NameError: |
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128 | except NameError: | |
129 | import sets |
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129 | import sets | |
130 | set = sets.Set |
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130 | set = sets.Set | |
131 |
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131 | |||
132 | try: # Python 2.3 compatibility |
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132 | try: # Python 2.3 compatibility | |
133 | sorted |
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133 | sorted | |
134 | except NameError: |
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134 | except NameError: | |
135 | def sorted(iterator, key=None, reverse=False): |
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135 | def sorted(iterator, key=None, reverse=False): | |
136 | items = list(iterator) |
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136 | items = list(iterator) | |
137 | if key is not None: |
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137 | if key is not None: | |
138 | items.sort(lambda i1, i2: cmp(key(i1), key(i2))) |
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138 | items.sort(lambda i1, i2: cmp(key(i1), key(i2))) | |
139 | else: |
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139 | else: | |
140 | items.sort() |
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140 | items.sort() | |
141 | if reverse: |
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141 | if reverse: | |
142 | items.reverse() |
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142 | items.reverse() | |
143 | return items |
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143 | return items | |
144 |
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144 | |||
145 | try: |
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145 | try: | |
146 | import pwd |
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146 | import pwd | |
147 | except ImportError: |
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147 | except ImportError: | |
148 | pwd = None |
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148 | pwd = None | |
149 |
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149 | |||
150 | try: |
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150 | try: | |
151 | import grp |
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151 | import grp | |
152 | except ImportError: |
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152 | except ImportError: | |
153 | grp = None |
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153 | grp = None | |
154 |
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154 | |||
155 | import path |
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155 | import path | |
156 | try: |
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156 | try: | |
157 | from IPython import genutils, ipapi |
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157 | from IPython import genutils, ipapi | |
158 | except ImportError: |
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158 | except ImportError: | |
159 | genutils = None |
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159 | genutils = None | |
160 | ipapi = None |
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160 | ipapi = None | |
161 |
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161 | |||
162 | import astyle |
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162 | import astyle | |
163 |
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163 | |||
164 |
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164 | |||
165 | __all__ = [ |
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165 | __all__ = [ | |
166 | "ifile", "ils", "iglob", "iwalk", "ipwdentry", "ipwd", "igrpentry", "igrp", |
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166 | "ifile", "ils", "iglob", "iwalk", "ipwdentry", "ipwd", "igrpentry", "igrp", | |
167 | "icsv", "ix", "ichain", "isort", "ifilter", "ieval", "ienum", "ienv", |
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167 | "icsv", "ix", "ichain", "isort", "ifilter", "ieval", "ienum", "ienv", | |
168 | "idump", "iless" |
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168 | "idump", "iless" | |
169 | ] |
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169 | ] | |
170 |
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170 | |||
171 |
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171 | |||
172 | os.stat_float_times(True) # enable microseconds |
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172 | os.stat_float_times(True) # enable microseconds | |
173 |
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173 | |||
174 |
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174 | |||
175 | class AttrNamespace(object): |
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175 | class AttrNamespace(object): | |
176 | """ |
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176 | """ | |
177 | Helper class that is used for providing a namespace for evaluating |
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177 | Helper class that is used for providing a namespace for evaluating | |
178 | expressions containing attribute names of an object. |
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178 | expressions containing attribute names of an object. | |
179 | """ |
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179 | """ | |
180 | def __init__(self, wrapped): |
|
180 | def __init__(self, wrapped): | |
181 | self.wrapped = wrapped |
|
181 | self.wrapped = wrapped | |
182 |
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182 | |||
183 | def __getitem__(self, name): |
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183 | def __getitem__(self, name): | |
184 | if name == "_": |
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184 | if name == "_": | |
185 | return self.wrapped |
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185 | return self.wrapped | |
186 | try: |
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186 | try: | |
187 | return getattr(self.wrapped, name) |
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187 | return getattr(self.wrapped, name) | |
188 | except AttributeError: |
|
188 | except AttributeError: | |
189 | raise KeyError(name) |
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189 | raise KeyError(name) | |
190 |
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190 | |||
191 | # Python 2.3 compatibility |
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191 | # Python 2.3 compatibility | |
192 | # use eval workaround to find out which names are used in the |
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192 | # use eval workaround to find out which names are used in the | |
193 | # eval string and put them into the locals. This works for most |
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193 | # eval string and put them into the locals. This works for most | |
194 | # normal uses case, bizarre ones like accessing the locals() |
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194 | # normal uses case, bizarre ones like accessing the locals() | |
195 | # will fail |
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195 | # will fail | |
196 | try: |
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196 | try: | |
197 | eval("_", None, AttrNamespace(None)) |
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197 | eval("_", None, AttrNamespace(None)) | |
198 | except TypeError: |
|
198 | except TypeError: | |
199 | real_eval = eval |
|
199 | real_eval = eval | |
200 | def eval(codestring, _globals, _locals): |
|
200 | def eval(codestring, _globals, _locals): | |
201 | """ |
|
201 | """ | |
202 | eval(source[, globals[, locals]]) -> value |
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202 | eval(source[, globals[, locals]]) -> value | |
203 |
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203 | |||
204 | Evaluate the source in the context of globals and locals. |
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204 | Evaluate the source in the context of globals and locals. | |
205 | The source may be a string representing a Python expression |
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205 | The source may be a string representing a Python expression | |
206 | or a code object as returned by compile(). |
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206 | or a code object as returned by compile(). | |
207 | The globals must be a dictionary and locals can be any mappping. |
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207 | The globals must be a dictionary and locals can be any mappping. | |
208 |
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208 | |||
209 | This function is a workaround for the shortcomings of |
|
209 | This function is a workaround for the shortcomings of | |
210 | Python 2.3's eval. |
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210 | Python 2.3's eval. | |
211 | """ |
|
211 | """ | |
212 |
|
212 | |||
213 | if isinstance(codestring, basestring): |
|
213 | if isinstance(codestring, basestring): | |
214 | code = compile(codestring, "_eval", "eval") |
|
214 | code = compile(codestring, "_eval", "eval") | |
215 | else: |
|
215 | else: | |
216 | code = codestring |
|
216 | code = codestring | |
217 | newlocals = {} |
|
217 | newlocals = {} | |
218 | for name in code.co_names: |
|
218 | for name in code.co_names: | |
219 | try: |
|
219 | try: | |
220 | newlocals[name] = _locals[name] |
|
220 | newlocals[name] = _locals[name] | |
221 | except KeyError: |
|
221 | except KeyError: | |
222 | pass |
|
222 | pass | |
223 | return real_eval(code, _globals, newlocals) |
|
223 | return real_eval(code, _globals, newlocals) | |
224 |
|
224 | |||
225 |
|
225 | |||
226 | noitem = object() |
|
226 | noitem = object() | |
227 |
|
227 | |||
228 | def item(iterator, index, default=noitem): |
|
228 | def item(iterator, index, default=noitem): | |
229 | """ |
|
229 | """ | |
230 | Return the ``index``th item from the iterator ``iterator``. |
|
230 | Return the ``index``th item from the iterator ``iterator``. | |
231 | ``index`` must be an integer (negative integers are relative to the |
|
231 | ``index`` must be an integer (negative integers are relative to the | |
232 | end (i.e. the last item produced by the iterator)). |
|
232 | end (i.e. the last item produced by the iterator)). | |
233 |
|
233 | |||
234 | If ``default`` is given, this will be the default value when |
|
234 | If ``default`` is given, this will be the default value when | |
235 | the iterator doesn't contain an item at this position. Otherwise an |
|
235 | the iterator doesn't contain an item at this position. Otherwise an | |
236 | ``IndexError`` will be raised. |
|
236 | ``IndexError`` will be raised. | |
237 |
|
237 | |||
238 | Note that using this function will partially or totally exhaust the |
|
238 | Note that using this function will partially or totally exhaust the | |
239 | iterator. |
|
239 | iterator. | |
240 | """ |
|
240 | """ | |
241 | i = index |
|
241 | i = index | |
242 | if i>=0: |
|
242 | if i>=0: | |
243 | for item in iterator: |
|
243 | for item in iterator: | |
244 | if not i: |
|
244 | if not i: | |
245 | return item |
|
245 | return item | |
246 | i -= 1 |
|
246 | i -= 1 | |
247 | else: |
|
247 | else: | |
248 | i = -index |
|
248 | i = -index | |
249 | cache = deque() |
|
249 | cache = deque() | |
250 | for item in iterator: |
|
250 | for item in iterator: | |
251 | cache.append(item) |
|
251 | cache.append(item) | |
252 | if len(cache)>i: |
|
252 | if len(cache)>i: | |
253 | cache.popleft() |
|
253 | cache.popleft() | |
254 | if len(cache)==i: |
|
254 | if len(cache)==i: | |
255 | return cache.popleft() |
|
255 | return cache.popleft() | |
256 | if default is noitem: |
|
256 | if default is noitem: | |
257 | raise IndexError(index) |
|
257 | raise IndexError(index) | |
258 | else: |
|
258 | else: | |
259 | return default |
|
259 | return default | |
260 |
|
260 | |||
261 |
|
261 | |||
262 | def getglobals(g): |
|
262 | def getglobals(g): | |
263 | if g is None: |
|
263 | if g is None: | |
264 | if ipapi is not None: |
|
264 | if ipapi is not None: | |
265 | return ipapi.get().user_ns |
|
265 | return ipapi.get().user_ns | |
266 | else: |
|
266 | else: | |
267 | return globals() |
|
267 | return globals() | |
268 | return g |
|
268 | return g | |
269 |
|
269 | |||
270 |
|
270 | |||
271 | class Table(object): |
|
271 | class Table(object): | |
272 | """ |
|
272 | """ | |
273 | A ``Table`` is an object that produces items (just like a normal Python |
|
273 | A ``Table`` is an object that produces items (just like a normal Python | |
274 | iterator/generator does) and can be used as the first object in a pipeline |
|
274 | iterator/generator does) and can be used as the first object in a pipeline | |
275 | expression. The displayhook will open the default browser for such an object |
|
275 | expression. The displayhook will open the default browser for such an object | |
276 | (instead of simply printing the ``repr()`` result). |
|
276 | (instead of simply printing the ``repr()`` result). | |
277 | """ |
|
277 | """ | |
278 |
|
278 | |||
279 | # We want to support ``foo`` and ``foo()`` in pipeline expression: |
|
279 | # We want to support ``foo`` and ``foo()`` in pipeline expression: | |
280 | # So we implement the required operators (``|`` and ``+``) in the metaclass, |
|
280 | # So we implement the required operators (``|`` and ``+``) in the metaclass, | |
281 | # instantiate the class and forward the operator to the instance |
|
281 | # instantiate the class and forward the operator to the instance | |
282 | class __metaclass__(type): |
|
282 | class __metaclass__(type): | |
283 | def __iter__(self): |
|
283 | def __iter__(self): | |
284 | return iter(self()) |
|
284 | return iter(self()) | |
285 |
|
285 | |||
286 | def __or__(self, other): |
|
286 | def __or__(self, other): | |
287 | return self() | other |
|
287 | return self() | other | |
288 |
|
288 | |||
289 | def __add__(self, other): |
|
289 | def __add__(self, other): | |
290 | return self() + other |
|
290 | return self() + other | |
291 |
|
291 | |||
292 | def __radd__(self, other): |
|
292 | def __radd__(self, other): | |
293 | return other + self() |
|
293 | return other + self() | |
294 |
|
294 | |||
295 | def __getitem__(self, index): |
|
295 | def __getitem__(self, index): | |
296 | return self()[index] |
|
296 | return self()[index] | |
297 |
|
297 | |||
298 | def __getitem__(self, index): |
|
298 | def __getitem__(self, index): | |
299 | return item(self, index) |
|
299 | return item(self, index) | |
300 |
|
300 | |||
301 | def __contains__(self, item): |
|
301 | def __contains__(self, item): | |
302 | for haveitem in self: |
|
302 | for haveitem in self: | |
303 | if item == haveitem: |
|
303 | if item == haveitem: | |
304 | return True |
|
304 | return True | |
305 | return False |
|
305 | return False | |
306 |
|
306 | |||
307 | def __or__(self, other): |
|
307 | def __or__(self, other): | |
308 | # autoinstantiate right hand side |
|
308 | # autoinstantiate right hand side | |
309 | if isinstance(other, type) and issubclass(other, (Table, Display)): |
|
309 | if isinstance(other, type) and issubclass(other, (Table, Display)): | |
310 | other = other() |
|
310 | other = other() | |
311 | # treat simple strings and functions as ``ieval`` instances |
|
311 | # treat simple strings and functions as ``ieval`` instances | |
312 | elif not isinstance(other, Display) and not isinstance(other, Table): |
|
312 | elif not isinstance(other, Display) and not isinstance(other, Table): | |
313 | other = ieval(other) |
|
313 | other = ieval(other) | |
314 | # forward operations to the right hand side |
|
314 | # forward operations to the right hand side | |
315 | return other.__ror__(self) |
|
315 | return other.__ror__(self) | |
316 |
|
316 | |||
317 | def __add__(self, other): |
|
317 | def __add__(self, other): | |
318 | # autoinstantiate right hand side |
|
318 | # autoinstantiate right hand side | |
319 | if isinstance(other, type) and issubclass(other, Table): |
|
319 | if isinstance(other, type) and issubclass(other, Table): | |
320 | other = other() |
|
320 | other = other() | |
321 | return ichain(self, other) |
|
321 | return ichain(self, other) | |
322 |
|
322 | |||
323 | def __radd__(self, other): |
|
323 | def __radd__(self, other): | |
324 | # autoinstantiate left hand side |
|
324 | # autoinstantiate left hand side | |
325 | if isinstance(other, type) and issubclass(other, Table): |
|
325 | if isinstance(other, type) and issubclass(other, Table): | |
326 | other = other() |
|
326 | other = other() | |
327 | return ichain(other, self) |
|
327 | return ichain(other, self) | |
328 |
|
328 | |||
329 | def __iter__(self): |
|
329 | def __iter__(self): | |
330 | return xiter(self, "default") |
|
330 | return xiter(self, "default") | |
331 |
|
331 | |||
332 |
|
332 | |||
333 | class Pipe(Table): |
|
333 | class Pipe(Table): | |
334 | """ |
|
334 | """ | |
335 | A ``Pipe`` is an object that can be used in a pipeline expression. It |
|
335 | A ``Pipe`` is an object that can be used in a pipeline expression. It | |
336 | processes the objects it gets from its input ``Table``/``Pipe``. Note that |
|
336 | processes the objects it gets from its input ``Table``/``Pipe``. Note that | |
337 | a ``Pipe`` object can't be used as the first object in a pipeline |
|
337 | a ``Pipe`` object can't be used as the first object in a pipeline | |
338 | expression, as it doesn't produces items itself. |
|
338 | expression, as it doesn't produces items itself. | |
339 | """ |
|
339 | """ | |
340 | class __metaclass__(Table.__metaclass__): |
|
340 | class __metaclass__(Table.__metaclass__): | |
341 | def __ror__(self, input): |
|
341 | def __ror__(self, input): | |
342 | return input | self() |
|
342 | return input | self() | |
343 |
|
343 | |||
344 | def __ror__(self, input): |
|
344 | def __ror__(self, input): | |
345 | # autoinstantiate left hand side |
|
345 | # autoinstantiate left hand side | |
346 | if isinstance(input, type) and issubclass(input, Table): |
|
346 | if isinstance(input, type) and issubclass(input, Table): | |
347 | input = input() |
|
347 | input = input() | |
348 | self.input = input |
|
348 | self.input = input | |
349 | return self |
|
349 | return self | |
350 |
|
350 | |||
351 |
|
351 | |||
352 | def _getattr(obj, name, default=noitem): |
|
352 | def _getattr(obj, name, default=noitem): | |
353 | """ |
|
353 | """ | |
354 | Internal helper for getting an attribute of an item. If ``name`` is ``None`` |
|
354 | Internal helper for getting an attribute of an item. If ``name`` is ``None`` | |
355 | return the object itself. If ``name`` is an integer, use ``__getitem__`` |
|
355 | return the object itself. If ``name`` is an integer, use ``__getitem__`` | |
356 | instead. If the attribute or item does not exist, return ``default``. |
|
356 | instead. If the attribute or item does not exist, return ``default``. | |
357 | """ |
|
357 | """ | |
358 | if name is None: |
|
358 | if name is None: | |
359 | return obj |
|
359 | return obj | |
360 | elif isinstance(name, basestring): |
|
360 | elif isinstance(name, basestring): | |
361 | if name.endswith("()"): |
|
361 | if name.endswith("()"): | |
362 | return getattr(obj, name[:-2], default)() |
|
362 | return getattr(obj, name[:-2], default)() | |
363 | else: |
|
363 | else: | |
364 | return getattr(obj, name, default) |
|
364 | return getattr(obj, name, default) | |
365 | elif callable(name): |
|
365 | elif callable(name): | |
366 | try: |
|
366 | try: | |
367 | return name(obj) |
|
367 | return name(obj) | |
368 | except AttributeError: |
|
368 | except AttributeError: | |
369 | return default |
|
369 | return default | |
370 | else: |
|
370 | else: | |
371 | try: |
|
371 | try: | |
372 | return obj[name] |
|
372 | return obj[name] | |
373 | except IndexError: |
|
373 | except IndexError: | |
374 | return default |
|
374 | return default | |
375 |
|
375 | |||
376 |
|
376 | |||
377 | def _attrname(name): |
|
377 | def _attrname(name): | |
378 | """ |
|
378 | """ | |
379 | Internal helper that gives a proper name for the attribute ``name`` |
|
379 | Internal helper that gives a proper name for the attribute ``name`` | |
380 | (which might be ``None`` or an ``int``). |
|
380 | (which might be ``None`` or an ``int``). | |
381 | """ |
|
381 | """ | |
382 | if name is None: |
|
382 | if name is None: | |
383 | return "_" |
|
383 | return "_" | |
384 | elif isinstance(name, basestring): |
|
384 | elif isinstance(name, basestring): | |
385 | return name |
|
385 | return name | |
386 | elif callable(name): |
|
386 | elif callable(name): | |
387 | return getattr(name, "__xname__", name.__name__) |
|
387 | return getattr(name, "__xname__", name.__name__) | |
388 | else: |
|
388 | else: | |
389 | return str(name) |
|
389 | return str(name) | |
390 |
|
390 | |||
391 |
|
391 | |||
392 | def xrepr(item, mode): |
|
392 | def xrepr(item, mode): | |
393 | try: |
|
393 | try: | |
394 | func = item.__xrepr__ |
|
394 | func = item.__xrepr__ | |
395 | except AttributeError: |
|
395 | except AttributeError: | |
396 | pass |
|
396 | pass | |
397 | else: |
|
397 | else: | |
398 | try: |
|
398 | try: | |
399 | for x in func(mode): |
|
399 | for x in func(mode): | |
400 | yield x |
|
400 | yield x | |
401 | except (KeyboardInterrupt, SystemExit): |
|
401 | except (KeyboardInterrupt, SystemExit): | |
402 | raise |
|
402 | raise | |
403 | except Exception: |
|
403 | except Exception: | |
404 | yield (astyle.style_default, repr(item)) |
|
404 | yield (astyle.style_default, repr(item)) | |
405 | return |
|
405 | return | |
406 | if item is None: |
|
406 | if item is None: | |
407 | yield (astyle.style_type_none, repr(item)) |
|
407 | yield (astyle.style_type_none, repr(item)) | |
408 | elif isinstance(item, bool): |
|
408 | elif isinstance(item, bool): | |
409 | yield (astyle.style_type_bool, repr(item)) |
|
409 | yield (astyle.style_type_bool, repr(item)) | |
410 | elif isinstance(item, str): |
|
410 | elif isinstance(item, str): | |
411 | if mode == "cell": |
|
411 | if mode == "cell": | |
412 | yield (astyle.style_default, repr(item.expandtabs(tab))[1:-1]) |
|
412 | yield (astyle.style_default, repr(item.expandtabs(tab))[1:-1]) | |
413 | else: |
|
413 | else: | |
414 | yield (astyle.style_default, repr(item)) |
|
414 | yield (astyle.style_default, repr(item)) | |
415 | elif isinstance(item, unicode): |
|
415 | elif isinstance(item, unicode): | |
416 | if mode == "cell": |
|
416 | if mode == "cell": | |
417 | yield (astyle.style_default, repr(item.expandtabs(tab))[2:-1]) |
|
417 | yield (astyle.style_default, repr(item.expandtabs(tab))[2:-1]) | |
418 | else: |
|
418 | else: | |
419 | yield (astyle.style_default, repr(item)) |
|
419 | yield (astyle.style_default, repr(item)) | |
420 | elif isinstance(item, (int, long, float)): |
|
420 | elif isinstance(item, (int, long, float)): | |
421 | yield (1, True) |
|
421 | yield (1, True) | |
422 | yield (astyle.style_type_number, repr(item)) |
|
422 | yield (astyle.style_type_number, repr(item)) | |
423 | elif isinstance(item, complex): |
|
423 | elif isinstance(item, complex): | |
424 | yield (astyle.style_type_number, repr(item)) |
|
424 | yield (astyle.style_type_number, repr(item)) | |
425 | elif isinstance(item, datetime.datetime): |
|
425 | elif isinstance(item, datetime.datetime): | |
426 | if mode == "cell": |
|
426 | if mode == "cell": | |
427 | # Don't use strftime() here, as this requires year >= 1900 |
|
427 | # Don't use strftime() here, as this requires year >= 1900 | |
428 | yield (astyle.style_type_datetime, |
|
428 | yield (astyle.style_type_datetime, | |
429 | "%04d-%02d-%02d %02d:%02d:%02d.%06d" % \ |
|
429 | "%04d-%02d-%02d %02d:%02d:%02d.%06d" % \ | |
430 | (item.year, item.month, item.day, |
|
430 | (item.year, item.month, item.day, | |
431 | item.hour, item.minute, item.second, |
|
431 | item.hour, item.minute, item.second, | |
432 | item.microsecond), |
|
432 | item.microsecond), | |
433 | ) |
|
433 | ) | |
434 | else: |
|
434 | else: | |
435 | yield (astyle.style_type_datetime, repr(item)) |
|
435 | yield (astyle.style_type_datetime, repr(item)) | |
436 | elif isinstance(item, datetime.date): |
|
436 | elif isinstance(item, datetime.date): | |
437 | if mode == "cell": |
|
437 | if mode == "cell": | |
438 | yield (astyle.style_type_datetime, |
|
438 | yield (astyle.style_type_datetime, | |
439 | "%04d-%02d-%02d" % (item.year, item.month, item.day)) |
|
439 | "%04d-%02d-%02d" % (item.year, item.month, item.day)) | |
440 | else: |
|
440 | else: | |
441 | yield (astyle.style_type_datetime, repr(item)) |
|
441 | yield (astyle.style_type_datetime, repr(item)) | |
442 | elif isinstance(item, datetime.time): |
|
442 | elif isinstance(item, datetime.time): | |
443 | if mode == "cell": |
|
443 | if mode == "cell": | |
444 | yield (astyle.style_type_datetime, |
|
444 | yield (astyle.style_type_datetime, | |
445 | "%02d:%02d:%02d.%06d" % \ |
|
445 | "%02d:%02d:%02d.%06d" % \ | |
446 | (item.hour, item.minute, item.second, item.microsecond)) |
|
446 | (item.hour, item.minute, item.second, item.microsecond)) | |
447 | else: |
|
447 | else: | |
448 | yield (astyle.style_type_datetime, repr(item)) |
|
448 | yield (astyle.style_type_datetime, repr(item)) | |
449 | elif isinstance(item, datetime.timedelta): |
|
449 | elif isinstance(item, datetime.timedelta): | |
450 | yield (astyle.style_type_datetime, repr(item)) |
|
450 | yield (astyle.style_type_datetime, repr(item)) | |
451 | elif isinstance(item, Exception): |
|
451 | elif isinstance(item, Exception): | |
452 | if item.__class__.__module__ == "exceptions": |
|
452 | if item.__class__.__module__ == "exceptions": | |
453 | classname = item.__class__.__name__ |
|
453 | classname = item.__class__.__name__ | |
454 | else: |
|
454 | else: | |
455 | classname = "%s.%s" % \ |
|
455 | classname = "%s.%s" % \ | |
456 | (item.__class__.__module__, item.__class__.__name__) |
|
456 | (item.__class__.__module__, item.__class__.__name__) | |
457 | if mode == "header" or mode == "footer": |
|
457 | if mode == "header" or mode == "footer": | |
458 | yield (astyle.style_error, "%s: %s" % (classname, item)) |
|
458 | yield (astyle.style_error, "%s: %s" % (classname, item)) | |
459 | else: |
|
459 | else: | |
460 | yield (astyle.style_error, classname) |
|
460 | yield (astyle.style_error, classname) | |
461 | elif isinstance(item, (list, tuple)): |
|
461 | elif isinstance(item, (list, tuple)): | |
462 | if mode == "header" or mode == "footer": |
|
462 | if mode == "header" or mode == "footer": | |
463 | if item.__class__.__module__ == "__builtin__": |
|
463 | if item.__class__.__module__ == "__builtin__": | |
464 | classname = item.__class__.__name__ |
|
464 | classname = item.__class__.__name__ | |
465 | else: |
|
465 | else: | |
466 | classname = "%s.%s" % \ |
|
466 | classname = "%s.%s" % \ | |
467 | (item.__class__.__module__,item.__class__.__name__) |
|
467 | (item.__class__.__module__,item.__class__.__name__) | |
468 | yield (astyle.style_default, |
|
468 | yield (astyle.style_default, | |
469 | "<%s object with %d items at 0x%x>" % \ |
|
469 | "<%s object with %d items at 0x%x>" % \ | |
470 | (classname, len(item), id(item))) |
|
470 | (classname, len(item), id(item))) | |
471 | else: |
|
471 | else: | |
472 | yield (-1, False) |
|
472 | yield (-1, False) | |
473 | if isinstance(item, list): |
|
473 | if isinstance(item, list): | |
474 | yield (astyle.style_default, "[") |
|
474 | yield (astyle.style_default, "[") | |
475 | end = "]" |
|
475 | end = "]" | |
476 | else: |
|
476 | else: | |
477 | yield (astyle.style_default, "(") |
|
477 | yield (astyle.style_default, "(") | |
478 | end = ")" |
|
478 | end = ")" | |
479 | for (i, subitem) in enumerate(item): |
|
479 | for (i, subitem) in enumerate(item): | |
480 | if i: |
|
480 | if i: | |
481 | yield (astyle.style_default, ", ") |
|
481 | yield (astyle.style_default, ", ") | |
482 | for part in xrepr(subitem, "default"): |
|
482 | for part in xrepr(subitem, "default"): | |
483 | yield part |
|
483 | yield part | |
484 | yield (astyle.style_default, end) |
|
484 | yield (astyle.style_default, end) | |
485 | elif isinstance(item, (dict, types.DictProxyType)): |
|
485 | elif isinstance(item, (dict, types.DictProxyType)): | |
486 | if mode == "header" or mode == "footer": |
|
486 | if mode == "header" or mode == "footer": | |
487 | if item.__class__.__module__ == "__builtin__": |
|
487 | if item.__class__.__module__ == "__builtin__": | |
488 | classname = item.__class__.__name__ |
|
488 | classname = item.__class__.__name__ | |
489 | else: |
|
489 | else: | |
490 | classname = "%s.%s" % \ |
|
490 | classname = "%s.%s" % \ | |
491 | (item.__class__.__module__,item.__class__.__name__) |
|
491 | (item.__class__.__module__,item.__class__.__name__) | |
492 | yield (astyle.style_default, |
|
492 | yield (astyle.style_default, | |
493 | "<%s object with %d items at 0x%x>" % \ |
|
493 | "<%s object with %d items at 0x%x>" % \ | |
494 | (classname, len(item), id(item))) |
|
494 | (classname, len(item), id(item))) | |
495 | else: |
|
495 | else: | |
496 | yield (-1, False) |
|
496 | yield (-1, False) | |
497 | if isinstance(item, dict): |
|
497 | if isinstance(item, dict): | |
498 | yield (astyle.style_default, "{") |
|
498 | yield (astyle.style_default, "{") | |
499 | end = "}" |
|
499 | end = "}" | |
500 | else: |
|
500 | else: | |
501 | yield (astyle.style_default, "dictproxy((") |
|
501 | yield (astyle.style_default, "dictproxy((") | |
502 | end = "})" |
|
502 | end = "})" | |
503 | for (i, (key, value)) in enumerate(item.iteritems()): |
|
503 | for (i, (key, value)) in enumerate(item.iteritems()): | |
504 | if i: |
|
504 | if i: | |
505 | yield (astyle.style_default, ", ") |
|
505 | yield (astyle.style_default, ", ") | |
506 | for part in xrepr(key, "default"): |
|
506 | for part in xrepr(key, "default"): | |
507 | yield part |
|
507 | yield part | |
508 | yield (astyle.style_default, ": ") |
|
508 | yield (astyle.style_default, ": ") | |
509 | for part in xrepr(value, "default"): |
|
509 | for part in xrepr(value, "default"): | |
510 | yield part |
|
510 | yield part | |
511 | yield (astyle.style_default, end) |
|
511 | yield (astyle.style_default, end) | |
512 | else: |
|
512 | else: | |
513 | yield (astyle.style_default, repr(item)) |
|
513 | yield (astyle.style_default, repr(item)) | |
514 |
|
514 | |||
515 |
|
515 | |||
516 | def xattrs(item, mode): |
|
516 | def xattrs(item, mode): | |
517 | try: |
|
517 | try: | |
518 | func = item.__xattrs__ |
|
518 | func = item.__xattrs__ | |
519 | except AttributeError: |
|
519 | except AttributeError: | |
520 | if mode == "detail": |
|
520 | if mode == "detail": | |
521 | return dir(item) |
|
521 | return dir(item) | |
522 | else: |
|
522 | else: | |
523 | return (None,) |
|
523 | return (None,) | |
524 | else: |
|
524 | else: | |
525 | try: |
|
525 | try: | |
526 | return func(mode) |
|
526 | return func(mode) | |
527 | except (KeyboardInterrupt, SystemExit): |
|
527 | except (KeyboardInterrupt, SystemExit): | |
528 | raise |
|
528 | raise | |
529 | except Exception: |
|
529 | except Exception: | |
530 | return (None,) |
|
530 | return (None,) | |
531 |
|
531 | |||
532 |
|
532 | |||
533 | def xiter(item, mode): |
|
533 | def xiter(item, mode): | |
534 | if mode == "detail": |
|
534 | if mode == "detail": | |
535 | def items(): |
|
535 | def items(): | |
536 | for name in xattrs(item, mode): |
|
536 | for name in xattrs(item, mode): | |
537 | yield XAttr(item, name) |
|
537 | yield XAttr(item, name) | |
538 | return items() |
|
538 | return items() | |
539 | try: |
|
539 | try: | |
540 | func = item.__xiter__ |
|
540 | func = item.__xiter__ | |
541 | except AttributeError: |
|
541 | except AttributeError: | |
542 | if isinstance(item, (dict, types.DictProxyType)): |
|
542 | if isinstance(item, (dict, types.DictProxyType)): | |
543 | def items(item): |
|
543 | def items(item): | |
544 | fields = ("key", "value") |
|
544 | fields = ("key", "value") | |
545 | for (key, value) in item.iteritems(): |
|
545 | for (key, value) in item.iteritems(): | |
546 | yield Fields(fields, key=key, value=value) |
|
546 | yield Fields(fields, key=key, value=value) | |
547 | return items(item) |
|
547 | return items(item) | |
548 | elif isinstance(item, new.module): |
|
548 | elif isinstance(item, new.module): | |
549 | def items(item): |
|
549 | def items(item): | |
550 | fields = ("key", "value") |
|
550 | fields = ("key", "value") | |
551 | for key in sorted(item.__dict__): |
|
551 | for key in sorted(item.__dict__): | |
552 | yield Fields(fields, key=key, value=getattr(item, key)) |
|
552 | yield Fields(fields, key=key, value=getattr(item, key)) | |
553 | return items(item) |
|
553 | return items(item) | |
554 | elif isinstance(item, basestring): |
|
554 | elif isinstance(item, basestring): | |
555 | if not len(item): |
|
555 | if not len(item): | |
556 | raise ValueError("can't enter empty string") |
|
556 | raise ValueError("can't enter empty string") | |
557 | lines = item.splitlines() |
|
557 | lines = item.splitlines() | |
558 | if len(lines) <= 1: |
|
558 | if len(lines) <= 1: | |
559 | raise ValueError("can't enter one line string") |
|
559 | raise ValueError("can't enter one line string") | |
560 | return iter(lines) |
|
560 | return iter(lines) | |
561 | return iter(item) |
|
561 | return iter(item) | |
562 | else: |
|
562 | else: | |
563 | return iter(func(mode)) # iter() just to be safe |
|
563 | return iter(func(mode)) # iter() just to be safe | |
564 |
|
564 | |||
565 |
|
565 | |||
566 | class ichain(Pipe): |
|
566 | class ichain(Pipe): | |
567 | """ |
|
567 | """ | |
568 | Chains multiple ``Table``s into one. |
|
568 | Chains multiple ``Table``s into one. | |
569 | """ |
|
569 | """ | |
570 |
|
570 | |||
571 | def __init__(self, *iters): |
|
571 | def __init__(self, *iters): | |
572 | self.iters = iters |
|
572 | self.iters = iters | |
573 |
|
573 | |||
574 | def __xiter__(self, mode): |
|
574 | def __xiter__(self, mode): | |
575 | return itertools.chain(*self.iters) |
|
575 | return itertools.chain(*self.iters) | |
576 |
|
576 | |||
577 | def __xrepr__(self, mode): |
|
577 | def __xrepr__(self, mode): | |
578 | if mode == "header" or mode == "footer": |
|
578 | if mode == "header" or mode == "footer": | |
579 | for (i, item) in enumerate(self.iters): |
|
579 | for (i, item) in enumerate(self.iters): | |
580 | if i: |
|
580 | if i: | |
581 | yield (astyle.style_default, "+") |
|
581 | yield (astyle.style_default, "+") | |
582 | if isinstance(item, Pipe): |
|
582 | if isinstance(item, Pipe): | |
583 | yield (astyle.style_default, "(") |
|
583 | yield (astyle.style_default, "(") | |
584 | for part in xrepr(item, mode): |
|
584 | for part in xrepr(item, mode): | |
585 | yield part |
|
585 | yield part | |
586 | if isinstance(item, Pipe): |
|
586 | if isinstance(item, Pipe): | |
587 | yield (astyle.style_default, ")") |
|
587 | yield (astyle.style_default, ")") | |
588 | else: |
|
588 | else: | |
589 | yield (astyle.style_default, repr(self)) |
|
589 | yield (astyle.style_default, repr(self)) | |
590 |
|
590 | |||
591 | def __repr__(self): |
|
591 | def __repr__(self): | |
592 | args = ", ".join([repr(it) for it in self.iters]) |
|
592 | args = ", ".join([repr(it) for it in self.iters]) | |
593 | return "%s.%s(%s)" % \ |
|
593 | return "%s.%s(%s)" % \ | |
594 | (self.__class__.__module__, self.__class__.__name__, args) |
|
594 | (self.__class__.__module__, self.__class__.__name__, args) | |
595 |
|
595 | |||
596 |
|
596 | |||
597 | class ifile(path.path): |
|
597 | class ifile(path.path): | |
598 | """ |
|
598 | """ | |
599 | file (or directory) object. |
|
599 | file (or directory) object. | |
600 | """ |
|
600 | """ | |
601 |
|
601 | |||
602 | def __add_(self, other): |
|
602 | def __add_(self, other): | |
603 | return ifile(path._base(self) + other) |
|
603 | return ifile(path._base(self) + other) | |
604 |
|
604 | |||
605 | def __radd_(self, other): |
|
605 | def __radd_(self, other): | |
606 | return ifile(other + path._base(self)) |
|
606 | return ifile(other + path._base(self)) | |
607 |
|
607 | |||
608 | def __div_(self, other): |
|
608 | def __div_(self, other): | |
609 | return ifile(path.__div__(self, other)) |
|
609 | return ifile(path.__div__(self, other)) | |
610 |
|
610 | |||
611 | def getcwd(): |
|
611 | def getcwd(): | |
612 | return ifile(path.path.getcwd()) |
|
612 | return ifile(path.path.getcwd()) | |
613 | getcwd.__doc__ = path.path.getcwd.__doc__ |
|
613 | getcwd.__doc__ = path.path.getcwd.__doc__ | |
614 | getcwd = staticmethod(getcwd) |
|
614 | getcwd = staticmethod(getcwd) | |
615 |
|
615 | |||
616 | def abspath(self): |
|
616 | def abspath(self): | |
617 | return ifile(path.path.abspath(self)) |
|
617 | return ifile(path.path.abspath(self)) | |
618 | abspath.__doc__ = path.path.abspath.__doc__ |
|
618 | abspath.__doc__ = path.path.abspath.__doc__ | |
619 |
|
619 | |||
620 | def normcase(self): |
|
620 | def normcase(self): | |
621 | return ifile(path.path.normcase(self)) |
|
621 | return ifile(path.path.normcase(self)) | |
622 | normcase.__doc__ = path.path.normcase.__doc__ |
|
622 | normcase.__doc__ = path.path.normcase.__doc__ | |
623 |
|
623 | |||
624 | def normpath(self): |
|
624 | def normpath(self): | |
625 | return ifile(path.path.normpath(self)) |
|
625 | return ifile(path.path.normpath(self)) | |
626 | normpath.__doc__ = path.path.normpath.__doc__ |
|
626 | normpath.__doc__ = path.path.normpath.__doc__ | |
627 |
|
627 | |||
628 | def realpath(self): |
|
628 | def realpath(self): | |
629 | return ifile(path.path.realpath(self)) |
|
629 | return ifile(path.path.realpath(self)) | |
630 | realpath.__doc__ = path.path.realpath.__doc__ |
|
630 | realpath.__doc__ = path.path.realpath.__doc__ | |
631 |
|
631 | |||
632 | def expanduser(self): |
|
632 | def expanduser(self): | |
633 | return ifile(path.path.expanduser(self)) |
|
633 | return ifile(path.path.expanduser(self)) | |
634 | expanduser.__doc__ = path.path.expanduser.__doc__ |
|
634 | expanduser.__doc__ = path.path.expanduser.__doc__ | |
635 |
|
635 | |||
636 | def expandvars(self): |
|
636 | def expandvars(self): | |
637 | return ifile(path.path.expandvars(self)) |
|
637 | return ifile(path.path.expandvars(self)) | |
638 | expandvars.__doc__ = path.path.expandvars.__doc__ |
|
638 | expandvars.__doc__ = path.path.expandvars.__doc__ | |
639 |
|
639 | |||
640 | def dirname(self): |
|
640 | def dirname(self): | |
641 | return ifile(path.path.dirname(self)) |
|
641 | return ifile(path.path.dirname(self)) | |
642 | dirname.__doc__ = path.path.dirname.__doc__ |
|
642 | dirname.__doc__ = path.path.dirname.__doc__ | |
643 |
|
643 | |||
644 | parent = property(dirname, None, None, path.path.parent.__doc__) |
|
644 | parent = property(dirname, None, None, path.path.parent.__doc__) | |
645 |
|
645 | |||
646 | def splitpath(self): |
|
646 | def splitpath(self): | |
647 | (parent, child) = path.path.splitpath(self) |
|
647 | (parent, child) = path.path.splitpath(self) | |
648 | return (ifile(parent), child) |
|
648 | return (ifile(parent), child) | |
649 | splitpath.__doc__ = path.path.splitpath.__doc__ |
|
649 | splitpath.__doc__ = path.path.splitpath.__doc__ | |
650 |
|
650 | |||
651 | def splitdrive(self): |
|
651 | def splitdrive(self): | |
652 | (drive, rel) = path.path.splitdrive(self) |
|
652 | (drive, rel) = path.path.splitdrive(self) | |
653 | return (ifile(drive), rel) |
|
653 | return (ifile(drive), rel) | |
654 | splitdrive.__doc__ = path.path.splitdrive.__doc__ |
|
654 | splitdrive.__doc__ = path.path.splitdrive.__doc__ | |
655 |
|
655 | |||
656 | def splitext(self): |
|
656 | def splitext(self): | |
657 | (filename, ext) = path.path.splitext(self) |
|
657 | (filename, ext) = path.path.splitext(self) | |
658 | return (ifile(filename), ext) |
|
658 | return (ifile(filename), ext) | |
659 | splitext.__doc__ = path.path.splitext.__doc__ |
|
659 | splitext.__doc__ = path.path.splitext.__doc__ | |
660 |
|
660 | |||
661 | if hasattr(path.path, "splitunc"): |
|
661 | if hasattr(path.path, "splitunc"): | |
662 | def splitunc(self): |
|
662 | def splitunc(self): | |
663 | (unc, rest) = path.path.splitunc(self) |
|
663 | (unc, rest) = path.path.splitunc(self) | |
664 | return (ifile(unc), rest) |
|
664 | return (ifile(unc), rest) | |
665 | splitunc.__doc__ = path.path.splitunc.__doc__ |
|
665 | splitunc.__doc__ = path.path.splitunc.__doc__ | |
666 |
|
666 | |||
667 | def _get_uncshare(self): |
|
667 | def _get_uncshare(self): | |
668 | unc, r = os.path.splitunc(self) |
|
668 | unc, r = os.path.splitunc(self) | |
669 | return ifile(unc) |
|
669 | return ifile(unc) | |
670 |
|
670 | |||
671 | uncshare = property( |
|
671 | uncshare = property( | |
672 | _get_uncshare, None, None, |
|
672 | _get_uncshare, None, None, | |
673 | """ The UNC mount point for this path. |
|
673 | """ The UNC mount point for this path. | |
674 | This is empty for paths on local drives. """) |
|
674 | This is empty for paths on local drives. """) | |
675 |
|
675 | |||
676 | def joinpath(self, *args): |
|
676 | def joinpath(self, *args): | |
677 | return ifile(path.path.joinpath(self, *args)) |
|
677 | return ifile(path.path.joinpath(self, *args)) | |
678 | joinpath.__doc__ = path.path.joinpath.__doc__ |
|
678 | joinpath.__doc__ = path.path.joinpath.__doc__ | |
679 |
|
679 | |||
680 | def splitall(self): |
|
680 | def splitall(self): | |
681 | return map(ifile, path.path.splitall(self)) |
|
681 | return map(ifile, path.path.splitall(self)) | |
682 | splitall.__doc__ = path.path.splitall.__doc__ |
|
682 | splitall.__doc__ = path.path.splitall.__doc__ | |
683 |
|
683 | |||
684 | def relpath(self): |
|
684 | def relpath(self): | |
685 | return ifile(path.path.relpath(self)) |
|
685 | return ifile(path.path.relpath(self)) | |
686 | relpath.__doc__ = path.path.relpath.__doc__ |
|
686 | relpath.__doc__ = path.path.relpath.__doc__ | |
687 |
|
687 | |||
688 | def relpathto(self, dest): |
|
688 | def relpathto(self, dest): | |
689 | return ifile(path.path.relpathto(self, dest)) |
|
689 | return ifile(path.path.relpathto(self, dest)) | |
690 | relpathto.__doc__ = path.path.relpathto.__doc__ |
|
690 | relpathto.__doc__ = path.path.relpathto.__doc__ | |
691 |
|
691 | |||
692 | def listdir(self, pattern=None): |
|
692 | def listdir(self, pattern=None): | |
693 | return [ifile(child) for child in path.path.listdir(self, pattern)] |
|
693 | return [ifile(child) for child in path.path.listdir(self, pattern)] | |
694 | listdir.__doc__ = path.path.listdir.__doc__ |
|
694 | listdir.__doc__ = path.path.listdir.__doc__ | |
695 |
|
695 | |||
696 | def dirs(self, pattern=None): |
|
696 | def dirs(self, pattern=None): | |
697 | return [ifile(child) for child in path.path.dirs(self, pattern)] |
|
697 | return [ifile(child) for child in path.path.dirs(self, pattern)] | |
698 | dirs.__doc__ = path.path.dirs.__doc__ |
|
698 | dirs.__doc__ = path.path.dirs.__doc__ | |
699 |
|
699 | |||
700 | def files(self, pattern=None): |
|
700 | def files(self, pattern=None): | |
701 | return [ifile(child) for child in path.path.files(self, pattern)] |
|
701 | return [ifile(child) for child in path.path.files(self, pattern)] | |
702 | files.__doc__ = path.path.files.__doc__ |
|
702 | files.__doc__ = path.path.files.__doc__ | |
703 |
|
703 | |||
704 | def walk(self, pattern=None): |
|
704 | def walk(self, pattern=None): | |
705 | for child in path.path.walk(self, pattern): |
|
705 | for child in path.path.walk(self, pattern): | |
706 | yield ifile(child) |
|
706 | yield ifile(child) | |
707 | walk.__doc__ = path.path.walk.__doc__ |
|
707 | walk.__doc__ = path.path.walk.__doc__ | |
708 |
|
708 | |||
709 | def walkdirs(self, pattern=None): |
|
709 | def walkdirs(self, pattern=None): | |
710 | for child in path.path.walkdirs(self, pattern): |
|
710 | for child in path.path.walkdirs(self, pattern): | |
711 | yield ifile(child) |
|
711 | yield ifile(child) | |
712 | walkdirs.__doc__ = path.path.walkdirs.__doc__ |
|
712 | walkdirs.__doc__ = path.path.walkdirs.__doc__ | |
713 |
|
713 | |||
714 | def walkfiles(self, pattern=None): |
|
714 | def walkfiles(self, pattern=None): | |
715 | for child in path.path.walkfiles(self, pattern): |
|
715 | for child in path.path.walkfiles(self, pattern): | |
716 | yield ifile(child) |
|
716 | yield ifile(child) | |
717 | walkfiles.__doc__ = path.path.walkfiles.__doc__ |
|
717 | walkfiles.__doc__ = path.path.walkfiles.__doc__ | |
718 |
|
718 | |||
719 | def glob(self, pattern): |
|
719 | def glob(self, pattern): | |
720 | return map(ifile, path.path.glob(self, pattern)) |
|
720 | return map(ifile, path.path.glob(self, pattern)) | |
721 | glob.__doc__ = path.path.glob.__doc__ |
|
721 | glob.__doc__ = path.path.glob.__doc__ | |
722 |
|
722 | |||
723 | if hasattr(os, 'readlink'): |
|
723 | if hasattr(os, 'readlink'): | |
724 | def readlink(self): |
|
724 | def readlink(self): | |
725 | return ifile(path.path.readlink(self)) |
|
725 | return ifile(path.path.readlink(self)) | |
726 | readlink.__doc__ = path.path.readlink.__doc__ |
|
726 | readlink.__doc__ = path.path.readlink.__doc__ | |
727 |
|
727 | |||
728 | def readlinkabs(self): |
|
728 | def readlinkabs(self): | |
729 | return ifile(path.path.readlinkabs(self)) |
|
729 | return ifile(path.path.readlinkabs(self)) | |
730 | readlinkabs.__doc__ = path.path.readlinkabs.__doc__ |
|
730 | readlinkabs.__doc__ = path.path.readlinkabs.__doc__ | |
731 |
|
731 | |||
732 | def getmode(self): |
|
732 | def getmode(self): | |
733 | return self.stat().st_mode |
|
733 | return self.stat().st_mode | |
734 | mode = property(getmode, None, None, "Access mode") |
|
734 | mode = property(getmode, None, None, "Access mode") | |
735 |
|
735 | |||
736 | def gettype(self): |
|
736 | def gettype(self): | |
737 | data = [ |
|
737 | data = [ | |
738 | (stat.S_ISREG, "file"), |
|
738 | (stat.S_ISREG, "file"), | |
739 | (stat.S_ISDIR, "dir"), |
|
739 | (stat.S_ISDIR, "dir"), | |
740 | (stat.S_ISCHR, "chardev"), |
|
740 | (stat.S_ISCHR, "chardev"), | |
741 | (stat.S_ISBLK, "blockdev"), |
|
741 | (stat.S_ISBLK, "blockdev"), | |
742 | (stat.S_ISFIFO, "fifo"), |
|
742 | (stat.S_ISFIFO, "fifo"), | |
743 | (stat.S_ISLNK, "symlink"), |
|
743 | (stat.S_ISLNK, "symlink"), | |
744 | (stat.S_ISSOCK,"socket"), |
|
744 | (stat.S_ISSOCK,"socket"), | |
745 | ] |
|
745 | ] | |
746 | lstat = self.lstat() |
|
746 | lstat = self.lstat() | |
747 | if lstat is not None: |
|
747 | if lstat is not None: | |
748 | types = set([text for (func, text) in data if func(lstat.st_mode)]) |
|
748 | types = set([text for (func, text) in data if func(lstat.st_mode)]) | |
749 | else: |
|
749 | else: | |
750 | types = set() |
|
750 | types = set() | |
751 | m = self.mode |
|
751 | m = self.mode | |
752 | types.update([text for (func, text) in data if func(m)]) |
|
752 | types.update([text for (func, text) in data if func(m)]) | |
753 | return ", ".join(types) |
|
753 | return ", ".join(types) | |
754 | type = property(gettype, None, None, "file type (file, directory, link, etc.)") |
|
754 | type = property(gettype, None, None, "file type (file, directory, link, etc.)") | |
755 |
|
755 | |||
756 | def getmodestr(self): |
|
756 | def getmodestr(self): | |
757 | m = self.mode |
|
757 | m = self.mode | |
758 | data = [ |
|
758 | data = [ | |
759 | (stat.S_IRUSR, "-r"), |
|
759 | (stat.S_IRUSR, "-r"), | |
760 | (stat.S_IWUSR, "-w"), |
|
760 | (stat.S_IWUSR, "-w"), | |
761 | (stat.S_IXUSR, "-x"), |
|
761 | (stat.S_IXUSR, "-x"), | |
762 | (stat.S_IRGRP, "-r"), |
|
762 | (stat.S_IRGRP, "-r"), | |
763 | (stat.S_IWGRP, "-w"), |
|
763 | (stat.S_IWGRP, "-w"), | |
764 | (stat.S_IXGRP, "-x"), |
|
764 | (stat.S_IXGRP, "-x"), | |
765 | (stat.S_IROTH, "-r"), |
|
765 | (stat.S_IROTH, "-r"), | |
766 | (stat.S_IWOTH, "-w"), |
|
766 | (stat.S_IWOTH, "-w"), | |
767 | (stat.S_IXOTH, "-x"), |
|
767 | (stat.S_IXOTH, "-x"), | |
768 | ] |
|
768 | ] | |
769 | return "".join([text[bool(m&bit)] for (bit, text) in data]) |
|
769 | return "".join([text[bool(m&bit)] for (bit, text) in data]) | |
770 |
|
770 | |||
771 | modestr = property(getmodestr, None, None, "Access mode as string") |
|
771 | modestr = property(getmodestr, None, None, "Access mode as string") | |
772 |
|
772 | |||
773 | def getblocks(self): |
|
773 | def getblocks(self): | |
774 | return self.stat().st_blocks |
|
774 | return self.stat().st_blocks | |
775 | blocks = property(getblocks, None, None, "File size in blocks") |
|
775 | blocks = property(getblocks, None, None, "File size in blocks") | |
776 |
|
776 | |||
777 | def getblksize(self): |
|
777 | def getblksize(self): | |
778 | return self.stat().st_blksize |
|
778 | return self.stat().st_blksize | |
779 | blksize = property(getblksize, None, None, "Filesystem block size") |
|
779 | blksize = property(getblksize, None, None, "Filesystem block size") | |
780 |
|
780 | |||
781 | def getdev(self): |
|
781 | def getdev(self): | |
782 | return self.stat().st_dev |
|
782 | return self.stat().st_dev | |
783 | dev = property(getdev) |
|
783 | dev = property(getdev) | |
784 |
|
784 | |||
785 | def getnlink(self): |
|
785 | def getnlink(self): | |
786 | return self.stat().st_nlink |
|
786 | return self.stat().st_nlink | |
787 | nlink = property(getnlink, None, None, "Number of links") |
|
787 | nlink = property(getnlink, None, None, "Number of links") | |
788 |
|
788 | |||
789 | def getuid(self): |
|
789 | def getuid(self): | |
790 | return self.stat().st_uid |
|
790 | return self.stat().st_uid | |
791 | uid = property(getuid, None, None, "User id of file owner") |
|
791 | uid = property(getuid, None, None, "User id of file owner") | |
792 |
|
792 | |||
793 | def getgid(self): |
|
793 | def getgid(self): | |
794 | return self.stat().st_gid |
|
794 | return self.stat().st_gid | |
795 | gid = property(getgid, None, None, "Group id of file owner") |
|
795 | gid = property(getgid, None, None, "Group id of file owner") | |
796 |
|
796 | |||
797 | def getowner(self): |
|
797 | def getowner(self): | |
798 | stat = self.stat() |
|
798 | stat = self.stat() | |
799 | try: |
|
799 | try: | |
800 | return pwd.getpwuid(stat.st_uid).pw_name |
|
800 | return pwd.getpwuid(stat.st_uid).pw_name | |
801 | except KeyError: |
|
801 | except KeyError: | |
802 | return stat.st_uid |
|
802 | return stat.st_uid | |
803 | owner = property(getowner, None, None, "Owner name (or id)") |
|
803 | owner = property(getowner, None, None, "Owner name (or id)") | |
804 |
|
804 | |||
805 | def getgroup(self): |
|
805 | def getgroup(self): | |
806 | stat = self.stat() |
|
806 | stat = self.stat() | |
807 | try: |
|
807 | try: | |
808 | return grp.getgrgid(stat.st_gid).gr_name |
|
808 | return grp.getgrgid(stat.st_gid).gr_name | |
809 | except KeyError: |
|
809 | except KeyError: | |
810 | return stat.st_gid |
|
810 | return stat.st_gid | |
811 | group = property(getgroup, None, None, "Group name (or id)") |
|
811 | group = property(getgroup, None, None, "Group name (or id)") | |
812 |
|
812 | |||
813 | def getadate(self): |
|
813 | def getadate(self): | |
814 | return datetime.datetime.utcfromtimestamp(self.atime) |
|
814 | return datetime.datetime.utcfromtimestamp(self.atime) | |
815 | adate = property(getadate, None, None, "Access date") |
|
815 | adate = property(getadate, None, None, "Access date") | |
816 |
|
816 | |||
817 | def getcdate(self): |
|
817 | def getcdate(self): | |
818 | return datetime.datetime.utcfromtimestamp(self.ctime) |
|
818 | return datetime.datetime.utcfromtimestamp(self.ctime) | |
819 | cdate = property(getcdate, None, None, "Creation date") |
|
819 | cdate = property(getcdate, None, None, "Creation date") | |
820 |
|
820 | |||
821 | def getmdate(self): |
|
821 | def getmdate(self): | |
822 | return datetime.datetime.utcfromtimestamp(self.mtime) |
|
822 | return datetime.datetime.utcfromtimestamp(self.mtime) | |
823 | mdate = property(getmdate, None, None, "Modification date") |
|
823 | mdate = property(getmdate, None, None, "Modification date") | |
824 |
|
824 | |||
825 | def getmimetype(self): |
|
825 | def getmimetype(self): | |
826 | return mimetypes.guess_type(self.basename())[0] |
|
826 | return mimetypes.guess_type(self.basename())[0] | |
827 | mimetype = property(getmimetype, None, None, "MIME type") |
|
827 | mimetype = property(getmimetype, None, None, "MIME type") | |
828 |
|
828 | |||
829 | def getencoding(self): |
|
829 | def getencoding(self): | |
830 | return mimetypes.guess_type(self.basename())[1] |
|
830 | return mimetypes.guess_type(self.basename())[1] | |
831 | encoding = property(getencoding, None, None, "Compression") |
|
831 | encoding = property(getencoding, None, None, "Compression") | |
832 |
|
832 | |||
833 | def __repr__(self): |
|
833 | def __repr__(self): | |
834 | return "ifile(%s)" % path._base.__repr__(self) |
|
834 | return "ifile(%s)" % path._base.__repr__(self) | |
835 |
|
835 | |||
836 | defaultattrs = (None, "type", "size", "modestr", "owner", "group", "mdate") |
|
836 | defaultattrs = (None, "type", "size", "modestr", "owner", "group", "mdate") | |
837 |
|
837 | |||
838 | def __xattrs__(self, mode): |
|
838 | def __xattrs__(self, mode): | |
839 | if mode == "detail": |
|
839 | if mode == "detail": | |
840 | return ( |
|
840 | return ( | |
841 | "name", "basename()", "abspath()", "realpath()", |
|
841 | "name", "basename()", "abspath()", "realpath()", | |
842 | "type", "mode", "modestr", "stat()", "lstat()", |
|
842 | "type", "mode", "modestr", "stat()", "lstat()", | |
843 | "uid", "gid", "owner", "group", "dev", "nlink", |
|
843 | "uid", "gid", "owner", "group", "dev", "nlink", | |
844 | "ctime", "mtime", "atime", "cdate", "mdate", "adate", |
|
844 | "ctime", "mtime", "atime", "cdate", "mdate", "adate", | |
845 | "size", "blocks", "blksize", "isdir()", "islink()", |
|
845 | "size", "blocks", "blksize", "isdir()", "islink()", | |
846 | "mimetype", "encoding" |
|
846 | "mimetype", "encoding" | |
847 | ) |
|
847 | ) | |
848 | return self.defaultattrs |
|
848 | return self.defaultattrs | |
849 |
|
849 | |||
850 | def __xrepr__(self, mode): |
|
850 | def __xrepr__(self, mode): | |
851 | try: |
|
851 | try: | |
852 | if self.isdir(): |
|
852 | if self.isdir(): | |
853 | name = "idir" |
|
853 | name = "idir" | |
854 | style = astyle.style_dir |
|
854 | style = astyle.style_dir | |
855 | else: |
|
855 | else: | |
856 | name = "ifile" |
|
856 | name = "ifile" | |
857 | style = astyle.style_file |
|
857 | style = astyle.style_file | |
858 | except IOError: |
|
858 | except IOError: | |
859 | name = "ifile" |
|
859 | name = "ifile" | |
860 | style = astyle.style_default |
|
860 | style = astyle.style_default | |
861 | if mode == "cell" or mode in "header" or mode == "footer": |
|
861 | if mode == "cell" or mode in "header" or mode == "footer": | |
862 | abspath = repr(path._base(self.normpath())) |
|
862 | abspath = repr(path._base(self.normpath())) | |
863 | if abspath.startswith("u"): |
|
863 | if abspath.startswith("u"): | |
864 | abspath = abspath[2:-1] |
|
864 | abspath = abspath[2:-1] | |
865 | else: |
|
865 | else: | |
866 | abspath = abspath[1:-1] |
|
866 | abspath = abspath[1:-1] | |
867 | if mode == "cell": |
|
867 | if mode == "cell": | |
868 | yield (style, abspath) |
|
868 | yield (style, abspath) | |
869 | else: |
|
869 | else: | |
870 | yield (style, "%s(%s)" % (name, abspath)) |
|
870 | yield (style, "%s(%s)" % (name, abspath)) | |
871 | else: |
|
871 | else: | |
872 | yield (style, repr(self)) |
|
872 | yield (style, repr(self)) | |
873 |
|
873 | |||
874 | def __xiter__(self, mode): |
|
874 | def __xiter__(self, mode): | |
875 | if self.isdir(): |
|
875 | if self.isdir(): | |
876 | yield iparentdir(self / os.pardir) |
|
876 | yield iparentdir(self / os.pardir) | |
877 | for child in sorted(self.listdir()): |
|
877 | for child in sorted(self.listdir()): | |
878 | yield child |
|
878 | yield child | |
879 | else: |
|
879 | else: | |
880 | f = self.open("rb") |
|
880 | f = self.open("rb") | |
881 | for line in f: |
|
881 | for line in f: | |
882 | yield line |
|
882 | yield line | |
883 | f.close() |
|
883 | f.close() | |
884 |
|
884 | |||
885 |
|
885 | |||
886 | class iparentdir(ifile): |
|
886 | class iparentdir(ifile): | |
887 | def __xrepr__(self, mode): |
|
887 | def __xrepr__(self, mode): | |
888 | if mode == "cell": |
|
888 | if mode == "cell": | |
889 | yield (astyle.style_dir, os.pardir) |
|
889 | yield (astyle.style_dir, os.pardir) | |
890 | else: |
|
890 | else: | |
891 | for part in ifile.__xrepr__(self, mode): |
|
891 | for part in ifile.__xrepr__(self, mode): | |
892 | yield part |
|
892 | yield part | |
893 |
|
893 | |||
894 |
|
894 | |||
895 | class ils(Table): |
|
895 | class ils(Table): | |
896 | """ |
|
896 | """ | |
897 | List the current (or a specific) directory. |
|
897 | List the current (or a specific) directory. | |
898 |
|
898 | |||
899 | Examples: |
|
899 | Examples: | |
900 |
|
900 | |||
901 | >>> ils |
|
901 | >>> ils | |
902 | >>> ils("/usr/local/lib/python2.4") |
|
902 | >>> ils("/usr/local/lib/python2.4") | |
903 | >>> ils("~") |
|
903 | >>> ils("~") | |
904 | """ |
|
904 | """ | |
905 | def __init__(self, base=os.curdir): |
|
905 | def __init__(self, base=os.curdir): | |
906 | self.base = os.path.expanduser(base) |
|
906 | self.base = os.path.expanduser(base) | |
907 |
|
907 | |||
908 | def __xiter__(self, mode): |
|
908 | def __xiter__(self, mode): | |
909 | return xiter(ifile(self.base), mode) |
|
909 | return xiter(ifile(self.base), mode) | |
910 |
|
910 | |||
911 | def __xrepr__(self, mode): |
|
911 | def __xrepr__(self, mode): | |
912 | return ifile(self.base).__xrepr__(mode) |
|
912 | return ifile(self.base).__xrepr__(mode) | |
913 |
|
913 | |||
914 | def __repr__(self): |
|
914 | def __repr__(self): | |
915 | return "%s.%s(%r)" % \ |
|
915 | return "%s.%s(%r)" % \ | |
916 | (self.__class__.__module__, self.__class__.__name__, self.base) |
|
916 | (self.__class__.__module__, self.__class__.__name__, self.base) | |
917 |
|
917 | |||
918 |
|
918 | |||
919 | class iglob(Table): |
|
919 | class iglob(Table): | |
920 | """ |
|
920 | """ | |
921 | List all files and directories matching a specified pattern. |
|
921 | List all files and directories matching a specified pattern. | |
922 | (See ``glob.glob()`` for more info.). |
|
922 | (See ``glob.glob()`` for more info.). | |
923 |
|
923 | |||
924 | Examples: |
|
924 | Examples: | |
925 |
|
925 | |||
926 | >>> iglob("*.py") |
|
926 | >>> iglob("*.py") | |
927 | """ |
|
927 | """ | |
928 | def __init__(self, glob): |
|
928 | def __init__(self, glob): | |
929 | self.glob = glob |
|
929 | self.glob = glob | |
930 |
|
930 | |||
931 | def __xiter__(self, mode): |
|
931 | def __xiter__(self, mode): | |
932 | for name in glob.glob(self.glob): |
|
932 | for name in glob.glob(self.glob): | |
933 | yield ifile(name) |
|
933 | yield ifile(name) | |
934 |
|
934 | |||
935 | def __xrepr__(self, mode): |
|
935 | def __xrepr__(self, mode): | |
936 | if mode == "header" or mode == "footer" or mode == "cell": |
|
936 | if mode == "header" or mode == "footer" or mode == "cell": | |
937 | yield (astyle.style_default, |
|
937 | yield (astyle.style_default, | |
938 | "%s(%r)" % (self.__class__.__name__, self.glob)) |
|
938 | "%s(%r)" % (self.__class__.__name__, self.glob)) | |
939 | else: |
|
939 | else: | |
940 | yield (astyle.style_default, repr(self)) |
|
940 | yield (astyle.style_default, repr(self)) | |
941 |
|
941 | |||
942 | def __repr__(self): |
|
942 | def __repr__(self): | |
943 | return "%s.%s(%r)" % \ |
|
943 | return "%s.%s(%r)" % \ | |
944 | (self.__class__.__module__, self.__class__.__name__, self.glob) |
|
944 | (self.__class__.__module__, self.__class__.__name__, self.glob) | |
945 |
|
945 | |||
946 |
|
946 | |||
947 | class iwalk(Table): |
|
947 | class iwalk(Table): | |
948 | """ |
|
948 | """ | |
949 | List all files and directories in a directory and it's subdirectory. |
|
949 | List all files and directories in a directory and it's subdirectory. | |
950 |
|
950 | |||
951 | >>> iwalk |
|
951 | >>> iwalk | |
952 | >>> iwalk("/usr/local/lib/python2.4") |
|
952 | >>> iwalk("/usr/local/lib/python2.4") | |
953 | >>> iwalk("~") |
|
953 | >>> iwalk("~") | |
954 | """ |
|
954 | """ | |
955 | def __init__(self, base=os.curdir, dirs=True, files=True): |
|
955 | def __init__(self, base=os.curdir, dirs=True, files=True): | |
956 | self.base = os.path.expanduser(base) |
|
956 | self.base = os.path.expanduser(base) | |
957 | self.dirs = dirs |
|
957 | self.dirs = dirs | |
958 | self.files = files |
|
958 | self.files = files | |
959 |
|
959 | |||
960 | def __xiter__(self, mode): |
|
960 | def __xiter__(self, mode): | |
961 | for (dirpath, dirnames, filenames) in os.walk(self.base): |
|
961 | for (dirpath, dirnames, filenames) in os.walk(self.base): | |
962 | if self.dirs: |
|
962 | if self.dirs: | |
963 | for name in sorted(dirnames): |
|
963 | for name in sorted(dirnames): | |
964 | yield ifile(os.path.join(dirpath, name)) |
|
964 | yield ifile(os.path.join(dirpath, name)) | |
965 | if self.files: |
|
965 | if self.files: | |
966 | for name in sorted(filenames): |
|
966 | for name in sorted(filenames): | |
967 | yield ifile(os.path.join(dirpath, name)) |
|
967 | yield ifile(os.path.join(dirpath, name)) | |
968 |
|
968 | |||
969 | def __xrepr__(self, mode): |
|
969 | def __xrepr__(self, mode): | |
970 | if mode == "header" or mode == "footer" or mode == "cell": |
|
970 | if mode == "header" or mode == "footer" or mode == "cell": | |
971 | yield (astyle.style_default, |
|
971 | yield (astyle.style_default, | |
972 | "%s(%r)" % (self.__class__.__name__, self.base)) |
|
972 | "%s(%r)" % (self.__class__.__name__, self.base)) | |
973 | else: |
|
973 | else: | |
974 | yield (astyle.style_default, repr(self)) |
|
974 | yield (astyle.style_default, repr(self)) | |
975 |
|
975 | |||
976 | def __repr__(self): |
|
976 | def __repr__(self): | |
977 | return "%s.%s(%r)" % \ |
|
977 | return "%s.%s(%r)" % \ | |
978 | (self.__class__.__module__, self.__class__.__name__, self.base) |
|
978 | (self.__class__.__module__, self.__class__.__name__, self.base) | |
979 |
|
979 | |||
980 |
|
980 | |||
981 | class ipwdentry(object): |
|
981 | class ipwdentry(object): | |
982 | """ |
|
982 | """ | |
983 | ``ipwdentry`` objects encapsulate entries in the Unix user account and |
|
983 | ``ipwdentry`` objects encapsulate entries in the Unix user account and | |
984 | password database. |
|
984 | password database. | |
985 | """ |
|
985 | """ | |
986 | def __init__(self, id): |
|
986 | def __init__(self, id): | |
987 | self._id = id |
|
987 | self._id = id | |
988 | self._entry = None |
|
988 | self._entry = None | |
989 |
|
989 | |||
990 | def _getentry(self): |
|
990 | def _getentry(self): | |
991 | if self._entry is None: |
|
991 | if self._entry is None: | |
992 | if isinstance(self._id, basestring): |
|
992 | if isinstance(self._id, basestring): | |
993 | self._entry = pwd.getpwnam(self._id) |
|
993 | self._entry = pwd.getpwnam(self._id) | |
994 | else: |
|
994 | else: | |
995 | self._entry = pwd.getpwuid(self._id) |
|
995 | self._entry = pwd.getpwuid(self._id) | |
996 | return self._entry |
|
996 | return self._entry | |
997 |
|
997 | |||
998 | def getname(self): |
|
998 | def getname(self): | |
999 | if isinstance(self._id, basestring): |
|
999 | if isinstance(self._id, basestring): | |
1000 | return self._id |
|
1000 | return self._id | |
1001 | else: |
|
1001 | else: | |
1002 | return self._getentry().pw_name |
|
1002 | return self._getentry().pw_name | |
1003 | name = property(getname, None, None, "User name") |
|
1003 | name = property(getname, None, None, "User name") | |
1004 |
|
1004 | |||
1005 | def getpasswd(self): |
|
1005 | def getpasswd(self): | |
1006 | return self._getentry().pw_passwd |
|
1006 | return self._getentry().pw_passwd | |
1007 | passwd = property(getpasswd, None, None, "Password") |
|
1007 | passwd = property(getpasswd, None, None, "Password") | |
1008 |
|
1008 | |||
1009 | def getuid(self): |
|
1009 | def getuid(self): | |
1010 | if isinstance(self._id, basestring): |
|
1010 | if isinstance(self._id, basestring): | |
1011 | return self._getentry().pw_uid |
|
1011 | return self._getentry().pw_uid | |
1012 | else: |
|
1012 | else: | |
1013 | return self._id |
|
1013 | return self._id | |
1014 | uid = property(getuid, None, None, "User id") |
|
1014 | uid = property(getuid, None, None, "User id") | |
1015 |
|
1015 | |||
1016 | def getgid(self): |
|
1016 | def getgid(self): | |
1017 | return self._getentry().pw_gid |
|
1017 | return self._getentry().pw_gid | |
1018 | gid = property(getgid, None, None, "Primary group id") |
|
1018 | gid = property(getgid, None, None, "Primary group id") | |
1019 |
|
1019 | |||
1020 | def getgroup(self): |
|
1020 | def getgroup(self): | |
1021 | return igrpentry(self.gid) |
|
1021 | return igrpentry(self.gid) | |
1022 | group = property(getgroup, None, None, "Group") |
|
1022 | group = property(getgroup, None, None, "Group") | |
1023 |
|
1023 | |||
1024 | def getgecos(self): |
|
1024 | def getgecos(self): | |
1025 | return self._getentry().pw_gecos |
|
1025 | return self._getentry().pw_gecos | |
1026 | gecos = property(getgecos, None, None, "Information (e.g. full user name)") |
|
1026 | gecos = property(getgecos, None, None, "Information (e.g. full user name)") | |
1027 |
|
1027 | |||
1028 | def getdir(self): |
|
1028 | def getdir(self): | |
1029 | return self._getentry().pw_dir |
|
1029 | return self._getentry().pw_dir | |
1030 | dir = property(getdir, None, None, "$HOME directory") |
|
1030 | dir = property(getdir, None, None, "$HOME directory") | |
1031 |
|
1031 | |||
1032 | def getshell(self): |
|
1032 | def getshell(self): | |
1033 | return self._getentry().pw_shell |
|
1033 | return self._getentry().pw_shell | |
1034 | shell = property(getshell, None, None, "Login shell") |
|
1034 | shell = property(getshell, None, None, "Login shell") | |
1035 |
|
1035 | |||
1036 | def __xattrs__(self, mode): |
|
1036 | def __xattrs__(self, mode): | |
1037 | return ("name", "passwd", "uid", "gid", "gecos", "dir", "shell") |
|
1037 | return ("name", "passwd", "uid", "gid", "gecos", "dir", "shell") | |
1038 |
|
1038 | |||
1039 | def __repr__(self): |
|
1039 | def __repr__(self): | |
1040 | return "%s.%s(%r)" % \ |
|
1040 | return "%s.%s(%r)" % \ | |
1041 | (self.__class__.__module__, self.__class__.__name__, self._id) |
|
1041 | (self.__class__.__module__, self.__class__.__name__, self._id) | |
1042 |
|
1042 | |||
1043 |
|
1043 | |||
1044 | class ipwd(Table): |
|
1044 | class ipwd(Table): | |
1045 | """ |
|
1045 | """ | |
1046 | List all entries in the Unix user account and password database. |
|
1046 | List all entries in the Unix user account and password database. | |
1047 |
|
1047 | |||
1048 | Example: |
|
1048 | Example: | |
1049 |
|
1049 | |||
1050 | >>> ipwd | isort("uid") |
|
1050 | >>> ipwd | isort("uid") | |
1051 | """ |
|
1051 | """ | |
1052 | def __iter__(self): |
|
1052 | def __iter__(self): | |
1053 | for entry in pwd.getpwall(): |
|
1053 | for entry in pwd.getpwall(): | |
1054 | yield ipwdentry(entry.pw_name) |
|
1054 | yield ipwdentry(entry.pw_name) | |
1055 |
|
1055 | |||
1056 | def __xrepr__(self, mode): |
|
1056 | def __xrepr__(self, mode): | |
1057 | if mode == "header" or mode == "footer" or mode == "cell": |
|
1057 | if mode == "header" or mode == "footer" or mode == "cell": | |
1058 | yield (astyle.style_default, "%s()" % self.__class__.__name__) |
|
1058 | yield (astyle.style_default, "%s()" % self.__class__.__name__) | |
1059 | else: |
|
1059 | else: | |
1060 | yield (astyle.style_default, repr(self)) |
|
1060 | yield (astyle.style_default, repr(self)) | |
1061 |
|
1061 | |||
1062 |
|
1062 | |||
1063 | class igrpentry(object): |
|
1063 | class igrpentry(object): | |
1064 | """ |
|
1064 | """ | |
1065 | ``igrpentry`` objects encapsulate entries in the Unix group database. |
|
1065 | ``igrpentry`` objects encapsulate entries in the Unix group database. | |
1066 | """ |
|
1066 | """ | |
1067 | def __init__(self, id): |
|
1067 | def __init__(self, id): | |
1068 | self._id = id |
|
1068 | self._id = id | |
1069 | self._entry = None |
|
1069 | self._entry = None | |
1070 |
|
1070 | |||
1071 | def _getentry(self): |
|
1071 | def _getentry(self): | |
1072 | if self._entry is None: |
|
1072 | if self._entry is None: | |
1073 | if isinstance(self._id, basestring): |
|
1073 | if isinstance(self._id, basestring): | |
1074 | self._entry = grp.getgrnam(self._id) |
|
1074 | self._entry = grp.getgrnam(self._id) | |
1075 | else: |
|
1075 | else: | |
1076 | self._entry = grp.getgrgid(self._id) |
|
1076 | self._entry = grp.getgrgid(self._id) | |
1077 | return self._entry |
|
1077 | return self._entry | |
1078 |
|
1078 | |||
1079 | def getname(self): |
|
1079 | def getname(self): | |
1080 | if isinstance(self._id, basestring): |
|
1080 | if isinstance(self._id, basestring): | |
1081 | return self._id |
|
1081 | return self._id | |
1082 | else: |
|
1082 | else: | |
1083 | return self._getentry().gr_name |
|
1083 | return self._getentry().gr_name | |
1084 | name = property(getname, None, None, "Group name") |
|
1084 | name = property(getname, None, None, "Group name") | |
1085 |
|
1085 | |||
1086 | def getpasswd(self): |
|
1086 | def getpasswd(self): | |
1087 | return self._getentry().gr_passwd |
|
1087 | return self._getentry().gr_passwd | |
1088 | passwd = property(getpasswd, None, None, "Password") |
|
1088 | passwd = property(getpasswd, None, None, "Password") | |
1089 |
|
1089 | |||
1090 | def getgid(self): |
|
1090 | def getgid(self): | |
1091 | if isinstance(self._id, basestring): |
|
1091 | if isinstance(self._id, basestring): | |
1092 | return self._getentry().gr_gid |
|
1092 | return self._getentry().gr_gid | |
1093 | else: |
|
1093 | else: | |
1094 | return self._id |
|
1094 | return self._id | |
1095 | gid = property(getgid, None, None, "Group id") |
|
1095 | gid = property(getgid, None, None, "Group id") | |
1096 |
|
1096 | |||
1097 | def getmem(self): |
|
1097 | def getmem(self): | |
1098 | return self._getentry().gr_mem |
|
1098 | return self._getentry().gr_mem | |
1099 | mem = property(getmem, None, None, "Members") |
|
1099 | mem = property(getmem, None, None, "Members") | |
1100 |
|
1100 | |||
1101 | def __xattrs__(self, mode): |
|
1101 | def __xattrs__(self, mode): | |
1102 | return ("name", "passwd", "gid", "mem") |
|
1102 | return ("name", "passwd", "gid", "mem") | |
1103 |
|
1103 | |||
1104 | def __xrepr__(self, mode): |
|
1104 | def __xrepr__(self, mode): | |
1105 | if mode == "header" or mode == "footer" or mode == "cell": |
|
1105 | if mode == "header" or mode == "footer" or mode == "cell": | |
1106 | yield (astyle.style_default, "group ") |
|
1106 | yield (astyle.style_default, "group ") | |
1107 | try: |
|
1107 | try: | |
1108 | yield (astyle.style_default, self.name) |
|
1108 | yield (astyle.style_default, self.name) | |
1109 | except KeyError: |
|
1109 | except KeyError: | |
1110 | if isinstance(self._id, basestring): |
|
1110 | if isinstance(self._id, basestring): | |
1111 | yield (astyle.style_default, self.name_id) |
|
1111 | yield (astyle.style_default, self.name_id) | |
1112 | else: |
|
1112 | else: | |
1113 | yield (astyle.style_type_number, str(self._id)) |
|
1113 | yield (astyle.style_type_number, str(self._id)) | |
1114 | else: |
|
1114 | else: | |
1115 | yield (astyle.style_default, repr(self)) |
|
1115 | yield (astyle.style_default, repr(self)) | |
1116 |
|
1116 | |||
1117 | def __xiter__(self, mode): |
|
1117 | def __xiter__(self, mode): | |
1118 | for member in self.mem: |
|
1118 | for member in self.mem: | |
1119 | yield ipwdentry(member) |
|
1119 | yield ipwdentry(member) | |
1120 |
|
1120 | |||
1121 | def __repr__(self): |
|
1121 | def __repr__(self): | |
1122 | return "%s.%s(%r)" % \ |
|
1122 | return "%s.%s(%r)" % \ | |
1123 | (self.__class__.__module__, self.__class__.__name__, self._id) |
|
1123 | (self.__class__.__module__, self.__class__.__name__, self._id) | |
1124 |
|
1124 | |||
1125 |
|
1125 | |||
1126 | class igrp(Table): |
|
1126 | class igrp(Table): | |
1127 | """ |
|
1127 | """ | |
1128 | This ``Table`` lists all entries in the Unix group database. |
|
1128 | This ``Table`` lists all entries in the Unix group database. | |
1129 | """ |
|
1129 | """ | |
1130 | def __xiter__(self, mode): |
|
1130 | def __xiter__(self, mode): | |
1131 | for entry in grp.getgrall(): |
|
1131 | for entry in grp.getgrall(): | |
1132 | yield igrpentry(entry.gr_name) |
|
1132 | yield igrpentry(entry.gr_name) | |
1133 |
|
1133 | |||
1134 | def __xrepr__(self, mode): |
|
1134 | def __xrepr__(self, mode): | |
1135 | if mode == "header" or mode == "footer": |
|
1135 | if mode == "header" or mode == "footer": | |
1136 | yield (astyle.style_default, "%s()" % self.__class__.__name__) |
|
1136 | yield (astyle.style_default, "%s()" % self.__class__.__name__) | |
1137 | else: |
|
1137 | else: | |
1138 | yield (astyle.style_default, repr(self)) |
|
1138 | yield (astyle.style_default, repr(self)) | |
1139 |
|
1139 | |||
1140 |
|
1140 | |||
1141 | class Fields(object): |
|
1141 | class Fields(object): | |
1142 | def __init__(self, fieldnames, **fields): |
|
1142 | def __init__(self, fieldnames, **fields): | |
1143 | self.__fieldnames = fieldnames |
|
1143 | self.__fieldnames = fieldnames | |
1144 | for (key, value) in fields.iteritems(): |
|
1144 | for (key, value) in fields.iteritems(): | |
1145 | setattr(self, key, value) |
|
1145 | setattr(self, key, value) | |
1146 |
|
1146 | |||
1147 | def __xattrs__(self, mode): |
|
1147 | def __xattrs__(self, mode): | |
1148 | return self.__fieldnames |
|
1148 | return self.__fieldnames | |
1149 |
|
1149 | |||
1150 | def __xrepr__(self, mode): |
|
1150 | def __xrepr__(self, mode): | |
1151 | yield (-1, False) |
|
1151 | yield (-1, False) | |
1152 | if mode == "header" or mode == "cell": |
|
1152 | if mode == "header" or mode == "cell": | |
1153 | yield (astyle.style_default, self.__class__.__name__) |
|
1153 | yield (astyle.style_default, self.__class__.__name__) | |
1154 | yield (astyle.style_default, "(") |
|
1154 | yield (astyle.style_default, "(") | |
1155 | for (i, f) in enumerate(self.__fieldnames): |
|
1155 | for (i, f) in enumerate(self.__fieldnames): | |
1156 | if i: |
|
1156 | if i: | |
1157 | yield (astyle.style_default, ", ") |
|
1157 | yield (astyle.style_default, ", ") | |
1158 | yield (astyle.style_default, f) |
|
1158 | yield (astyle.style_default, f) | |
1159 | yield (astyle.style_default, "=") |
|
1159 | yield (astyle.style_default, "=") | |
1160 | for part in xrepr(getattr(self, f), "default"): |
|
1160 | for part in xrepr(getattr(self, f), "default"): | |
1161 | yield part |
|
1161 | yield part | |
1162 | yield (astyle.style_default, ")") |
|
1162 | yield (astyle.style_default, ")") | |
1163 | elif mode == "footer": |
|
1163 | elif mode == "footer": | |
1164 | yield (astyle.style_default, self.__class__.__name__) |
|
1164 | yield (astyle.style_default, self.__class__.__name__) | |
1165 | yield (astyle.style_default, "(") |
|
1165 | yield (astyle.style_default, "(") | |
1166 | for (i, f) in enumerate(self.__fieldnames): |
|
1166 | for (i, f) in enumerate(self.__fieldnames): | |
1167 | if i: |
|
1167 | if i: | |
1168 | yield (astyle.style_default, ", ") |
|
1168 | yield (astyle.style_default, ", ") | |
1169 | yield (astyle.style_default, f) |
|
1169 | yield (astyle.style_default, f) | |
1170 | yield (astyle.style_default, ")") |
|
1170 | yield (astyle.style_default, ")") | |
1171 | else: |
|
1171 | else: | |
1172 | yield (astyle.style_default, repr(self)) |
|
1172 | yield (astyle.style_default, repr(self)) | |
1173 |
|
1173 | |||
1174 |
|
1174 | |||
1175 | class FieldTable(Table, list): |
|
1175 | class FieldTable(Table, list): | |
1176 | def __init__(self, *fields): |
|
1176 | def __init__(self, *fields): | |
1177 | Table.__init__(self) |
|
1177 | Table.__init__(self) | |
1178 | list.__init__(self) |
|
1178 | list.__init__(self) | |
1179 | self.fields = fields |
|
1179 | self.fields = fields | |
1180 |
|
1180 | |||
1181 | def add(self, **fields): |
|
1181 | def add(self, **fields): | |
1182 | self.append(Fields(self.fields, **fields)) |
|
1182 | self.append(Fields(self.fields, **fields)) | |
1183 |
|
1183 | |||
1184 | def __xiter__(self, mode): |
|
1184 | def __xiter__(self, mode): | |
1185 | return list.__iter__(self) |
|
1185 | return list.__iter__(self) | |
1186 |
|
1186 | |||
1187 | def __xrepr__(self, mode): |
|
1187 | def __xrepr__(self, mode): | |
1188 | yield (-1, False) |
|
1188 | yield (-1, False) | |
1189 | if mode == "header" or mode == "footer": |
|
1189 | if mode == "header" or mode == "footer": | |
1190 | yield (astyle.style_default, self.__class__.__name__) |
|
1190 | yield (astyle.style_default, self.__class__.__name__) | |
1191 | yield (astyle.style_default, "(") |
|
1191 | yield (astyle.style_default, "(") | |
1192 | for (i, f) in enumerate(self.__fieldnames): |
|
1192 | for (i, f) in enumerate(self.__fieldnames): | |
1193 | if i: |
|
1193 | if i: | |
1194 | yield (astyle.style_default, ", ") |
|
1194 | yield (astyle.style_default, ", ") | |
1195 | yield (astyle.style_default, f) |
|
1195 | yield (astyle.style_default, f) | |
1196 | yield (astyle.style_default, ")") |
|
1196 | yield (astyle.style_default, ")") | |
1197 | else: |
|
1197 | else: | |
1198 | yield (astyle.style_default, repr(self)) |
|
1198 | yield (astyle.style_default, repr(self)) | |
1199 |
|
1199 | |||
1200 | def __repr__(self): |
|
1200 | def __repr__(self): | |
1201 | return "<%s.%s object with fields=%r at 0x%x>" % \ |
|
1201 | return "<%s.%s object with fields=%r at 0x%x>" % \ | |
1202 | (self.__class__.__module__, self.__class__.__name__, |
|
1202 | (self.__class__.__module__, self.__class__.__name__, | |
1203 | ", ".join(map(repr, self.fields)), id(self)) |
|
1203 | ", ".join(map(repr, self.fields)), id(self)) | |
1204 |
|
1204 | |||
1205 |
|
1205 | |||
1206 | class List(list): |
|
1206 | class List(list): | |
1207 | def __xattrs__(self, mode): |
|
1207 | def __xattrs__(self, mode): | |
1208 | return xrange(len(self)) |
|
1208 | return xrange(len(self)) | |
1209 |
|
1209 | |||
1210 | def __xrepr__(self, mode): |
|
1210 | def __xrepr__(self, mode): | |
1211 | yield (-1, False) |
|
1211 | yield (-1, False) | |
1212 | if mode == "header" or mode == "cell" or mode == "footer" or mode == "default": |
|
1212 | if mode == "header" or mode == "cell" or mode == "footer" or mode == "default": | |
1213 | yield (astyle.style_default, self.__class__.__name__) |
|
1213 | yield (astyle.style_default, self.__class__.__name__) | |
1214 | yield (astyle.style_default, "(") |
|
1214 | yield (astyle.style_default, "(") | |
1215 | for (i, item) in enumerate(self): |
|
1215 | for (i, item) in enumerate(self): | |
1216 | if i: |
|
1216 | if i: | |
1217 | yield (astyle.style_default, ", ") |
|
1217 | yield (astyle.style_default, ", ") | |
1218 | for part in xrepr(item, "default"): |
|
1218 | for part in xrepr(item, "default"): | |
1219 | yield part |
|
1219 | yield part | |
1220 | yield (astyle.style_default, ")") |
|
1220 | yield (astyle.style_default, ")") | |
1221 | else: |
|
1221 | else: | |
1222 | yield (astyle.style_default, repr(self)) |
|
1222 | yield (astyle.style_default, repr(self)) | |
1223 |
|
1223 | |||
1224 |
|
1224 | |||
1225 | class ienv(Table): |
|
1225 | class ienv(Table): | |
1226 | """ |
|
1226 | """ | |
1227 | List environment variables. |
|
1227 | List environment variables. | |
1228 |
|
1228 | |||
1229 | Example: |
|
1229 | Example: | |
1230 |
|
1230 | |||
1231 | >>> ienv |
|
1231 | >>> ienv | |
1232 | """ |
|
1232 | """ | |
1233 |
|
1233 | |||
1234 | def __xiter__(self, mode): |
|
1234 | def __xiter__(self, mode): | |
1235 | fields = ("key", "value") |
|
1235 | fields = ("key", "value") | |
1236 | for (key, value) in os.environ.iteritems(): |
|
1236 | for (key, value) in os.environ.iteritems(): | |
1237 | yield Fields(fields, key=key, value=value) |
|
1237 | yield Fields(fields, key=key, value=value) | |
1238 |
|
1238 | |||
1239 | def __xrepr__(self, mode): |
|
1239 | def __xrepr__(self, mode): | |
1240 | if mode == "header" or mode == "cell": |
|
1240 | if mode == "header" or mode == "cell": | |
1241 | yield (astyle.style_default, "%s()" % self.__class__.__name__) |
|
1241 | yield (astyle.style_default, "%s()" % self.__class__.__name__) | |
1242 | else: |
|
1242 | else: | |
1243 | yield (astyle.style_default, repr(self)) |
|
1243 | yield (astyle.style_default, repr(self)) | |
1244 |
|
1244 | |||
1245 |
|
1245 | |||
1246 | class icsv(Pipe): |
|
1246 | class icsv(Pipe): | |
1247 | """ |
|
1247 | """ | |
1248 | This ``Pipe`` lists turn the input (with must be a pipe outputting lines |
|
1248 | This ``Pipe`` lists turn the input (with must be a pipe outputting lines | |
1249 | or an ``ifile``) into lines of CVS columns. |
|
1249 | or an ``ifile``) into lines of CVS columns. | |
1250 | """ |
|
1250 | """ | |
1251 | def __init__(self, **csvargs): |
|
1251 | def __init__(self, **csvargs): | |
1252 | """ |
|
1252 | """ | |
1253 | Create an ``icsv`` object. ``cvsargs`` will be passed through as |
|
1253 | Create an ``icsv`` object. ``cvsargs`` will be passed through as | |
1254 | keyword arguments to ``cvs.reader()``. |
|
1254 | keyword arguments to ``cvs.reader()``. | |
1255 | """ |
|
1255 | """ | |
1256 | self.csvargs = csvargs |
|
1256 | self.csvargs = csvargs | |
1257 |
|
1257 | |||
1258 | def __xiter__(self, mode): |
|
1258 | def __xiter__(self, mode): | |
1259 | input = self.input |
|
1259 | input = self.input | |
1260 | if isinstance(input, ifile): |
|
1260 | if isinstance(input, ifile): | |
1261 | input = input.open("rb") |
|
1261 | input = input.open("rb") | |
1262 | reader = csv.reader(input, **self.csvargs) |
|
1262 | reader = csv.reader(input, **self.csvargs) | |
1263 | for line in reader: |
|
1263 | for line in reader: | |
1264 | yield List(line) |
|
1264 | yield List(line) | |
1265 |
|
1265 | |||
1266 | def __xrepr__(self, mode): |
|
1266 | def __xrepr__(self, mode): | |
1267 | yield (-1, False) |
|
1267 | yield (-1, False) | |
1268 | if mode == "header" or mode == "footer": |
|
1268 | if mode == "header" or mode == "footer": | |
1269 | input = getattr(self, "input", None) |
|
1269 | input = getattr(self, "input", None) | |
1270 | if input is not None: |
|
1270 | if input is not None: | |
1271 | for part in xrepr(input, mode): |
|
1271 | for part in xrepr(input, mode): | |
1272 | yield part |
|
1272 | yield part | |
1273 | yield (astyle.style_default, " | ") |
|
1273 | yield (astyle.style_default, " | ") | |
1274 | yield (astyle.style_default, "%s(" % self.__class__.__name__) |
|
1274 | yield (astyle.style_default, "%s(" % self.__class__.__name__) | |
1275 | for (i, (name, value)) in enumerate(self.csvargs.iteritems()): |
|
1275 | for (i, (name, value)) in enumerate(self.csvargs.iteritems()): | |
1276 | if i: |
|
1276 | if i: | |
1277 | yield (astyle.style_default, ", ") |
|
1277 | yield (astyle.style_default, ", ") | |
1278 | yield (astyle.style_default, name) |
|
1278 | yield (astyle.style_default, name) | |
1279 | yield (astyle.style_default, "=") |
|
1279 | yield (astyle.style_default, "=") | |
1280 | for part in xrepr(value, "default"): |
|
1280 | for part in xrepr(value, "default"): | |
1281 | yield part |
|
1281 | yield part | |
1282 | yield (astyle.style_default, ")") |
|
1282 | yield (astyle.style_default, ")") | |
1283 | else: |
|
1283 | else: | |
1284 | yield (astyle.style_default, repr(self)) |
|
1284 | yield (astyle.style_default, repr(self)) | |
1285 |
|
1285 | |||
1286 | def __repr__(self): |
|
1286 | def __repr__(self): | |
1287 | args = ", ".join(["%s=%r" % item for item in self.csvargs.iteritems()]) |
|
1287 | args = ", ".join(["%s=%r" % item for item in self.csvargs.iteritems()]) | |
1288 | return "<%s.%s %s at 0x%x>" % \ |
|
1288 | return "<%s.%s %s at 0x%x>" % \ | |
1289 | (self.__class__.__module__, self.__class__.__name__, args, id(self)) |
|
1289 | (self.__class__.__module__, self.__class__.__name__, args, id(self)) | |
1290 |
|
1290 | |||
1291 |
|
1291 | |||
1292 | class ix(Table): |
|
1292 | class ix(Table): | |
1293 | """ |
|
1293 | """ | |
1294 | Execute a system command and list its output as lines |
|
1294 | Execute a system command and list its output as lines | |
1295 | (similar to ``os.popen()``). |
|
1295 | (similar to ``os.popen()``). | |
1296 |
|
1296 | |||
1297 | Examples: |
|
1297 | Examples: | |
1298 |
|
1298 | |||
1299 | >>> ix("ps x") |
|
1299 | >>> ix("ps x") | |
1300 | >>> ix("find .") | ifile |
|
1300 | >>> ix("find .") | ifile | |
1301 | """ |
|
1301 | """ | |
1302 | def __init__(self, cmd): |
|
1302 | def __init__(self, cmd): | |
1303 | self.cmd = cmd |
|
1303 | self.cmd = cmd | |
1304 | self._pipe = None |
|
1304 | self._pipe = None | |
1305 |
|
1305 | |||
1306 | def __xiter__(self, mode): |
|
1306 | def __xiter__(self, mode): | |
1307 | self._pipe = os.popen(self.cmd) |
|
1307 | self._pipe = os.popen(self.cmd) | |
1308 | for l in self._pipe: |
|
1308 | for l in self._pipe: | |
1309 | yield l.rstrip("\r\n") |
|
1309 | yield l.rstrip("\r\n") | |
1310 | self._pipe.close() |
|
1310 | self._pipe.close() | |
1311 | self._pipe = None |
|
1311 | self._pipe = None | |
1312 |
|
1312 | |||
1313 | def __del__(self): |
|
1313 | def __del__(self): | |
1314 | if self._pipe is not None and not self._pipe.closed: |
|
1314 | if self._pipe is not None and not self._pipe.closed: | |
1315 | self._pipe.close() |
|
1315 | self._pipe.close() | |
1316 | self._pipe = None |
|
1316 | self._pipe = None | |
1317 |
|
1317 | |||
1318 | def __xrepr__(self, mode): |
|
1318 | def __xrepr__(self, mode): | |
1319 | if mode == "header" or mode == "footer": |
|
1319 | if mode == "header" or mode == "footer": | |
1320 | yield (astyle.style_default, |
|
1320 | yield (astyle.style_default, | |
1321 | "%s(%r)" % (self.__class__.__name__, self.cmd)) |
|
1321 | "%s(%r)" % (self.__class__.__name__, self.cmd)) | |
1322 | else: |
|
1322 | else: | |
1323 | yield (astyle.style_default, repr(self)) |
|
1323 | yield (astyle.style_default, repr(self)) | |
1324 |
|
1324 | |||
1325 | def __repr__(self): |
|
1325 | def __repr__(self): | |
1326 | return "%s.%s(%r)" % \ |
|
1326 | return "%s.%s(%r)" % \ | |
1327 | (self.__class__.__module__, self.__class__.__name__, self.cmd) |
|
1327 | (self.__class__.__module__, self.__class__.__name__, self.cmd) | |
1328 |
|
1328 | |||
1329 |
|
1329 | |||
1330 | class ifilter(Pipe): |
|
1330 | class ifilter(Pipe): | |
1331 | """ |
|
1331 | """ | |
1332 | Filter an input pipe. Only objects where an expression evaluates to true |
|
1332 | Filter an input pipe. Only objects where an expression evaluates to true | |
1333 | (and doesn't raise an exception) are listed. |
|
1333 | (and doesn't raise an exception) are listed. | |
1334 |
|
1334 | |||
1335 | Examples: |
|
1335 | Examples: | |
1336 |
|
1336 | |||
1337 | >>> ils | ifilter("_.isfile() and size>1000") |
|
1337 | >>> ils | ifilter("_.isfile() and size>1000") | |
1338 | >>> igrp | ifilter("len(mem)") |
|
1338 | >>> igrp | ifilter("len(mem)") | |
1339 | >>> sys.modules | ifilter(lambda _:_.value is not None) |
|
1339 | >>> sys.modules | ifilter(lambda _:_.value is not None) | |
1340 | """ |
|
1340 | """ | |
1341 |
|
1341 | |||
1342 | def __init__(self, expr, globals=None, errors="raiseifallfail"): |
|
1342 | def __init__(self, expr, globals=None, errors="raiseifallfail"): | |
1343 | """ |
|
1343 | """ | |
1344 | Create an ``ifilter`` object. ``expr`` can be a callable or a string |
|
1344 | Create an ``ifilter`` object. ``expr`` can be a callable or a string | |
1345 | containing an expression. ``globals`` will be used as the global |
|
1345 | containing an expression. ``globals`` will be used as the global | |
1346 | namespace for calling string expressions (defaulting to IPython's |
|
1346 | namespace for calling string expressions (defaulting to IPython's | |
1347 | user namespace). ``errors`` specifies how exception during evaluation |
|
1347 | user namespace). ``errors`` specifies how exception during evaluation | |
1348 | of ``expr`` are handled: |
|
1348 | of ``expr`` are handled: | |
1349 |
|
1349 | |||
1350 | * ``drop``: drop all items that have errors; |
|
1350 | * ``drop``: drop all items that have errors; | |
1351 |
|
1351 | |||
1352 | * ``keep``: keep all items that have errors; |
|
1352 | * ``keep``: keep all items that have errors; | |
1353 |
|
1353 | |||
1354 | * ``keeperror``: keep the exception of all items that have errors; |
|
1354 | * ``keeperror``: keep the exception of all items that have errors; | |
1355 |
|
1355 | |||
1356 | * ``raise``: raise the exception; |
|
1356 | * ``raise``: raise the exception; | |
1357 |
|
1357 | |||
1358 | * ``raiseifallfail``: raise the first exception if all items have errors; |
|
1358 | * ``raiseifallfail``: raise the first exception if all items have errors; | |
1359 | otherwise drop those with errors (this is the default). |
|
1359 | otherwise drop those with errors (this is the default). | |
1360 | """ |
|
1360 | """ | |
1361 | self.expr = expr |
|
1361 | self.expr = expr | |
1362 | self.globals = globals |
|
1362 | self.globals = globals | |
1363 | self.errors = errors |
|
1363 | self.errors = errors | |
1364 |
|
1364 | |||
1365 | def __xiter__(self, mode): |
|
1365 | def __xiter__(self, mode): | |
1366 | if callable(self.expr): |
|
1366 | if callable(self.expr): | |
1367 | test = self.expr |
|
1367 | test = self.expr | |
1368 | else: |
|
1368 | else: | |
1369 | g = getglobals(self.globals) |
|
1369 | g = getglobals(self.globals) | |
1370 | expr = compile(self.expr, "ipipe-expression", "eval") |
|
1370 | expr = compile(self.expr, "ipipe-expression", "eval") | |
1371 | def test(item): |
|
1371 | def test(item): | |
1372 | return eval(expr, g, AttrNamespace(item)) |
|
1372 | return eval(expr, g, AttrNamespace(item)) | |
1373 |
|
1373 | |||
1374 | ok = 0 |
|
1374 | ok = 0 | |
1375 | exc_info = None |
|
1375 | exc_info = None | |
1376 | for item in xiter(self.input, mode): |
|
1376 | for item in xiter(self.input, mode): | |
1377 | try: |
|
1377 | try: | |
1378 | if test(item): |
|
1378 | if test(item): | |
1379 | yield item |
|
1379 | yield item | |
1380 | ok += 1 |
|
1380 | ok += 1 | |
1381 | except (KeyboardInterrupt, SystemExit): |
|
1381 | except (KeyboardInterrupt, SystemExit): | |
1382 | raise |
|
1382 | raise | |
1383 | except Exception, exc: |
|
1383 | except Exception, exc: | |
1384 | if self.errors == "drop": |
|
1384 | if self.errors == "drop": | |
1385 | pass # Ignore errors |
|
1385 | pass # Ignore errors | |
1386 | elif self.errors == "keep": |
|
1386 | elif self.errors == "keep": | |
1387 | yield item |
|
1387 | yield item | |
1388 | elif self.errors == "keeperror": |
|
1388 | elif self.errors == "keeperror": | |
1389 | yield exc |
|
1389 | yield exc | |
1390 | elif self.errors == "raise": |
|
1390 | elif self.errors == "raise": | |
1391 | raise |
|
1391 | raise | |
1392 | elif self.errors == "raiseifallfail": |
|
1392 | elif self.errors == "raiseifallfail": | |
1393 | if exc_info is None: |
|
1393 | if exc_info is None: | |
1394 | exc_info = sys.exc_info() |
|
1394 | exc_info = sys.exc_info() | |
1395 | if not ok and exc_info is not None: |
|
1395 | if not ok and exc_info is not None: | |
1396 | raise exc_info[0], exc_info[1], exc_info[2] |
|
1396 | raise exc_info[0], exc_info[1], exc_info[2] | |
1397 |
|
1397 | |||
1398 | def __xrepr__(self, mode): |
|
1398 | def __xrepr__(self, mode): | |
1399 | if mode == "header" or mode == "footer": |
|
1399 | if mode == "header" or mode == "footer": | |
1400 | input = getattr(self, "input", None) |
|
1400 | input = getattr(self, "input", None) | |
1401 | if input is not None: |
|
1401 | if input is not None: | |
1402 | for part in xrepr(input, mode): |
|
1402 | for part in xrepr(input, mode): | |
1403 | yield part |
|
1403 | yield part | |
1404 | yield (astyle.style_default, " | ") |
|
1404 | yield (astyle.style_default, " | ") | |
1405 | yield (astyle.style_default, "%s(" % self.__class__.__name__) |
|
1405 | yield (astyle.style_default, "%s(" % self.__class__.__name__) | |
1406 | for part in xrepr(self.expr, "default"): |
|
1406 | for part in xrepr(self.expr, "default"): | |
1407 | yield part |
|
1407 | yield part | |
1408 | yield (astyle.style_default, ")") |
|
1408 | yield (astyle.style_default, ")") | |
1409 | else: |
|
1409 | else: | |
1410 | yield (astyle.style_default, repr(self)) |
|
1410 | yield (astyle.style_default, repr(self)) | |
1411 |
|
1411 | |||
1412 | def __repr__(self): |
|
1412 | def __repr__(self): | |
1413 | return "<%s.%s expr=%r at 0x%x>" % \ |
|
1413 | return "<%s.%s expr=%r at 0x%x>" % \ | |
1414 | (self.__class__.__module__, self.__class__.__name__, |
|
1414 | (self.__class__.__module__, self.__class__.__name__, | |
1415 | self.expr, id(self)) |
|
1415 | self.expr, id(self)) | |
1416 |
|
1416 | |||
1417 |
|
1417 | |||
1418 | class ieval(Pipe): |
|
1418 | class ieval(Pipe): | |
1419 | """ |
|
1419 | """ | |
1420 | Evaluate an expression for each object in the input pipe. |
|
1420 | Evaluate an expression for each object in the input pipe. | |
1421 |
|
1421 | |||
1422 | Examples: |
|
1422 | Examples: | |
1423 |
|
1423 | |||
1424 | >>> ils | ieval("_.abspath()") |
|
1424 | >>> ils | ieval("_.abspath()") | |
1425 | >>> sys.path | ieval(ifile) |
|
1425 | >>> sys.path | ieval(ifile) | |
1426 | """ |
|
1426 | """ | |
1427 |
|
1427 | |||
1428 | def __init__(self, expr, globals=None, errors="raiseifallfail"): |
|
1428 | def __init__(self, expr, globals=None, errors="raiseifallfail"): | |
1429 | """ |
|
1429 | """ | |
1430 | Create an ``ieval`` object. ``expr`` can be a callable or a string |
|
1430 | Create an ``ieval`` object. ``expr`` can be a callable or a string | |
1431 | containing an expression. For the meaning of ``globals`` and |
|
1431 | containing an expression. For the meaning of ``globals`` and | |
1432 | ``errors`` see ``ifilter``. |
|
1432 | ``errors`` see ``ifilter``. | |
1433 | """ |
|
1433 | """ | |
1434 | self.expr = expr |
|
1434 | self.expr = expr | |
1435 | self.globals = globals |
|
1435 | self.globals = globals | |
1436 | self.errors = errors |
|
1436 | self.errors = errors | |
1437 |
|
1437 | |||
1438 | def __xiter__(self, mode): |
|
1438 | def __xiter__(self, mode): | |
1439 | if callable(self.expr): |
|
1439 | if callable(self.expr): | |
1440 | do = self.expr |
|
1440 | do = self.expr | |
1441 | else: |
|
1441 | else: | |
1442 | g = getglobals(self.globals) |
|
1442 | g = getglobals(self.globals) | |
1443 | expr = compile(self.expr, "ipipe-expression", "eval") |
|
1443 | expr = compile(self.expr, "ipipe-expression", "eval") | |
1444 | def do(item): |
|
1444 | def do(item): | |
1445 | return eval(expr, g, AttrNamespace(item)) |
|
1445 | return eval(expr, g, AttrNamespace(item)) | |
1446 |
|
1446 | |||
1447 | ok = 0 |
|
1447 | ok = 0 | |
1448 | exc_info = None |
|
1448 | exc_info = None | |
1449 | for item in xiter(self.input, mode): |
|
1449 | for item in xiter(self.input, mode): | |
1450 | try: |
|
1450 | try: | |
1451 | yield do(item) |
|
1451 | yield do(item) | |
1452 | except (KeyboardInterrupt, SystemExit): |
|
1452 | except (KeyboardInterrupt, SystemExit): | |
1453 | raise |
|
1453 | raise | |
1454 | except Exception, exc: |
|
1454 | except Exception, exc: | |
1455 | if self.errors == "drop": |
|
1455 | if self.errors == "drop": | |
1456 | pass # Ignore errors |
|
1456 | pass # Ignore errors | |
1457 | elif self.errors == "keep": |
|
1457 | elif self.errors == "keep": | |
1458 | yield item |
|
1458 | yield item | |
1459 | elif self.errors == "keeperror": |
|
1459 | elif self.errors == "keeperror": | |
1460 | yield exc |
|
1460 | yield exc | |
1461 | elif self.errors == "raise": |
|
1461 | elif self.errors == "raise": | |
1462 | raise |
|
1462 | raise | |
1463 | elif self.errors == "raiseifallfail": |
|
1463 | elif self.errors == "raiseifallfail": | |
1464 | if exc_info is None: |
|
1464 | if exc_info is None: | |
1465 | exc_info = sys.exc_info() |
|
1465 | exc_info = sys.exc_info() | |
1466 | if not ok and exc_info is not None: |
|
1466 | if not ok and exc_info is not None: | |
1467 | raise exc_info[0], exc_info[1], exc_info[2] |
|
1467 | raise exc_info[0], exc_info[1], exc_info[2] | |
1468 |
|
1468 | |||
1469 | def __xrepr__(self, mode): |
|
1469 | def __xrepr__(self, mode): | |
1470 | if mode == "header" or mode == "footer": |
|
1470 | if mode == "header" or mode == "footer": | |
1471 | input = getattr(self, "input", None) |
|
1471 | input = getattr(self, "input", None) | |
1472 | if input is not None: |
|
1472 | if input is not None: | |
1473 | for part in xrepr(input, mode): |
|
1473 | for part in xrepr(input, mode): | |
1474 | yield part |
|
1474 | yield part | |
1475 | yield (astyle.style_default, " | ") |
|
1475 | yield (astyle.style_default, " | ") | |
1476 | yield (astyle.style_default, "%s(" % self.__class__.__name__) |
|
1476 | yield (astyle.style_default, "%s(" % self.__class__.__name__) | |
1477 | for part in xrepr(self.expr, "default"): |
|
1477 | for part in xrepr(self.expr, "default"): | |
1478 | yield part |
|
1478 | yield part | |
1479 | yield (astyle.style_default, ")") |
|
1479 | yield (astyle.style_default, ")") | |
1480 | else: |
|
1480 | else: | |
1481 | yield (astyle.style_default, repr(self)) |
|
1481 | yield (astyle.style_default, repr(self)) | |
1482 |
|
1482 | |||
1483 | def __repr__(self): |
|
1483 | def __repr__(self): | |
1484 | return "<%s.%s expr=%r at 0x%x>" % \ |
|
1484 | return "<%s.%s expr=%r at 0x%x>" % \ | |
1485 | (self.__class__.__module__, self.__class__.__name__, |
|
1485 | (self.__class__.__module__, self.__class__.__name__, | |
1486 | self.expr, id(self)) |
|
1486 | self.expr, id(self)) | |
1487 |
|
1487 | |||
1488 |
|
1488 | |||
1489 | class ienum(Pipe): |
|
1489 | class ienum(Pipe): | |
1490 | """ |
|
1490 | """ | |
1491 | Enumerate the input pipe (i.e. wrap each input object in an object |
|
1491 | Enumerate the input pipe (i.e. wrap each input object in an object | |
1492 | with ``index`` and ``object`` attributes). |
|
1492 | with ``index`` and ``object`` attributes). | |
1493 |
|
1493 | |||
1494 | Examples: |
|
1494 | Examples: | |
1495 |
|
1495 | |||
1496 | >>> xrange(20) | ieval("_,_*_") | ienum | ifilter("index % 2 == 0") | ieval("object") |
|
1496 | >>> xrange(20) | ieval("_,_*_") | ienum | ifilter("index % 2 == 0") | ieval("object") | |
1497 | """ |
|
1497 | """ | |
1498 | def __xiter__(self, mode): |
|
1498 | def __xiter__(self, mode): | |
1499 | fields = ("index", "object") |
|
1499 | fields = ("index", "object") | |
1500 | for (index, object) in enumerate(xiter(self.input, mode)): |
|
1500 | for (index, object) in enumerate(xiter(self.input, mode)): | |
1501 | yield Fields(fields, index=index, object=object) |
|
1501 | yield Fields(fields, index=index, object=object) | |
1502 |
|
1502 | |||
1503 |
|
1503 | |||
1504 | class isort(Pipe): |
|
1504 | class isort(Pipe): | |
1505 | """ |
|
1505 | """ | |
1506 | Sorts the input pipe. |
|
1506 | Sorts the input pipe. | |
1507 |
|
1507 | |||
1508 | Examples: |
|
1508 | Examples: | |
1509 |
|
1509 | |||
1510 | >>> ils | isort("size") |
|
1510 | >>> ils | isort("size") | |
1511 | >>> ils | isort("_.isdir(), _.lower()", reverse=True) |
|
1511 | >>> ils | isort("_.isdir(), _.lower()", reverse=True) | |
1512 | """ |
|
1512 | """ | |
1513 |
|
1513 | |||
1514 | def __init__(self, key, globals=None, reverse=False): |
|
1514 | def __init__(self, key=None, globals=None, reverse=False): | |
1515 | """ |
|
1515 | """ | |
1516 | Create an ``isort`` object. ``key`` can be a callable or a string |
|
1516 | Create an ``isort`` object. ``key`` can be a callable or a string | |
1517 |
containing an expression |
|
1517 | containing an expression (or ``None`` in which case the items | |
1518 | be reversed. For the meaning of ``globals`` see ``ifilter``. |
|
1518 | themselves will be sorted). If ``reverse`` is true the sort order | |
|
1519 | will be reversed. For the meaning of ``globals`` see ``ifilter``. | |||
1519 | """ |
|
1520 | """ | |
1520 | self.key = key |
|
1521 | self.key = key | |
1521 | self.globals = globals |
|
1522 | self.globals = globals | |
1522 | self.reverse = reverse |
|
1523 | self.reverse = reverse | |
1523 |
|
1524 | |||
1524 | def __xiter__(self, mode): |
|
1525 | def __xiter__(self, mode): | |
1525 |
if |
|
1526 | if self.key is None: | |
|
1527 | items = sorted( | |||
|
1528 | xiter(self.input, mode), | |||
|
1529 | reverse=self.reverse | |||
|
1530 | ) | |||
|
1531 | elif callable(self.key): | |||
1526 | items = sorted( |
|
1532 | items = sorted( | |
1527 | xiter(self.input, mode), |
|
1533 | xiter(self.input, mode), | |
1528 | key=self.key, |
|
1534 | key=self.key, | |
1529 | reverse=self.reverse |
|
1535 | reverse=self.reverse | |
1530 | ) |
|
1536 | ) | |
1531 | else: |
|
1537 | else: | |
1532 | g = getglobals(self.globals) |
|
1538 | g = getglobals(self.globals) | |
1533 | key = compile(self.key, "ipipe-expression", "eval") |
|
1539 | key = compile(self.key, "ipipe-expression", "eval") | |
1534 | def realkey(item): |
|
1540 | def realkey(item): | |
1535 | return eval(key, g, AttrNamespace(item)) |
|
1541 | return eval(key, g, AttrNamespace(item)) | |
1536 | items = sorted( |
|
1542 | items = sorted( | |
1537 | xiter(self.input, mode), |
|
1543 | xiter(self.input, mode), | |
1538 | key=realkey, |
|
1544 | key=realkey, | |
1539 | reverse=self.reverse |
|
1545 | reverse=self.reverse | |
1540 | ) |
|
1546 | ) | |
1541 | for item in items: |
|
1547 | for item in items: | |
1542 | yield item |
|
1548 | yield item | |
1543 |
|
1549 | |||
1544 | def __xrepr__(self, mode): |
|
1550 | def __xrepr__(self, mode): | |
1545 | if mode == "header" or mode == "footer": |
|
1551 | if mode == "header" or mode == "footer": | |
1546 | input = getattr(self, "input", None) |
|
1552 | input = getattr(self, "input", None) | |
1547 | if input is not None: |
|
1553 | if input is not None: | |
1548 | for part in xrepr(input, mode): |
|
1554 | for part in xrepr(input, mode): | |
1549 | yield part |
|
1555 | yield part | |
1550 | yield (astyle.style_default, " | ") |
|
1556 | yield (astyle.style_default, " | ") | |
1551 | yield (astyle.style_default, "%s(" % self.__class__.__name__) |
|
1557 | yield (astyle.style_default, "%s(" % self.__class__.__name__) | |
1552 | for part in xrepr(self.key, "default"): |
|
1558 | for part in xrepr(self.key, "default"): | |
1553 | yield part |
|
1559 | yield part | |
1554 | if self.reverse: |
|
1560 | if self.reverse: | |
1555 | yield (astyle.style_default, ", ") |
|
1561 | yield (astyle.style_default, ", ") | |
1556 | for part in xrepr(True, "default"): |
|
1562 | for part in xrepr(True, "default"): | |
1557 | yield part |
|
1563 | yield part | |
1558 | yield (astyle.style_default, ")") |
|
1564 | yield (astyle.style_default, ")") | |
1559 | else: |
|
1565 | else: | |
1560 | yield (astyle.style_default, repr(self)) |
|
1566 | yield (astyle.style_default, repr(self)) | |
1561 |
|
1567 | |||
1562 | def __repr__(self): |
|
1568 | def __repr__(self): | |
1563 | return "<%s.%s key=%r reverse=%r at 0x%x>" % \ |
|
1569 | return "<%s.%s key=%r reverse=%r at 0x%x>" % \ | |
1564 | (self.__class__.__module__, self.__class__.__name__, |
|
1570 | (self.__class__.__module__, self.__class__.__name__, | |
1565 | self.key, self.reverse, id(self)) |
|
1571 | self.key, self.reverse, id(self)) | |
1566 |
|
1572 | |||
1567 |
|
1573 | |||
1568 | tab = 3 # for expandtabs() |
|
1574 | tab = 3 # for expandtabs() | |
1569 |
|
1575 | |||
1570 | def _format(field): |
|
1576 | def _format(field): | |
1571 | if isinstance(field, str): |
|
1577 | if isinstance(field, str): | |
1572 | text = repr(field.expandtabs(tab))[1:-1] |
|
1578 | text = repr(field.expandtabs(tab))[1:-1] | |
1573 | elif isinstance(field, unicode): |
|
1579 | elif isinstance(field, unicode): | |
1574 | text = repr(field.expandtabs(tab))[2:-1] |
|
1580 | text = repr(field.expandtabs(tab))[2:-1] | |
1575 | elif isinstance(field, datetime.datetime): |
|
1581 | elif isinstance(field, datetime.datetime): | |
1576 | # Don't use strftime() here, as this requires year >= 1900 |
|
1582 | # Don't use strftime() here, as this requires year >= 1900 | |
1577 | text = "%04d-%02d-%02d %02d:%02d:%02d.%06d" % \ |
|
1583 | text = "%04d-%02d-%02d %02d:%02d:%02d.%06d" % \ | |
1578 | (field.year, field.month, field.day, |
|
1584 | (field.year, field.month, field.day, | |
1579 | field.hour, field.minute, field.second, field.microsecond) |
|
1585 | field.hour, field.minute, field.second, field.microsecond) | |
1580 | elif isinstance(field, datetime.date): |
|
1586 | elif isinstance(field, datetime.date): | |
1581 | text = "%04d-%02d-%02d" % (field.year, field.month, field.day) |
|
1587 | text = "%04d-%02d-%02d" % (field.year, field.month, field.day) | |
1582 | else: |
|
1588 | else: | |
1583 | text = repr(field) |
|
1589 | text = repr(field) | |
1584 | return text |
|
1590 | return text | |
1585 |
|
1591 | |||
1586 |
|
1592 | |||
1587 | class Display(object): |
|
1593 | class Display(object): | |
1588 | class __metaclass__(type): |
|
1594 | class __metaclass__(type): | |
1589 | def __ror__(self, input): |
|
1595 | def __ror__(self, input): | |
1590 | return input | self() |
|
1596 | return input | self() | |
1591 |
|
1597 | |||
1592 | def __ror__(self, input): |
|
1598 | def __ror__(self, input): | |
1593 | self.input = input |
|
1599 | self.input = input | |
1594 | return self |
|
1600 | return self | |
1595 |
|
1601 | |||
1596 | def display(self): |
|
1602 | def display(self): | |
1597 | pass |
|
1603 | pass | |
1598 |
|
1604 | |||
1599 |
|
1605 | |||
1600 | class iless(Display): |
|
1606 | class iless(Display): | |
1601 | cmd = "less --quit-if-one-screen --LONG-PROMPT --LINE-NUMBERS --chop-long-lines --shift=8 --RAW-CONTROL-CHARS" |
|
1607 | cmd = "less --quit-if-one-screen --LONG-PROMPT --LINE-NUMBERS --chop-long-lines --shift=8 --RAW-CONTROL-CHARS" | |
1602 |
|
1608 | |||
1603 | def display(self): |
|
1609 | def display(self): | |
1604 | try: |
|
1610 | try: | |
1605 | pager = os.popen(self.cmd, "w") |
|
1611 | pager = os.popen(self.cmd, "w") | |
1606 | try: |
|
1612 | try: | |
1607 | for item in xiter(self.input, "default"): |
|
1613 | for item in xiter(self.input, "default"): | |
1608 | attrs = xattrs(item, "default") |
|
1614 | attrs = xattrs(item, "default") | |
1609 | attrs = ["%s=%s" % (a, _format(_getattr(item, a))) for a in attrs] |
|
1615 | attrs = ["%s=%s" % (a, _format(_getattr(item, a))) for a in attrs] | |
1610 | pager.write(" ".join(attrs)) |
|
1616 | pager.write(" ".join(attrs)) | |
1611 | pager.write("\n") |
|
1617 | pager.write("\n") | |
1612 | finally: |
|
1618 | finally: | |
1613 | pager.close() |
|
1619 | pager.close() | |
1614 | except Exception, exc: |
|
1620 | except Exception, exc: | |
1615 | print "%s: %s" % (exc.__class__.__name__, str(exc)) |
|
1621 | print "%s: %s" % (exc.__class__.__name__, str(exc)) | |
1616 |
|
1622 | |||
1617 |
|
1623 | |||
1618 | def xformat(value, mode, maxlength): |
|
1624 | def xformat(value, mode, maxlength): | |
1619 | align = None |
|
1625 | align = None | |
1620 | full = True |
|
1626 | full = True | |
1621 | width = 0 |
|
1627 | width = 0 | |
1622 | text = astyle.Text() |
|
1628 | text = astyle.Text() | |
1623 | for (style, part) in xrepr(value, mode): |
|
1629 | for (style, part) in xrepr(value, mode): | |
1624 | # only consider the first result |
|
1630 | # only consider the first result | |
1625 | if align is None: |
|
1631 | if align is None: | |
1626 | if isinstance(style, int): |
|
1632 | if isinstance(style, int): | |
1627 | # (style, text) really is (alignment, stop) |
|
1633 | # (style, text) really is (alignment, stop) | |
1628 | align = style |
|
1634 | align = style | |
1629 | full = part |
|
1635 | full = part | |
1630 | continue |
|
1636 | continue | |
1631 | else: |
|
1637 | else: | |
1632 | align = -1 |
|
1638 | align = -1 | |
1633 | full = True |
|
1639 | full = True | |
1634 | if not isinstance(style, int): |
|
1640 | if not isinstance(style, int): | |
1635 | text.append((style, part)) |
|
1641 | text.append((style, part)) | |
1636 | width += len(part) |
|
1642 | width += len(part) | |
1637 | if width >= maxlength and not full: |
|
1643 | if width >= maxlength and not full: | |
1638 | text.append((astyle.style_ellisis, "...")) |
|
1644 | text.append((astyle.style_ellisis, "...")) | |
1639 | width += 3 |
|
1645 | width += 3 | |
1640 | break |
|
1646 | break | |
1641 | if align is None: # default to left alignment |
|
1647 | if align is None: # default to left alignment | |
1642 | align = -1 |
|
1648 | align = -1 | |
1643 | return (align, width, text) |
|
1649 | return (align, width, text) | |
1644 |
|
1650 | |||
1645 |
|
1651 | |||
1646 | class idump(Display): |
|
1652 | class idump(Display): | |
1647 | # The approximate maximum length of a column entry |
|
1653 | # The approximate maximum length of a column entry | |
1648 | maxattrlength = 200 |
|
1654 | maxattrlength = 200 | |
1649 |
|
1655 | |||
1650 | # Style for column names |
|
1656 | # Style for column names | |
1651 | style_header = astyle.Style.fromstr("white:black:bold") |
|
1657 | style_header = astyle.Style.fromstr("white:black:bold") | |
1652 |
|
1658 | |||
1653 | def __init__(self, *attrs): |
|
1659 | def __init__(self, *attrs): | |
1654 | self.attrs = attrs |
|
1660 | self.attrs = attrs | |
1655 | self.headerpadchar = " " |
|
1661 | self.headerpadchar = " " | |
1656 | self.headersepchar = "|" |
|
1662 | self.headersepchar = "|" | |
1657 | self.datapadchar = " " |
|
1663 | self.datapadchar = " " | |
1658 | self.datasepchar = "|" |
|
1664 | self.datasepchar = "|" | |
1659 |
|
1665 | |||
1660 | def display(self): |
|
1666 | def display(self): | |
1661 | stream = genutils.Term.cout |
|
1667 | stream = genutils.Term.cout | |
1662 | allattrs = [] |
|
1668 | allattrs = [] | |
1663 | allattrset = set() |
|
1669 | allattrset = set() | |
1664 | colwidths = {} |
|
1670 | colwidths = {} | |
1665 | rows = [] |
|
1671 | rows = [] | |
1666 | for item in xiter(self.input, "default"): |
|
1672 | for item in xiter(self.input, "default"): | |
1667 | row = {} |
|
1673 | row = {} | |
1668 | attrs = self.attrs |
|
1674 | attrs = self.attrs | |
1669 | if not attrs: |
|
1675 | if not attrs: | |
1670 | attrs = xattrs(item, "default") |
|
1676 | attrs = xattrs(item, "default") | |
1671 | for attrname in attrs: |
|
1677 | for attrname in attrs: | |
1672 | if attrname not in allattrset: |
|
1678 | if attrname not in allattrset: | |
1673 | allattrs.append(attrname) |
|
1679 | allattrs.append(attrname) | |
1674 | allattrset.add(attrname) |
|
1680 | allattrset.add(attrname) | |
1675 | colwidths[attrname] = len(_attrname(attrname)) |
|
1681 | colwidths[attrname] = len(_attrname(attrname)) | |
1676 | try: |
|
1682 | try: | |
1677 | value = _getattr(item, attrname, None) |
|
1683 | value = _getattr(item, attrname, None) | |
1678 | except (KeyboardInterrupt, SystemExit): |
|
1684 | except (KeyboardInterrupt, SystemExit): | |
1679 | raise |
|
1685 | raise | |
1680 | except Exception, exc: |
|
1686 | except Exception, exc: | |
1681 | value = exc |
|
1687 | value = exc | |
1682 | (align, width, text) = xformat(value, "cell", self.maxattrlength) |
|
1688 | (align, width, text) = xformat(value, "cell", self.maxattrlength) | |
1683 | colwidths[attrname] = max(colwidths[attrname], width) |
|
1689 | colwidths[attrname] = max(colwidths[attrname], width) | |
1684 | # remember alignment, length and colored parts |
|
1690 | # remember alignment, length and colored parts | |
1685 | row[attrname] = (align, width, text) |
|
1691 | row[attrname] = (align, width, text) | |
1686 | rows.append(row) |
|
1692 | rows.append(row) | |
1687 |
|
1693 | |||
1688 | stream.write("\n") |
|
1694 | stream.write("\n") | |
1689 | for (i, attrname) in enumerate(allattrs): |
|
1695 | for (i, attrname) in enumerate(allattrs): | |
1690 | self.style_header(_attrname(attrname)).write(stream) |
|
1696 | self.style_header(_attrname(attrname)).write(stream) | |
1691 | spc = colwidths[attrname] - len(_attrname(attrname)) |
|
1697 | spc = colwidths[attrname] - len(_attrname(attrname)) | |
1692 | if i < len(colwidths)-1: |
|
1698 | if i < len(colwidths)-1: | |
1693 | stream.write(self.headerpadchar*spc) |
|
1699 | stream.write(self.headerpadchar*spc) | |
1694 | stream.write(self.headersepchar) |
|
1700 | stream.write(self.headersepchar) | |
1695 | stream.write("\n") |
|
1701 | stream.write("\n") | |
1696 |
|
1702 | |||
1697 | for row in rows: |
|
1703 | for row in rows: | |
1698 | for (i, attrname) in enumerate(allattrs): |
|
1704 | for (i, attrname) in enumerate(allattrs): | |
1699 | (align, width, text) = row[attrname] |
|
1705 | (align, width, text) = row[attrname] | |
1700 | spc = colwidths[attrname] - width |
|
1706 | spc = colwidths[attrname] - width | |
1701 | if align == -1: |
|
1707 | if align == -1: | |
1702 | text.write(stream) |
|
1708 | text.write(stream) | |
1703 | if i < len(colwidths)-1: |
|
1709 | if i < len(colwidths)-1: | |
1704 | stream.write(self.datapadchar*spc) |
|
1710 | stream.write(self.datapadchar*spc) | |
1705 | elif align == 0: |
|
1711 | elif align == 0: | |
1706 | spc = colwidths[attrname] - width |
|
1712 | spc = colwidths[attrname] - width | |
1707 | spc1 = spc//2 |
|
1713 | spc1 = spc//2 | |
1708 | spc2 = spc-spc1 |
|
1714 | spc2 = spc-spc1 | |
1709 | stream.write(self.datapadchar*spc1) |
|
1715 | stream.write(self.datapadchar*spc1) | |
1710 | text.write(stream) |
|
1716 | text.write(stream) | |
1711 | if i < len(colwidths)-1: |
|
1717 | if i < len(colwidths)-1: | |
1712 | stream.write(self.datapadchar*spc2) |
|
1718 | stream.write(self.datapadchar*spc2) | |
1713 | else: |
|
1719 | else: | |
1714 | stream.write(self.datapadchar*spc) |
|
1720 | stream.write(self.datapadchar*spc) | |
1715 | text.write(stream) |
|
1721 | text.write(stream) | |
1716 | if i < len(colwidths)-1: |
|
1722 | if i < len(colwidths)-1: | |
1717 | stream.write(self.datasepchar) |
|
1723 | stream.write(self.datasepchar) | |
1718 | stream.write("\n") |
|
1724 | stream.write("\n") | |
1719 |
|
1725 | |||
1720 |
|
1726 | |||
1721 | class XMode(object): |
|
1727 | class XMode(object): | |
1722 | """ |
|
1728 | """ | |
1723 | An ``XMode`` object describes one enter mode available for an object |
|
1729 | An ``XMode`` object describes one enter mode available for an object | |
1724 | """ |
|
1730 | """ | |
1725 | def __init__(self, object, mode, title=None, description=None): |
|
1731 | def __init__(self, object, mode, title=None, description=None): | |
1726 | """ |
|
1732 | """ | |
1727 | Create a new ``XMode`` object for the object ``object``. This object |
|
1733 | Create a new ``XMode`` object for the object ``object``. This object | |
1728 | must support the enter mode ``mode`` (i.e. ``object.__xiter__(mode)`` |
|
1734 | must support the enter mode ``mode`` (i.e. ``object.__xiter__(mode)`` | |
1729 | must return an iterable). ``title`` and ``description`` will be |
|
1735 | must return an iterable). ``title`` and ``description`` will be | |
1730 | displayed in the browser when selecting among the available modes. |
|
1736 | displayed in the browser when selecting among the available modes. | |
1731 | """ |
|
1737 | """ | |
1732 | self.object = object |
|
1738 | self.object = object | |
1733 | self.mode = mode |
|
1739 | self.mode = mode | |
1734 | self.title = title |
|
1740 | self.title = title | |
1735 | self.description = description |
|
1741 | self.description = description | |
1736 |
|
1742 | |||
1737 | def __repr__(self): |
|
1743 | def __repr__(self): | |
1738 | return "<%s.%s object mode=%r at 0x%x>" % \ |
|
1744 | return "<%s.%s object mode=%r at 0x%x>" % \ | |
1739 | (self.__class__.__module__, self.__class__.__name__, |
|
1745 | (self.__class__.__module__, self.__class__.__name__, | |
1740 | self.mode, id(self)) |
|
1746 | self.mode, id(self)) | |
1741 |
|
1747 | |||
1742 | def __xrepr__(self, mode): |
|
1748 | def __xrepr__(self, mode): | |
1743 | if mode == "header" or mode == "footer": |
|
1749 | if mode == "header" or mode == "footer": | |
1744 | yield (astyle.style_default, self.title) |
|
1750 | yield (astyle.style_default, self.title) | |
1745 | else: |
|
1751 | else: | |
1746 | yield (astyle.style_default, repr(self)) |
|
1752 | yield (astyle.style_default, repr(self)) | |
1747 |
|
1753 | |||
1748 | def __xattrs__(self, mode): |
|
1754 | def __xattrs__(self, mode): | |
1749 | if mode == "detail": |
|
1755 | if mode == "detail": | |
1750 | return ("object", "mode", "title", "description") |
|
1756 | return ("object", "mode", "title", "description") | |
1751 | return ("title", "description") |
|
1757 | return ("title", "description") | |
1752 |
|
1758 | |||
1753 | def __xiter__(self, mode): |
|
1759 | def __xiter__(self, mode): | |
1754 | return xiter(self.object, self.mode) |
|
1760 | return xiter(self.object, self.mode) | |
1755 |
|
1761 | |||
1756 |
|
1762 | |||
1757 | class XAttr(object): |
|
1763 | class XAttr(object): | |
1758 | def __init__(self, object, name): |
|
1764 | def __init__(self, object, name): | |
1759 | self.name = _attrname(name) |
|
1765 | self.name = _attrname(name) | |
1760 |
|
1766 | |||
1761 | try: |
|
1767 | try: | |
1762 | self.value = _getattr(object, name) |
|
1768 | self.value = _getattr(object, name) | |
1763 | except (KeyboardInterrupt, SystemExit): |
|
1769 | except (KeyboardInterrupt, SystemExit): | |
1764 | raise |
|
1770 | raise | |
1765 | except Exception, exc: |
|
1771 | except Exception, exc: | |
1766 | if exc.__class__.__module__ == "exceptions": |
|
1772 | if exc.__class__.__module__ == "exceptions": | |
1767 | self.value = exc.__class__.__name__ |
|
1773 | self.value = exc.__class__.__name__ | |
1768 | else: |
|
1774 | else: | |
1769 | self.value = "%s.%s" % \ |
|
1775 | self.value = "%s.%s" % \ | |
1770 | (exc.__class__.__module__, exc.__class__.__name__) |
|
1776 | (exc.__class__.__module__, exc.__class__.__name__) | |
1771 | self.type = self.value |
|
1777 | self.type = self.value | |
1772 | else: |
|
1778 | else: | |
1773 | t = type(self.value) |
|
1779 | t = type(self.value) | |
1774 | if t.__module__ == "__builtin__": |
|
1780 | if t.__module__ == "__builtin__": | |
1775 | self.type = t.__name__ |
|
1781 | self.type = t.__name__ | |
1776 | else: |
|
1782 | else: | |
1777 | self.type = "%s.%s" % (t.__module__, t.__name__) |
|
1783 | self.type = "%s.%s" % (t.__module__, t.__name__) | |
1778 |
|
1784 | |||
1779 | doc = None |
|
1785 | doc = None | |
1780 | if isinstance(name, basestring): |
|
1786 | if isinstance(name, basestring): | |
1781 | if name.endswith("()"): |
|
1787 | if name.endswith("()"): | |
1782 | doc = getattr(getattr(object, name[:-2]), "__doc__", None) |
|
1788 | doc = getattr(getattr(object, name[:-2]), "__doc__", None) | |
1783 | else: |
|
1789 | else: | |
1784 | try: |
|
1790 | try: | |
1785 | meta = getattr(type(object), name) |
|
1791 | meta = getattr(type(object), name) | |
1786 | except AttributeError: |
|
1792 | except AttributeError: | |
1787 | pass |
|
1793 | pass | |
1788 | else: |
|
1794 | else: | |
1789 | if isinstance(meta, property): |
|
1795 | if isinstance(meta, property): | |
1790 | doc = getattr(meta, "__doc__", None) |
|
1796 | doc = getattr(meta, "__doc__", None) | |
1791 | elif callable(name): |
|
1797 | elif callable(name): | |
1792 | doc = getattr(name, "__doc__", None) |
|
1798 | doc = getattr(name, "__doc__", None) | |
1793 | if isinstance(doc, basestring): |
|
1799 | if isinstance(doc, basestring): | |
1794 | doc = doc.strip() |
|
1800 | doc = doc.strip() | |
1795 | self.doc = doc |
|
1801 | self.doc = doc | |
1796 |
|
1802 | |||
1797 | def __xattrs__(self, mode): |
|
1803 | def __xattrs__(self, mode): | |
1798 | return ("name", "type", "doc", "value") |
|
1804 | return ("name", "type", "doc", "value") | |
1799 |
|
1805 | |||
1800 |
|
1806 | |||
1801 | try: |
|
1807 | try: | |
1802 | from ibrowse import ibrowse |
|
1808 | from ibrowse import ibrowse | |
1803 | except ImportError: |
|
1809 | except ImportError: | |
1804 | # No curses (probably Windows) => use ``idump`` as the default display. |
|
1810 | # No curses (probably Windows) => use ``idump`` as the default display. | |
1805 | defaultdisplay = idump |
|
1811 | defaultdisplay = idump | |
1806 | else: |
|
1812 | else: | |
1807 | defaultdisplay = ibrowse |
|
1813 | defaultdisplay = ibrowse | |
1808 | __all__.append("ibrowse") |
|
1814 | __all__.append("ibrowse") | |
1809 |
|
1815 | |||
1810 |
|
1816 | |||
1811 | # If we're running under IPython, install an IPython displayhook that |
|
1817 | # If we're running under IPython, install an IPython displayhook that | |
1812 | # returns the object from Display.display(), else install a displayhook |
|
1818 | # returns the object from Display.display(), else install a displayhook | |
1813 | # directly as sys.displayhook |
|
1819 | # directly as sys.displayhook | |
1814 | api = None |
|
1820 | api = None | |
1815 | if ipapi is not None: |
|
1821 | if ipapi is not None: | |
1816 | try: |
|
1822 | try: | |
1817 | api = ipapi.get() |
|
1823 | api = ipapi.get() | |
1818 | except AttributeError: |
|
1824 | except AttributeError: | |
1819 | pass |
|
1825 | pass | |
1820 |
|
1826 | |||
1821 | if api is not None: |
|
1827 | if api is not None: | |
1822 | def displayhook(self, obj): |
|
1828 | def displayhook(self, obj): | |
1823 | if isinstance(obj, type) and issubclass(obj, Table): |
|
1829 | if isinstance(obj, type) and issubclass(obj, Table): | |
1824 | obj = obj() |
|
1830 | obj = obj() | |
1825 | if isinstance(obj, Table): |
|
1831 | if isinstance(obj, Table): | |
1826 | obj = obj | defaultdisplay |
|
1832 | obj = obj | defaultdisplay | |
1827 | if isinstance(obj, Display): |
|
1833 | if isinstance(obj, Display): | |
1828 | return obj.display() |
|
1834 | return obj.display() | |
1829 | else: |
|
1835 | else: | |
1830 | raise ipapi.TryNext |
|
1836 | raise ipapi.TryNext | |
1831 | api.set_hook("result_display", displayhook) |
|
1837 | api.set_hook("result_display", displayhook) | |
1832 | else: |
|
1838 | else: | |
1833 | def installdisplayhook(): |
|
1839 | def installdisplayhook(): | |
1834 | _originalhook = sys.displayhook |
|
1840 | _originalhook = sys.displayhook | |
1835 | def displayhook(obj): |
|
1841 | def displayhook(obj): | |
1836 | if isinstance(obj, type) and issubclass(obj, Table): |
|
1842 | if isinstance(obj, type) and issubclass(obj, Table): | |
1837 | obj = obj() |
|
1843 | obj = obj() | |
1838 | if isinstance(obj, Table): |
|
1844 | if isinstance(obj, Table): | |
1839 | obj = obj | defaultdisplay |
|
1845 | obj = obj | defaultdisplay | |
1840 | if isinstance(obj, Display): |
|
1846 | if isinstance(obj, Display): | |
1841 | return obj.display() |
|
1847 | return obj.display() | |
1842 | else: |
|
1848 | else: | |
1843 | _originalhook(obj) |
|
1849 | _originalhook(obj) | |
1844 | sys.displayhook = displayhook |
|
1850 | sys.displayhook = displayhook | |
1845 | installdisplayhook() |
|
1851 | installdisplayhook() |
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