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@@ -1,184 +1,186 b'' | |||||
1 | """Tests for debugging machinery. |
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1 | """Tests for debugging machinery. | |
2 | """ |
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2 | """ | |
3 | from __future__ import print_function |
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3 | from __future__ import print_function | |
4 | #----------------------------------------------------------------------------- |
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4 | #----------------------------------------------------------------------------- | |
5 | # Copyright (c) 2012, The IPython Development Team. |
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5 | # Copyright (c) 2012, The IPython Development Team. | |
6 | # |
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6 | # | |
7 | # Distributed under the terms of the Modified BSD License. |
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7 | # Distributed under the terms of the Modified BSD License. | |
8 | # |
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8 | # | |
9 | # The full license is in the file COPYING.txt, distributed with this software. |
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9 | # The full license is in the file COPYING.txt, distributed with this software. | |
10 | #----------------------------------------------------------------------------- |
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10 | #----------------------------------------------------------------------------- | |
11 |
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11 | |||
12 | #----------------------------------------------------------------------------- |
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12 | #----------------------------------------------------------------------------- | |
13 | # Imports |
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13 | # Imports | |
14 | #----------------------------------------------------------------------------- |
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14 | #----------------------------------------------------------------------------- | |
15 |
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15 | |||
16 | import sys |
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16 | import sys | |
17 |
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17 | |||
18 | # third-party |
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18 | # third-party | |
19 | import nose.tools as nt |
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19 | import nose.tools as nt | |
20 |
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20 | |||
21 | # Our own |
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21 | # Our own | |
22 | from IPython.core import debugger |
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22 | from IPython.core import debugger | |
23 |
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23 | |||
24 | #----------------------------------------------------------------------------- |
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24 | #----------------------------------------------------------------------------- | |
25 | # Helper classes, from CPython's Pdb test suite |
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25 | # Helper classes, from CPython's Pdb test suite | |
26 | #----------------------------------------------------------------------------- |
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26 | #----------------------------------------------------------------------------- | |
27 |
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27 | |||
28 | class _FakeInput(object): |
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28 | class _FakeInput(object): | |
29 | """ |
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29 | """ | |
30 | A fake input stream for pdb's interactive debugger. Whenever a |
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30 | A fake input stream for pdb's interactive debugger. Whenever a | |
31 | line is read, print it (to simulate the user typing it), and then |
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31 | line is read, print it (to simulate the user typing it), and then | |
32 | return it. The set of lines to return is specified in the |
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32 | return it. The set of lines to return is specified in the | |
33 | constructor; they should not have trailing newlines. |
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33 | constructor; they should not have trailing newlines. | |
34 | """ |
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34 | """ | |
35 | def __init__(self, lines): |
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35 | def __init__(self, lines): | |
36 | self.lines = iter(lines) |
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36 | self.lines = iter(lines) | |
37 |
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37 | |||
38 | def readline(self): |
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38 | def readline(self): | |
39 | line = next(self.lines) |
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39 | line = next(self.lines) | |
40 | print(line) |
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40 | print(line) | |
41 | return line+'\n' |
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41 | return line+'\n' | |
42 |
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42 | |||
43 | class PdbTestInput(object): |
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43 | class PdbTestInput(object): | |
44 | """Context manager that makes testing Pdb in doctests easier.""" |
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44 | """Context manager that makes testing Pdb in doctests easier.""" | |
45 |
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45 | |||
46 | def __init__(self, input): |
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46 | def __init__(self, input): | |
47 | self.input = input |
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47 | self.input = input | |
48 |
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48 | |||
49 | def __enter__(self): |
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49 | def __enter__(self): | |
50 | self.real_stdin = sys.stdin |
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50 | self.real_stdin = sys.stdin | |
51 | sys.stdin = _FakeInput(self.input) |
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51 | sys.stdin = _FakeInput(self.input) | |
52 |
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52 | |||
53 | def __exit__(self, *exc): |
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53 | def __exit__(self, *exc): | |
54 | sys.stdin = self.real_stdin |
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54 | sys.stdin = self.real_stdin | |
55 |
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55 | |||
56 | #----------------------------------------------------------------------------- |
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56 | #----------------------------------------------------------------------------- | |
57 | # Tests |
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57 | # Tests | |
58 | #----------------------------------------------------------------------------- |
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58 | #----------------------------------------------------------------------------- | |
59 |
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59 | |||
60 | def test_longer_repr(): |
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60 | def test_longer_repr(): | |
61 | try: |
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61 | try: | |
62 | from reprlib import repr as trepr # Py 3 |
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62 | from reprlib import repr as trepr # Py 3 | |
63 | except ImportError: |
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63 | except ImportError: | |
64 | from repr import repr as trepr # Py 2 |
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64 | from repr import repr as trepr # Py 2 | |
65 |
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65 | |||
66 | a = '1234567890'* 7 |
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66 | a = '1234567890'* 7 | |
67 | ar = "'1234567890123456789012345678901234567890123456789012345678901234567890'" |
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67 | ar = "'1234567890123456789012345678901234567890123456789012345678901234567890'" | |
68 | a_trunc = "'123456789012...8901234567890'" |
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68 | a_trunc = "'123456789012...8901234567890'" | |
69 | nt.assert_equal(trepr(a), a_trunc) |
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69 | nt.assert_equal(trepr(a), a_trunc) | |
70 | # The creation of our tracer modifies the repr module's repr function |
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70 | # The creation of our tracer modifies the repr module's repr function | |
71 | # in-place, since that global is used directly by the stdlib's pdb module. |
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71 | # in-place, since that global is used directly by the stdlib's pdb module. | |
72 | t = debugger.Tracer() |
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72 | t = debugger.Tracer() | |
73 | nt.assert_equal(trepr(a), ar) |
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73 | nt.assert_equal(trepr(a), ar) | |
74 |
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74 | |||
75 | def test_ipdb_magics(): |
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75 | def test_ipdb_magics(): | |
76 | '''Test calling some IPython magics from ipdb. |
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76 | '''Test calling some IPython magics from ipdb. | |
77 |
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77 | |||
78 | First, set up some test functions and classes which we can inspect. |
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78 | First, set up some test functions and classes which we can inspect. | |
79 |
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79 | |||
80 | >>> class ExampleClass(object): |
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80 | >>> class ExampleClass(object): | |
81 | ... """Docstring for ExampleClass.""" |
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81 | ... """Docstring for ExampleClass.""" | |
82 | ... def __init__(self): |
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82 | ... def __init__(self): | |
83 | ... """Docstring for ExampleClass.__init__""" |
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83 | ... """Docstring for ExampleClass.__init__""" | |
84 | ... pass |
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84 | ... pass | |
85 | ... def __str__(self): |
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85 | ... def __str__(self): | |
86 | ... return "ExampleClass()" |
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86 | ... return "ExampleClass()" | |
87 |
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87 | |||
88 | >>> def example_function(x, y, z="hello"): |
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88 | >>> def example_function(x, y, z="hello"): | |
89 | ... """Docstring for example_function.""" |
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89 | ... """Docstring for example_function.""" | |
90 | ... pass |
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90 | ... pass | |
91 |
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91 | |||
92 | >>> old_trace = sys.gettrace() |
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92 | >>> old_trace = sys.gettrace() | |
93 |
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93 | |||
94 | Create a function which triggers ipdb. |
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94 | Create a function which triggers ipdb. | |
95 |
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95 | |||
96 | >>> def trigger_ipdb(): |
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96 | >>> def trigger_ipdb(): | |
97 | ... a = ExampleClass() |
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97 | ... a = ExampleClass() | |
98 | ... debugger.Pdb().set_trace() |
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98 | ... debugger.Pdb().set_trace() | |
99 |
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99 | |||
100 | >>> with PdbTestInput([ |
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100 | >>> with PdbTestInput([ | |
101 | ... 'pdef example_function', |
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101 | ... 'pdef example_function', | |
102 | ... 'pdoc ExampleClass', |
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102 | ... 'pdoc ExampleClass', | |
103 | ... 'up', |
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103 | ... 'up', | |
104 | ... 'down', |
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104 | ... 'down', | |
105 | ... 'list', |
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105 | ... 'list', | |
106 | ... 'pinfo a', |
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106 | ... 'pinfo a', | |
107 | ... 'll', |
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107 | ... 'll', | |
108 | ... 'continue', |
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108 | ... 'continue', | |
109 | ... ]): |
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109 | ... ]): | |
110 | ... trigger_ipdb() |
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110 | ... trigger_ipdb() | |
111 | --Return-- |
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111 | --Return-- | |
112 | None |
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112 | None | |
113 | > <doctest ...>(3)trigger_ipdb() |
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113 | > <doctest ...>(3)trigger_ipdb() | |
114 | 1 def trigger_ipdb(): |
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114 | 1 def trigger_ipdb(): | |
115 | 2 a = ExampleClass() |
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115 | 2 a = ExampleClass() | |
116 | ----> 3 debugger.Pdb().set_trace() |
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116 | ----> 3 debugger.Pdb().set_trace() | |
117 | <BLANKLINE> |
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117 | <BLANKLINE> | |
118 | ipdb> pdef example_function |
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118 | ipdb> pdef example_function | |
119 | example_function(x, y, z='hello') |
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119 | example_function(x, y, z='hello') | |
120 | ipdb> pdoc ExampleClass |
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120 | ipdb> pdoc ExampleClass | |
121 | Class docstring: |
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121 | Class docstring: | |
122 | Docstring for ExampleClass. |
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122 | Docstring for ExampleClass. | |
123 | Init docstring: |
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123 | Init docstring: | |
124 | Docstring for ExampleClass.__init__ |
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124 | Docstring for ExampleClass.__init__ | |
125 | ipdb> up |
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125 | ipdb> up | |
126 | > <doctest ...>(11)<module>() |
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126 | > <doctest ...>(11)<module>() | |
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127 | 7 'pinfo a', | |||
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128 | 8 'll', | |||
127 | 9 'continue', |
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129 | 9 'continue', | |
128 | 10 ]): |
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130 | 10 ]): | |
129 | ---> 11 trigger_ipdb() |
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131 | ---> 11 trigger_ipdb() | |
130 | <BLANKLINE> |
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132 | <BLANKLINE> | |
131 | ipdb> down |
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133 | ipdb> down | |
132 | None |
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134 | None | |
133 | > <doctest ...>(3)trigger_ipdb() |
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135 | > <doctest ...>(3)trigger_ipdb() | |
134 | 1 def trigger_ipdb(): |
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136 | 1 def trigger_ipdb(): | |
135 | 2 a = ExampleClass() |
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137 | 2 a = ExampleClass() | |
136 | ----> 3 debugger.Pdb().set_trace() |
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138 | ----> 3 debugger.Pdb().set_trace() | |
137 | <BLANKLINE> |
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139 | <BLANKLINE> | |
138 | ipdb> list |
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140 | ipdb> list | |
139 | 1 def trigger_ipdb(): |
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141 | 1 def trigger_ipdb(): | |
140 | 2 a = ExampleClass() |
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142 | 2 a = ExampleClass() | |
141 | ----> 3 debugger.Pdb().set_trace() |
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143 | ----> 3 debugger.Pdb().set_trace() | |
142 | <BLANKLINE> |
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144 | <BLANKLINE> | |
143 | ipdb> pinfo a |
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145 | ipdb> pinfo a | |
144 | Type: ExampleClass |
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146 | Type: ExampleClass | |
145 | String form: ExampleClass() |
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147 | String form: ExampleClass() | |
146 | Namespace: Local... |
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148 | Namespace: Local... | |
147 | Docstring: Docstring for ExampleClass. |
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149 | Docstring: Docstring for ExampleClass. | |
148 | Init docstring: Docstring for ExampleClass.__init__ |
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150 | Init docstring: Docstring for ExampleClass.__init__ | |
149 | ipdb> ll |
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151 | ipdb> ll | |
150 | 1 def trigger_ipdb(): |
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152 | 1 def trigger_ipdb(): | |
151 | 2 a = ExampleClass() |
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153 | 2 a = ExampleClass() | |
152 | ----> 3 debugger.Pdb().set_trace() |
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154 | ----> 3 debugger.Pdb().set_trace() | |
153 | <BLANKLINE> |
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155 | <BLANKLINE> | |
154 | ipdb> continue |
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156 | ipdb> continue | |
155 |
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157 | |||
156 | Restore previous trace function, e.g. for coverage.py |
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158 | Restore previous trace function, e.g. for coverage.py | |
157 |
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159 | |||
158 | >>> sys.settrace(old_trace) |
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160 | >>> sys.settrace(old_trace) | |
159 | ''' |
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161 | ''' | |
160 |
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162 | |||
161 | def test_ipdb_magics2(): |
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163 | def test_ipdb_magics2(): | |
162 | '''Test ipdb with a very short function. |
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164 | '''Test ipdb with a very short function. | |
163 |
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165 | |||
164 | >>> old_trace = sys.gettrace() |
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166 | >>> old_trace = sys.gettrace() | |
165 |
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167 | |||
166 | >>> def bar(): |
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168 | >>> def bar(): | |
167 | ... pass |
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169 | ... pass | |
168 |
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170 | |||
169 | Run ipdb. |
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171 | Run ipdb. | |
170 |
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172 | |||
171 | >>> with PdbTestInput([ |
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173 | >>> with PdbTestInput([ | |
172 | ... 'continue', |
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174 | ... 'continue', | |
173 | ... ]): |
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175 | ... ]): | |
174 | ... debugger.Pdb().runcall(bar) |
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176 | ... debugger.Pdb().runcall(bar) | |
175 | > <doctest ...>(2)bar() |
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177 | > <doctest ...>(2)bar() | |
176 | 1 def bar(): |
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178 | 1 def bar(): | |
177 | ----> 2 pass |
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179 | ----> 2 pass | |
178 | <BLANKLINE> |
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180 | <BLANKLINE> | |
179 | ipdb> continue |
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181 | ipdb> continue | |
180 |
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182 | |||
181 | Restore previous trace function, e.g. for coverage.py |
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183 | Restore previous trace function, e.g. for coverage.py | |
182 |
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184 | |||
183 | >>> sys.settrace(old_trace) |
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185 | >>> sys.settrace(old_trace) | |
184 | ''' |
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186 | ''' |
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