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@@ -1,623 +1,623 b'' | |||
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1 | 1 | # -*- coding: utf-8 -*- |
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2 | 2 | """ |
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3 | 3 | Pdb debugger class. |
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4 | 4 | |
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5 | 5 | Modified from the standard pdb.Pdb class to avoid including readline, so that |
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6 | 6 | the command line completion of other programs which include this isn't |
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7 | 7 | damaged. |
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8 | 8 | |
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9 | 9 | In the future, this class will be expanded with improvements over the standard |
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10 | 10 | pdb. |
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11 | 11 | |
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12 | 12 | The code in this file is mainly lifted out of cmd.py in Python 2.2, with minor |
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13 | 13 | changes. Licensing should therefore be under the standard Python terms. For |
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14 | 14 | details on the PSF (Python Software Foundation) standard license, see: |
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15 | 15 | |
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16 | 16 | http://www.python.org/2.2.3/license.html""" |
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17 | 17 | |
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18 | 18 | #***************************************************************************** |
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19 | 19 | # |
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20 | 20 | # This file is licensed under the PSF license. |
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21 | 21 | # |
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22 | 22 | # Copyright (C) 2001 Python Software Foundation, www.python.org |
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23 | 23 | # Copyright (C) 2005-2006 Fernando Perez. <fperez@colorado.edu> |
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24 | 24 | # |
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25 | 25 | # |
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26 | 26 | #***************************************************************************** |
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27 | 27 | from __future__ import print_function |
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28 | 28 | |
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29 | 29 | import bdb |
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30 | 30 | import functools |
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31 | 31 | import inspect |
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32 | 32 | import sys |
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33 | 33 | import warnings |
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34 | 34 | |
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35 | 35 | from IPython import get_ipython |
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36 | 36 | from IPython.utils import PyColorize, ulinecache |
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37 | 37 | from IPython.utils import coloransi, py3compat |
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38 | 38 | from IPython.core.excolors import exception_colors |
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39 | 39 | from IPython.testing.skipdoctest import skip_doctest |
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40 | 40 | |
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41 | 41 | |
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42 | 42 | prompt = 'ipdb> ' |
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43 | 43 | |
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44 | 44 | #We have to check this directly from sys.argv, config struct not yet available |
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45 | 45 | from pdb import Pdb as OldPdb |
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46 | 46 | |
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47 | 47 | # Allow the set_trace code to operate outside of an ipython instance, even if |
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48 | 48 | # it does so with some limitations. The rest of this support is implemented in |
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49 | 49 | # the Tracer constructor. |
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50 | 50 | |
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51 | 51 | def make_arrow(pad): |
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52 | 52 | """generate the leading arrow in front of traceback or debugger""" |
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53 | 53 | if pad >= 2: |
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54 | 54 | return '-'*(pad-2) + '> ' |
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55 | 55 | elif pad == 1: |
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56 | 56 | return '>' |
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57 | 57 | return '' |
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58 | 58 | |
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59 | 59 | |
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60 | 60 | def BdbQuit_excepthook(et, ev, tb, excepthook=None): |
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61 | 61 | """Exception hook which handles `BdbQuit` exceptions. |
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62 | 62 | |
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63 | 63 | All other exceptions are processed using the `excepthook` |
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64 | 64 | parameter. |
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65 | 65 | """ |
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66 | 66 | warnings.warn("`BdbQuit_excepthook` is deprecated since version 5.1", |
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67 | 67 | DeprecationWarning) |
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68 | 68 | if et==bdb.BdbQuit: |
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69 | 69 | print('Exiting Debugger.') |
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70 | 70 | elif excepthook is not None: |
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71 | 71 | excepthook(et, ev, tb) |
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72 | 72 | else: |
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73 | 73 | # Backwards compatibility. Raise deprecation warning? |
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74 | 74 | BdbQuit_excepthook.excepthook_ori(et,ev,tb) |
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75 | 75 | |
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76 | 76 | |
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77 | 77 | def BdbQuit_IPython_excepthook(self,et,ev,tb,tb_offset=None): |
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78 | 78 | warnings.warn( |
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79 | 79 | "`BdbQuit_IPython_excepthook` is deprecated since version 5.1", |
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80 | 80 | DeprecationWarning) |
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81 | 81 | print('Exiting Debugger.') |
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82 | 82 | |
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83 | 83 | |
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84 | 84 | class Tracer(object): |
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85 | 85 | """ |
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86 | 86 | DEPRECATED |
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87 | 87 | |
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88 | 88 | Class for local debugging, similar to pdb.set_trace. |
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89 | 89 | |
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90 | 90 | Instances of this class, when called, behave like pdb.set_trace, but |
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91 | 91 | providing IPython's enhanced capabilities. |
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92 | 92 | |
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93 | 93 | This is implemented as a class which must be initialized in your own code |
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94 | 94 | and not as a standalone function because we need to detect at runtime |
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95 | 95 | whether IPython is already active or not. That detection is done in the |
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96 | 96 | constructor, ensuring that this code plays nicely with a running IPython, |
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97 | 97 | while functioning acceptably (though with limitations) if outside of it. |
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98 | 98 | """ |
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99 | 99 | |
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100 | 100 | @skip_doctest |
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101 | 101 | def __init__(self, colors=None): |
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102 | 102 | """ |
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103 | 103 | DEPRECATED |
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104 | 104 | |
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105 | 105 | Create a local debugger instance. |
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106 | 106 | |
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107 | 107 | Parameters |
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108 | 108 | ---------- |
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109 | 109 | |
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110 | 110 | colors : str, optional |
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111 | 111 | The name of the color scheme to use, it must be one of IPython's |
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112 | 112 | valid color schemes. If not given, the function will default to |
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113 | 113 | the current IPython scheme when running inside IPython, and to |
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114 | 114 | 'NoColor' otherwise. |
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115 | 115 | |
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116 | 116 | Examples |
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117 | 117 | -------- |
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118 | 118 | :: |
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119 | 119 | |
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120 | 120 | from IPython.core.debugger import Tracer; debug_here = Tracer() |
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121 | 121 | |
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122 | 122 | Later in your code:: |
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123 | 123 | |
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124 | 124 | debug_here() # -> will open up the debugger at that point. |
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125 | 125 | |
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126 | 126 | Once the debugger activates, you can use all of its regular commands to |
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127 | 127 | step through code, set breakpoints, etc. See the pdb documentation |
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128 | 128 | from the Python standard library for usage details. |
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129 | 129 | """ |
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130 | 130 | warnings.warn("`Tracer` is deprecated since version 5.1, directly use " |
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131 | 131 | "`IPython.core.debugger.Pdb.set_trace()`", |
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132 | 132 | DeprecationWarning) |
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133 | 133 | |
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134 | 134 | ip = get_ipython() |
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135 | 135 | if ip is None: |
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136 | 136 | # Outside of ipython, we set our own exception hook manually |
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137 | 137 | sys.excepthook = functools.partial(BdbQuit_excepthook, |
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138 | 138 | excepthook=sys.excepthook) |
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139 | 139 | def_colors = 'NoColor' |
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140 | 140 | else: |
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141 | 141 | # In ipython, we use its custom exception handler mechanism |
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142 | 142 | def_colors = ip.colors |
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143 | 143 | ip.set_custom_exc((bdb.BdbQuit,), BdbQuit_IPython_excepthook) |
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144 | 144 | |
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145 | 145 | if colors is None: |
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146 | 146 | colors = def_colors |
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147 | 147 | |
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148 | 148 | # The stdlib debugger internally uses a modified repr from the `repr` |
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149 | 149 | # module, that limits the length of printed strings to a hardcoded |
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150 | 150 | # limit of 30 characters. That much trimming is too aggressive, let's |
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151 | 151 | # at least raise that limit to 80 chars, which should be enough for |
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152 | 152 | # most interactive uses. |
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153 | 153 | try: |
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154 | 154 | try: |
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155 | 155 | from reprlib import aRepr # Py 3 |
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156 | 156 | except ImportError: |
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157 | 157 | from repr import aRepr # Py 2 |
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158 | 158 | aRepr.maxstring = 80 |
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159 | 159 | except: |
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160 | 160 | # This is only a user-facing convenience, so any error we encounter |
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161 | 161 | # here can be warned about but can be otherwise ignored. These |
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162 | 162 | # printouts will tell us about problems if this API changes |
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163 | 163 | import traceback |
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164 | 164 | traceback.print_exc() |
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165 | 165 | |
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166 | 166 | self.debugger = Pdb(colors) |
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167 | 167 | |
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168 | 168 | def __call__(self): |
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169 | 169 | """Starts an interactive debugger at the point where called. |
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170 | 170 | |
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171 | 171 | This is similar to the pdb.set_trace() function from the std lib, but |
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172 | 172 | using IPython's enhanced debugger.""" |
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173 | 173 | |
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174 | 174 | self.debugger.set_trace(sys._getframe().f_back) |
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175 | 175 | |
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176 | 176 | |
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177 | 177 | def decorate_fn_with_doc(new_fn, old_fn, additional_text=""): |
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178 | 178 | """Make new_fn have old_fn's doc string. This is particularly useful |
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179 | 179 | for the ``do_...`` commands that hook into the help system. |
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180 | 180 | Adapted from from a comp.lang.python posting |
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181 | 181 | by Duncan Booth.""" |
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182 | 182 | def wrapper(*args, **kw): |
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183 | 183 | return new_fn(*args, **kw) |
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184 | 184 | if old_fn.__doc__: |
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185 | 185 | wrapper.__doc__ = old_fn.__doc__ + additional_text |
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186 | 186 | return wrapper |
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187 | 187 | |
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188 | 188 | |
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189 | 189 | def _file_lines(fname): |
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190 | 190 | """Return the contents of a named file as a list of lines. |
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191 | 191 | |
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192 | 192 | This function never raises an IOError exception: if the file can't be |
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193 | 193 | read, it simply returns an empty list.""" |
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194 | 194 | |
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195 | 195 | try: |
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196 | 196 | outfile = open(fname) |
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197 | 197 | except IOError: |
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198 | 198 | return [] |
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199 | 199 | else: |
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200 | 200 | out = outfile.readlines() |
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201 | 201 | outfile.close() |
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202 | 202 | return out |
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203 | 203 | |
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204 | 204 | |
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205 | 205 | class Pdb(OldPdb, object): |
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206 | 206 | """Modified Pdb class, does not load readline. |
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207 | 207 | |
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208 |
for a standalone version that uses prom |
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208 | for a standalone version that uses prompt_toolkit, see | |
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209 | 209 | `IPython.terminal.debugger.TerminalPdb` and |
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210 | 210 | `IPython.terminal.debugger.set_trace()` |
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211 | 211 | """ |
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212 | 212 | |
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213 | 213 | def __init__(self, color_scheme=None, completekey=None, |
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214 | 214 | stdin=None, stdout=None, context=5): |
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215 | 215 | |
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216 | 216 | # Parent constructor: |
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217 | 217 | try: |
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218 | 218 | self.context = int(context) |
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219 | 219 | if self.context <= 0: |
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220 | 220 | raise ValueError("Context must be a positive integer") |
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221 | 221 | except (TypeError, ValueError): |
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222 | 222 | raise ValueError("Context must be a positive integer") |
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223 | 223 | |
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224 | 224 | OldPdb.__init__(self, completekey, stdin, stdout) |
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225 | 225 | |
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226 | 226 | # IPython changes... |
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227 | 227 | self.shell = get_ipython() |
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228 | 228 | |
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229 | 229 | if self.shell is None: |
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230 | 230 | # No IPython instance running, we must create one |
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231 | 231 | from IPython.terminal.interactiveshell import \ |
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232 | 232 | TerminalInteractiveShell |
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233 | 233 | self.shell = TerminalInteractiveShell.instance() |
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234 | 234 | |
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235 | 235 | if color_scheme is not None: |
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236 | 236 | warnings.warn( |
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237 | 237 | "The `color_scheme` argument is deprecated since version 5.1", |
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238 | 238 | DeprecationWarning) |
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239 | 239 | else: |
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240 | 240 | color_scheme = self.shell.colors |
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241 | 241 | |
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242 | 242 | self.aliases = {} |
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243 | 243 | |
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244 | 244 | # Create color table: we copy the default one from the traceback |
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245 | 245 | # module and add a few attributes needed for debugging |
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246 | 246 | self.color_scheme_table = exception_colors() |
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247 | 247 | |
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248 | 248 | # shorthands |
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249 | 249 | C = coloransi.TermColors |
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250 | 250 | cst = self.color_scheme_table |
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251 | 251 | |
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252 | 252 | cst['NoColor'].colors.prompt = C.NoColor |
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253 | 253 | cst['NoColor'].colors.breakpoint_enabled = C.NoColor |
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254 | 254 | cst['NoColor'].colors.breakpoint_disabled = C.NoColor |
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255 | 255 | |
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256 | 256 | cst['Linux'].colors.prompt = C.Green |
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257 | 257 | cst['Linux'].colors.breakpoint_enabled = C.LightRed |
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258 | 258 | cst['Linux'].colors.breakpoint_disabled = C.Red |
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259 | 259 | |
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260 | 260 | cst['LightBG'].colors.prompt = C.Blue |
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261 | 261 | cst['LightBG'].colors.breakpoint_enabled = C.LightRed |
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262 | 262 | cst['LightBG'].colors.breakpoint_disabled = C.Red |
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263 | 263 | |
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264 | 264 | cst['Neutral'].colors.prompt = C.Blue |
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265 | 265 | cst['Neutral'].colors.breakpoint_enabled = C.LightRed |
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266 | 266 | cst['Neutral'].colors.breakpoint_disabled = C.Red |
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267 | 267 | |
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268 | 268 | self.set_colors(color_scheme) |
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269 | 269 | |
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270 | 270 | # Add a python parser so we can syntax highlight source while |
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271 | 271 | # debugging. |
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272 | 272 | self.parser = PyColorize.Parser() |
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273 | 273 | |
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274 | 274 | # Set the prompt - the default prompt is '(Pdb)' |
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275 | 275 | self.prompt = prompt |
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276 | 276 | |
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277 | 277 | def set_colors(self, scheme): |
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278 | 278 | """Shorthand access to the color table scheme selector method.""" |
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279 | 279 | self.color_scheme_table.set_active_scheme(scheme) |
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280 | 280 | |
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281 | 281 | def trace_dispatch(self, frame, event, arg): |
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282 | 282 | try: |
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283 | 283 | return super(Pdb, self).trace_dispatch(frame, event, arg) |
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284 | 284 | except bdb.BdbQuit: |
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285 | 285 | pass |
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286 | 286 | |
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287 | 287 | def interaction(self, frame, traceback): |
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288 | 288 | try: |
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289 | 289 | OldPdb.interaction(self, frame, traceback) |
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290 | 290 | except KeyboardInterrupt: |
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291 | 291 | sys.stdout.write('\n' + self.shell.get_exception_only()) |
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292 | 292 | |
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293 | 293 | def parseline(self, line): |
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294 | 294 | if line.startswith("!!"): |
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295 | 295 | # Force standard behavior. |
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296 | 296 | return super(Pdb, self).parseline(line[2:]) |
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297 | 297 | # "Smart command mode" from pdb++: don't execute commands if a variable |
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298 | 298 | # with the same name exists. |
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299 | 299 | cmd, arg, newline = super(Pdb, self).parseline(line) |
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300 | 300 | # Fix for #9611: Do not trigger smart command if the command is `exit` |
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301 | 301 | # or `quit` and it would resolve to their *global* value (the |
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302 | 302 | # `ExitAutocall` object). Just checking that it is not present in the |
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303 | 303 | # locals dict is not enough as locals and globals match at the |
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304 | 304 | # toplevel. |
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305 | 305 | if ((cmd in self.curframe.f_locals or cmd in self.curframe.f_globals) |
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306 | 306 | and not (cmd in ["exit", "quit"] |
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307 | 307 | and (self.curframe.f_locals is self.curframe.f_globals |
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308 | 308 | or cmd not in self.curframe.f_locals))): |
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309 | 309 | return super(Pdb, self).parseline("!" + line) |
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310 | 310 | return super(Pdb, self).parseline(line) |
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311 | 311 | |
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312 | 312 | def new_do_up(self, arg): |
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313 | 313 | OldPdb.do_up(self, arg) |
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314 | 314 | do_u = do_up = decorate_fn_with_doc(new_do_up, OldPdb.do_up) |
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315 | 315 | |
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316 | 316 | def new_do_down(self, arg): |
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317 | 317 | OldPdb.do_down(self, arg) |
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318 | 318 | |
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319 | 319 | do_d = do_down = decorate_fn_with_doc(new_do_down, OldPdb.do_down) |
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320 | 320 | |
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321 | 321 | def new_do_frame(self, arg): |
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322 | 322 | OldPdb.do_frame(self, arg) |
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323 | 323 | |
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324 | 324 | def new_do_quit(self, arg): |
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325 | 325 | |
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326 | 326 | if hasattr(self, 'old_all_completions'): |
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327 | 327 | self.shell.Completer.all_completions=self.old_all_completions |
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328 | 328 | |
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329 | 329 | return OldPdb.do_quit(self, arg) |
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330 | 330 | |
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331 | 331 | do_q = do_quit = decorate_fn_with_doc(new_do_quit, OldPdb.do_quit) |
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332 | 332 | |
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333 | 333 | def new_do_restart(self, arg): |
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334 | 334 | """Restart command. In the context of ipython this is exactly the same |
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335 | 335 | thing as 'quit'.""" |
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336 | 336 | self.msg("Restart doesn't make sense here. Using 'quit' instead.") |
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337 | 337 | return self.do_quit(arg) |
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338 | 338 | |
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339 | 339 | def print_stack_trace(self, context=None): |
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340 | 340 | if context is None: |
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341 | 341 | context = self.context |
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342 | 342 | try: |
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343 | 343 | context=int(context) |
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344 | 344 | if context <= 0: |
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345 | 345 | raise ValueError("Context must be a positive integer") |
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346 | 346 | except (TypeError, ValueError): |
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347 | 347 | raise ValueError("Context must be a positive integer") |
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348 | 348 | try: |
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349 | 349 | for frame_lineno in self.stack: |
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350 | 350 | self.print_stack_entry(frame_lineno, context=context) |
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351 | 351 | except KeyboardInterrupt: |
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352 | 352 | pass |
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353 | 353 | |
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354 | 354 | def print_stack_entry(self,frame_lineno, prompt_prefix='\n-> ', |
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355 | 355 | context=None): |
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356 | 356 | if context is None: |
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357 | 357 | context = self.context |
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358 | 358 | try: |
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359 | 359 | context=int(context) |
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360 | 360 | if context <= 0: |
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361 | 361 | raise ValueError("Context must be a positive integer") |
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362 | 362 | except (TypeError, ValueError): |
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363 | 363 | raise ValueError("Context must be a positive integer") |
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364 | 364 | print(self.format_stack_entry(frame_lineno, '', context)) |
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365 | 365 | |
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366 | 366 | # vds: >> |
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367 | 367 | frame, lineno = frame_lineno |
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368 | 368 | filename = frame.f_code.co_filename |
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369 | 369 | self.shell.hooks.synchronize_with_editor(filename, lineno, 0) |
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370 | 370 | # vds: << |
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371 | 371 | |
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372 | 372 | def format_stack_entry(self, frame_lineno, lprefix=': ', context=None): |
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373 | 373 | if context is None: |
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374 | 374 | context = self.context |
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375 | 375 | try: |
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376 | 376 | context=int(context) |
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377 | 377 | if context <= 0: |
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378 | 378 | print("Context must be a positive integer") |
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379 | 379 | except (TypeError, ValueError): |
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380 | 380 | print("Context must be a positive integer") |
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381 | 381 | try: |
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382 | 382 | import reprlib # Py 3 |
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383 | 383 | except ImportError: |
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384 | 384 | import repr as reprlib # Py 2 |
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385 | 385 | |
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386 | 386 | ret = [] |
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387 | 387 | |
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388 | 388 | Colors = self.color_scheme_table.active_colors |
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389 | 389 | ColorsNormal = Colors.Normal |
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390 | 390 | tpl_link = u'%s%%s%s' % (Colors.filenameEm, ColorsNormal) |
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391 | 391 | tpl_call = u'%s%%s%s%%s%s' % (Colors.vName, Colors.valEm, ColorsNormal) |
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392 | 392 | tpl_line = u'%%s%s%%s %s%%s' % (Colors.lineno, ColorsNormal) |
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393 | 393 | tpl_line_em = u'%%s%s%%s %s%%s%s' % (Colors.linenoEm, Colors.line, |
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394 | 394 | ColorsNormal) |
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395 | 395 | |
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396 | 396 | frame, lineno = frame_lineno |
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397 | 397 | |
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398 | 398 | return_value = '' |
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399 | 399 | if '__return__' in frame.f_locals: |
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400 | 400 | rv = frame.f_locals['__return__'] |
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401 | 401 | #return_value += '->' |
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402 | 402 | return_value += reprlib.repr(rv) + '\n' |
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403 | 403 | ret.append(return_value) |
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404 | 404 | |
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405 | 405 | #s = filename + '(' + `lineno` + ')' |
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406 | 406 | filename = self.canonic(frame.f_code.co_filename) |
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407 | 407 | link = tpl_link % py3compat.cast_unicode(filename) |
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408 | 408 | |
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409 | 409 | if frame.f_code.co_name: |
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410 | 410 | func = frame.f_code.co_name |
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411 | 411 | else: |
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412 | 412 | func = "<lambda>" |
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413 | 413 | |
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414 | 414 | call = '' |
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415 | 415 | if func != '?': |
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416 | 416 | if '__args__' in frame.f_locals: |
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417 | 417 | args = reprlib.repr(frame.f_locals['__args__']) |
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418 | 418 | else: |
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419 | 419 | args = '()' |
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420 | 420 | call = tpl_call % (func, args) |
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421 | 421 | |
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422 | 422 | # The level info should be generated in the same format pdb uses, to |
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423 | 423 | # avoid breaking the pdbtrack functionality of python-mode in *emacs. |
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424 | 424 | if frame is self.curframe: |
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425 | 425 | ret.append('> ') |
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426 | 426 | else: |
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427 | 427 | ret.append(' ') |
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428 | 428 | ret.append(u'%s(%s)%s\n' % (link,lineno,call)) |
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429 | 429 | |
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430 | 430 | start = lineno - 1 - context//2 |
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431 | 431 | lines = ulinecache.getlines(filename) |
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432 | 432 | start = min(start, len(lines) - context) |
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433 | 433 | start = max(start, 0) |
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434 | 434 | lines = lines[start : start + context] |
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435 | 435 | |
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436 | 436 | for i,line in enumerate(lines): |
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437 | 437 | show_arrow = (start + 1 + i == lineno) |
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438 | 438 | linetpl = (frame is self.curframe or show_arrow) \ |
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439 | 439 | and tpl_line_em \ |
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440 | 440 | or tpl_line |
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441 | 441 | ret.append(self.__format_line(linetpl, filename, |
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442 | 442 | start + 1 + i, line, |
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443 | 443 | arrow = show_arrow) ) |
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444 | 444 | return ''.join(ret) |
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445 | 445 | |
|
446 | 446 | def __format_line(self, tpl_line, filename, lineno, line, arrow = False): |
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447 | 447 | bp_mark = "" |
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448 | 448 | bp_mark_color = "" |
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449 | 449 | |
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450 | 450 | scheme = self.color_scheme_table.active_scheme_name |
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451 | 451 | new_line, err = self.parser.format2(line, 'str', scheme) |
|
452 | 452 | if not err: line = new_line |
|
453 | 453 | |
|
454 | 454 | bp = None |
|
455 | 455 | if lineno in self.get_file_breaks(filename): |
|
456 | 456 | bps = self.get_breaks(filename, lineno) |
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457 | 457 | bp = bps[-1] |
|
458 | 458 | |
|
459 | 459 | if bp: |
|
460 | 460 | Colors = self.color_scheme_table.active_colors |
|
461 | 461 | bp_mark = str(bp.number) |
|
462 | 462 | bp_mark_color = Colors.breakpoint_enabled |
|
463 | 463 | if not bp.enabled: |
|
464 | 464 | bp_mark_color = Colors.breakpoint_disabled |
|
465 | 465 | |
|
466 | 466 | numbers_width = 7 |
|
467 | 467 | if arrow: |
|
468 | 468 | # This is the line with the error |
|
469 | 469 | pad = numbers_width - len(str(lineno)) - len(bp_mark) |
|
470 | 470 | num = '%s%s' % (make_arrow(pad), str(lineno)) |
|
471 | 471 | else: |
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472 | 472 | num = '%*s' % (numbers_width - len(bp_mark), str(lineno)) |
|
473 | 473 | |
|
474 | 474 | return tpl_line % (bp_mark_color + bp_mark, num, line) |
|
475 | 475 | |
|
476 | 476 | |
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477 | 477 | def print_list_lines(self, filename, first, last): |
|
478 | 478 | """The printing (as opposed to the parsing part of a 'list' |
|
479 | 479 | command.""" |
|
480 | 480 | try: |
|
481 | 481 | Colors = self.color_scheme_table.active_colors |
|
482 | 482 | ColorsNormal = Colors.Normal |
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483 | 483 | tpl_line = '%%s%s%%s %s%%s' % (Colors.lineno, ColorsNormal) |
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484 | 484 | tpl_line_em = '%%s%s%%s %s%%s%s' % (Colors.linenoEm, Colors.line, ColorsNormal) |
|
485 | 485 | src = [] |
|
486 | 486 | if filename == "<string>" and hasattr(self, "_exec_filename"): |
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487 | 487 | filename = self._exec_filename |
|
488 | 488 | |
|
489 | 489 | for lineno in range(first, last+1): |
|
490 | 490 | line = ulinecache.getline(filename, lineno) |
|
491 | 491 | if not line: |
|
492 | 492 | break |
|
493 | 493 | |
|
494 | 494 | if lineno == self.curframe.f_lineno: |
|
495 | 495 | line = self.__format_line(tpl_line_em, filename, lineno, line, arrow = True) |
|
496 | 496 | else: |
|
497 | 497 | line = self.__format_line(tpl_line, filename, lineno, line, arrow = False) |
|
498 | 498 | |
|
499 | 499 | src.append(line) |
|
500 | 500 | self.lineno = lineno |
|
501 | 501 | |
|
502 | 502 | print(''.join(src)) |
|
503 | 503 | |
|
504 | 504 | except KeyboardInterrupt: |
|
505 | 505 | pass |
|
506 | 506 | |
|
507 | 507 | def do_list(self, arg): |
|
508 | 508 | self.lastcmd = 'list' |
|
509 | 509 | last = None |
|
510 | 510 | if arg: |
|
511 | 511 | try: |
|
512 | 512 | x = eval(arg, {}, {}) |
|
513 | 513 | if type(x) == type(()): |
|
514 | 514 | first, last = x |
|
515 | 515 | first = int(first) |
|
516 | 516 | last = int(last) |
|
517 | 517 | if last < first: |
|
518 | 518 | # Assume it's a count |
|
519 | 519 | last = first + last |
|
520 | 520 | else: |
|
521 | 521 | first = max(1, int(x) - 5) |
|
522 | 522 | except: |
|
523 | 523 | print('*** Error in argument:', repr(arg)) |
|
524 | 524 | return |
|
525 | 525 | elif self.lineno is None: |
|
526 | 526 | first = max(1, self.curframe.f_lineno - 5) |
|
527 | 527 | else: |
|
528 | 528 | first = self.lineno + 1 |
|
529 | 529 | if last is None: |
|
530 | 530 | last = first + 10 |
|
531 | 531 | self.print_list_lines(self.curframe.f_code.co_filename, first, last) |
|
532 | 532 | |
|
533 | 533 | # vds: >> |
|
534 | 534 | lineno = first |
|
535 | 535 | filename = self.curframe.f_code.co_filename |
|
536 | 536 | self.shell.hooks.synchronize_with_editor(filename, lineno, 0) |
|
537 | 537 | # vds: << |
|
538 | 538 | |
|
539 | 539 | do_l = do_list |
|
540 | 540 | |
|
541 | 541 | def getsourcelines(self, obj): |
|
542 | 542 | lines, lineno = inspect.findsource(obj) |
|
543 | 543 | if inspect.isframe(obj) and obj.f_globals is obj.f_locals: |
|
544 | 544 | # must be a module frame: do not try to cut a block out of it |
|
545 | 545 | return lines, 1 |
|
546 | 546 | elif inspect.ismodule(obj): |
|
547 | 547 | return lines, 1 |
|
548 | 548 | return inspect.getblock(lines[lineno:]), lineno+1 |
|
549 | 549 | |
|
550 | 550 | def do_longlist(self, arg): |
|
551 | 551 | self.lastcmd = 'longlist' |
|
552 | 552 | try: |
|
553 | 553 | lines, lineno = self.getsourcelines(self.curframe) |
|
554 | 554 | except OSError as err: |
|
555 | 555 | self.error(err) |
|
556 | 556 | return |
|
557 | 557 | last = lineno + len(lines) |
|
558 | 558 | self.print_list_lines(self.curframe.f_code.co_filename, lineno, last) |
|
559 | 559 | do_ll = do_longlist |
|
560 | 560 | |
|
561 | 561 | def do_pdef(self, arg): |
|
562 | 562 | """Print the call signature for any callable object. |
|
563 | 563 | |
|
564 | 564 | The debugger interface to %pdef""" |
|
565 | 565 | namespaces = [('Locals', self.curframe.f_locals), |
|
566 | 566 | ('Globals', self.curframe.f_globals)] |
|
567 | 567 | self.shell.find_line_magic('pdef')(arg, namespaces=namespaces) |
|
568 | 568 | |
|
569 | 569 | def do_pdoc(self, arg): |
|
570 | 570 | """Print the docstring for an object. |
|
571 | 571 | |
|
572 | 572 | The debugger interface to %pdoc.""" |
|
573 | 573 | namespaces = [('Locals', self.curframe.f_locals), |
|
574 | 574 | ('Globals', self.curframe.f_globals)] |
|
575 | 575 | self.shell.find_line_magic('pdoc')(arg, namespaces=namespaces) |
|
576 | 576 | |
|
577 | 577 | def do_pfile(self, arg): |
|
578 | 578 | """Print (or run through pager) the file where an object is defined. |
|
579 | 579 | |
|
580 | 580 | The debugger interface to %pfile. |
|
581 | 581 | """ |
|
582 | 582 | namespaces = [('Locals', self.curframe.f_locals), |
|
583 | 583 | ('Globals', self.curframe.f_globals)] |
|
584 | 584 | self.shell.find_line_magic('pfile')(arg, namespaces=namespaces) |
|
585 | 585 | |
|
586 | 586 | def do_pinfo(self, arg): |
|
587 | 587 | """Provide detailed information about an object. |
|
588 | 588 | |
|
589 | 589 | The debugger interface to %pinfo, i.e., obj?.""" |
|
590 | 590 | namespaces = [('Locals', self.curframe.f_locals), |
|
591 | 591 | ('Globals', self.curframe.f_globals)] |
|
592 | 592 | self.shell.find_line_magic('pinfo')(arg, namespaces=namespaces) |
|
593 | 593 | |
|
594 | 594 | def do_pinfo2(self, arg): |
|
595 | 595 | """Provide extra detailed information about an object. |
|
596 | 596 | |
|
597 | 597 | The debugger interface to %pinfo2, i.e., obj??.""" |
|
598 | 598 | namespaces = [('Locals', self.curframe.f_locals), |
|
599 | 599 | ('Globals', self.curframe.f_globals)] |
|
600 | 600 | self.shell.find_line_magic('pinfo2')(arg, namespaces=namespaces) |
|
601 | 601 | |
|
602 | 602 | def do_psource(self, arg): |
|
603 | 603 | """Print (or run through pager) the source code for an object.""" |
|
604 | 604 | namespaces = [('Locals', self.curframe.f_locals), |
|
605 | 605 | ('Globals', self.curframe.f_globals)] |
|
606 | 606 | self.shell.find_line_magic('psource')(arg, namespaces=namespaces) |
|
607 | 607 | |
|
608 | 608 | if sys.version_info > (3, ): |
|
609 | 609 | def do_where(self, arg): |
|
610 | 610 | """w(here) |
|
611 | 611 | Print a stack trace, with the most recent frame at the bottom. |
|
612 | 612 | An arrow indicates the "current frame", which determines the |
|
613 | 613 | context of most commands. 'bt' is an alias for this command. |
|
614 | 614 | |
|
615 | 615 | Take a number as argument as an (optional) number of context line to |
|
616 | 616 | print""" |
|
617 | 617 | if arg: |
|
618 | 618 | context = int(arg) |
|
619 | 619 | self.print_stack_trace(context) |
|
620 | 620 | else: |
|
621 | 621 | self.print_stack_trace() |
|
622 | 622 | |
|
623 | 623 | do_w = do_where |
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