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1 | ===================================== |
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1 | ===================================== | |
2 | Introduction to IPython configuration |
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2 | Introduction to IPython configuration | |
3 | ===================================== |
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3 | ===================================== | |
4 |
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4 | |||
5 |
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5 | |||
6 | Setting configurable options |
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6 | Setting configurable options | |
7 | ============================ |
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7 | ============================ | |
8 |
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8 | |||
9 |
Many of IPython's classes have configurable attributes |
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9 | Many of IPython's classes have configurable attributes (see | |
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10 | :doc:`options/index` for the list). These can be | |||
10 | configured in several ways. |
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11 | configured in several ways. | |
11 |
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12 | |||
12 | Python config files |
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13 | Python config files | |
13 | ------------------- |
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14 | ------------------- | |
14 |
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15 | |||
15 | To create the blank config files, run:: |
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16 | To create the blank config files, run:: | |
16 |
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17 | |||
17 | ipython profile create [profilename] |
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18 | ipython profile create [profilename] | |
18 |
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19 | |||
19 | If you leave out the profile name, the files will be created for the |
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20 | If you leave out the profile name, the files will be created for the | |
20 | ``default`` profile (see :ref:`profiles`). These will typically be |
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21 | ``default`` profile (see :ref:`profiles`). These will typically be | |
21 | located in :file:`~/.ipython/profile_default/`, and will be named |
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22 | located in :file:`~/.ipython/profile_default/`, and will be named | |
22 | :file:`ipython_config.py`, :file:`ipython_notebook_config.py`, etc. |
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23 | :file:`ipython_config.py`, :file:`ipython_notebook_config.py`, etc. | |
23 | The settings in :file:`ipython_config.py` apply to all IPython commands. |
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24 | The settings in :file:`ipython_config.py` apply to all IPython commands. | |
24 |
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25 | |||
25 | The files typically start by getting the root config object:: |
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26 | The files typically start by getting the root config object:: | |
26 |
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27 | |||
27 | c = get_config() |
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28 | c = get_config() | |
28 |
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29 | |||
29 | You can then configure class attributes like this:: |
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30 | You can then configure class attributes like this:: | |
30 |
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31 | |||
31 | c.InteractiveShell.automagic = False |
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32 | c.InteractiveShell.automagic = False | |
32 |
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33 | |||
33 | Be careful with spelling--incorrect names will simply be ignored, with |
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34 | Be careful with spelling--incorrect names will simply be ignored, with | |
34 | no error. |
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35 | no error. | |
35 |
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36 | |||
36 | To add to a collection which may have already been defined elsewhere, |
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37 | To add to a collection which may have already been defined elsewhere, | |
37 | you can use methods like those found on lists, dicts and sets: append, |
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38 | you can use methods like those found on lists, dicts and sets: append, | |
38 | extend, :meth:`~IPython.config.loader.LazyConfigValue.prepend` (like |
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39 | extend, :meth:`~IPython.config.loader.LazyConfigValue.prepend` (like | |
39 | extend, but at the front), add and update (which works both for dicts |
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40 | extend, but at the front), add and update (which works both for dicts | |
40 | and sets):: |
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41 | and sets):: | |
41 |
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42 | |||
42 | c.InteractiveShellApp.extensions.append('rmagic') |
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43 | c.InteractiveShellApp.extensions.append('rmagic') | |
43 |
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44 | |||
44 | .. versionadded:: 2.0 |
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45 | .. versionadded:: 2.0 | |
45 | list, dict and set methods for config values |
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46 | list, dict and set methods for config values | |
46 |
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47 | |||
47 | Example config file |
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48 | Example config file | |
48 | ``````````````````` |
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49 | ``````````````````` | |
49 |
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50 | |||
50 | :: |
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51 | :: | |
51 |
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52 | |||
52 | # sample ipython_config.py |
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53 | # sample ipython_config.py | |
53 | c = get_config() |
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54 | c = get_config() | |
54 |
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55 | |||
55 | c.TerminalIPythonApp.display_banner = True |
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56 | c.TerminalIPythonApp.display_banner = True | |
56 | c.InteractiveShellApp.log_level = 20 |
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57 | c.InteractiveShellApp.log_level = 20 | |
57 | c.InteractiveShellApp.extensions = [ |
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58 | c.InteractiveShellApp.extensions = [ | |
58 | 'myextension' |
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59 | 'myextension' | |
59 | ] |
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60 | ] | |
60 | c.InteractiveShellApp.exec_lines = [ |
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61 | c.InteractiveShellApp.exec_lines = [ | |
61 | 'import numpy', |
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62 | 'import numpy', | |
62 | 'import scipy' |
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63 | 'import scipy' | |
63 | ] |
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64 | ] | |
64 | c.InteractiveShellApp.exec_files = [ |
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65 | c.InteractiveShellApp.exec_files = [ | |
65 | 'mycode.py', |
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66 | 'mycode.py', | |
66 | 'fancy.ipy' |
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67 | 'fancy.ipy' | |
67 | ] |
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68 | ] | |
68 | c.InteractiveShell.autoindent = True |
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69 | c.InteractiveShell.autoindent = True | |
69 | c.InteractiveShell.colors = 'LightBG' |
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70 | c.InteractiveShell.colors = 'LightBG' | |
70 | c.InteractiveShell.confirm_exit = False |
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71 | c.InteractiveShell.confirm_exit = False | |
71 | c.InteractiveShell.deep_reload = True |
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72 | c.InteractiveShell.deep_reload = True | |
72 | c.InteractiveShell.editor = 'nano' |
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73 | c.InteractiveShell.editor = 'nano' | |
73 | c.InteractiveShell.xmode = 'Context' |
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74 | c.InteractiveShell.xmode = 'Context' | |
74 |
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75 | |||
75 | c.PromptManager.in_template = 'In [\#]: ' |
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76 | c.PromptManager.in_template = 'In [\#]: ' | |
76 | c.PromptManager.in2_template = ' .\D.: ' |
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77 | c.PromptManager.in2_template = ' .\D.: ' | |
77 | c.PromptManager.out_template = 'Out[\#]: ' |
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78 | c.PromptManager.out_template = 'Out[\#]: ' | |
78 | c.PromptManager.justify = True |
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79 | c.PromptManager.justify = True | |
79 |
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80 | |||
80 | c.PrefilterManager.multi_line_specials = True |
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81 | c.PrefilterManager.multi_line_specials = True | |
81 |
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82 | |||
82 | c.AliasManager.user_aliases = [ |
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83 | c.AliasManager.user_aliases = [ | |
83 | ('la', 'ls -al') |
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84 | ('la', 'ls -al') | |
84 | ] |
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85 | ] | |
85 |
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86 | |||
86 |
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87 | |||
87 | Command line arguments |
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88 | Command line arguments | |
88 | ---------------------- |
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89 | ---------------------- | |
89 |
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90 | |||
90 | Every configurable value can be set from the command line, using this |
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91 | Every configurable value can be set from the command line, using this | |
91 | syntax:: |
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92 | syntax:: | |
92 |
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93 | |||
93 | ipython --ClassName.attribute=value |
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94 | ipython --ClassName.attribute=value | |
94 |
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95 | |||
95 | Many frequently used options have short aliases and flags, such as |
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96 | Many frequently used options have short aliases and flags, such as | |
96 | ``--matplotlib`` (to integrate with a matplotlib GUI event loop) or |
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97 | ``--matplotlib`` (to integrate with a matplotlib GUI event loop) or | |
97 | ``--pdb`` (automatic post-mortem debugging of exceptions). |
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98 | ``--pdb`` (automatic post-mortem debugging of exceptions). | |
98 |
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99 | |||
99 | To see all of these abbreviated options, run:: |
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100 | To see all of these abbreviated options, run:: | |
100 |
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101 | |||
101 | ipython --help |
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102 | ipython --help | |
102 | ipython notebook --help |
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103 | ipython notebook --help | |
103 | # etc. |
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104 | # etc. | |
104 |
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105 | |||
105 | The config magic |
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106 | The config magic | |
106 | ---------------- |
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107 | ---------------- | |
107 |
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108 | |||
108 | You can also modify config from inside IPython, using a magic command:: |
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109 | You can also modify config from inside IPython, using a magic command:: | |
109 |
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110 | |||
110 | %config IPCompleter.greedy = True |
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111 | %config IPCompleter.greedy = True | |
111 |
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112 | |||
112 | At present, this only affects the current session - changes you make to |
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113 | At present, this only affects the current session - changes you make to | |
113 | config are not saved anywhere. |
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114 | config are not saved anywhere. | |
114 |
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115 | |||
115 | .. _profiles: |
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116 | .. _profiles: | |
116 |
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117 | |||
117 | Profiles |
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118 | Profiles | |
118 | ======== |
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119 | ======== | |
119 |
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120 | |||
120 | IPython can use multiple profiles, with separate configuration and |
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121 | IPython can use multiple profiles, with separate configuration and | |
121 | history. By default, if you don't specify a profile, IPython always runs |
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122 | history. By default, if you don't specify a profile, IPython always runs | |
122 | in the ``default`` profile. To use a new profile:: |
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123 | in the ``default`` profile. To use a new profile:: | |
123 |
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124 | |||
124 | ipython profile create foo # create the profile foo |
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125 | ipython profile create foo # create the profile foo | |
125 | ipython --profile=foo # start IPython using the new profile |
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126 | ipython --profile=foo # start IPython using the new profile | |
126 |
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127 | |||
127 | Profiles are typically stored in :ref:`ipythondir`, but you can also keep |
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128 | Profiles are typically stored in :ref:`ipythondir`, but you can also keep | |
128 | a profile in the current working directory, for example to distribute it |
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129 | a profile in the current working directory, for example to distribute it | |
129 | with a project. To find a profile directory on the filesystem:: |
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130 | with a project. To find a profile directory on the filesystem:: | |
130 |
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131 | |||
131 | ipython locate profile foo |
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132 | ipython locate profile foo | |
132 |
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133 | |||
133 | .. _ipythondir: |
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134 | .. _ipythondir: | |
134 |
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135 | |||
135 | The IPython directory |
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136 | The IPython directory | |
136 | ===================== |
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137 | ===================== | |
137 |
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138 | |||
138 | IPython stores its files---config, command history and extensions---in |
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139 | IPython stores its files---config, command history and extensions---in | |
139 | the directory :file:`~/.ipython/` by default. |
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140 | the directory :file:`~/.ipython/` by default. | |
140 |
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141 | |||
141 | .. envvar:: IPYTHONDIR |
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142 | .. envvar:: IPYTHONDIR | |
142 |
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143 | |||
143 | If set, this environment variable should be the path to a directory, |
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144 | If set, this environment variable should be the path to a directory, | |
144 | which IPython will use for user data. IPython will create it if it |
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145 | which IPython will use for user data. IPython will create it if it | |
145 | does not exist. |
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146 | does not exist. | |
146 |
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147 | |||
147 | .. option:: --ipython-dir=<path> |
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148 | .. option:: --ipython-dir=<path> | |
148 |
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149 | |||
149 | This command line option can also be used to override the default |
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150 | This command line option can also be used to override the default | |
150 | IPython directory. |
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151 | IPython directory. |
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