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@@ -1,1279 +1,1292 b'' | |||
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1 | 1 | # -*- coding: utf-8 -*- |
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2 | 2 | """ |
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3 | 3 | Verbose and colourful traceback formatting. |
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4 | 4 | |
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5 | 5 | **ColorTB** |
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6 | 6 | |
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7 | 7 | I've always found it a bit hard to visually parse tracebacks in Python. The |
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8 | 8 | ColorTB class is a solution to that problem. It colors the different parts of a |
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9 | 9 | traceback in a manner similar to what you would expect from a syntax-highlighting |
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10 | 10 | text editor. |
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11 | 11 | |
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12 | 12 | Installation instructions for ColorTB:: |
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13 | 13 | |
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14 | 14 | import sys,ultratb |
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15 | 15 | sys.excepthook = ultratb.ColorTB() |
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16 | 16 | |
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17 | 17 | **VerboseTB** |
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18 | 18 | |
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19 | 19 | I've also included a port of Ka-Ping Yee's "cgitb.py" that produces all kinds |
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20 | 20 | of useful info when a traceback occurs. Ping originally had it spit out HTML |
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21 | 21 | and intended it for CGI programmers, but why should they have all the fun? I |
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22 | 22 | altered it to spit out colored text to the terminal. It's a bit overwhelming, |
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23 | 23 | but kind of neat, and maybe useful for long-running programs that you believe |
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24 | 24 | are bug-free. If a crash *does* occur in that type of program you want details. |
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25 | 25 | Give it a shot--you'll love it or you'll hate it. |
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26 | 26 | |
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27 | 27 | .. note:: |
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28 | 28 | |
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29 | 29 | The Verbose mode prints the variables currently visible where the exception |
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30 | 30 | happened (shortening their strings if too long). This can potentially be |
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31 | 31 | very slow, if you happen to have a huge data structure whose string |
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32 | 32 | representation is complex to compute. Your computer may appear to freeze for |
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33 | 33 | a while with cpu usage at 100%. If this occurs, you can cancel the traceback |
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34 | 34 | with Ctrl-C (maybe hitting it more than once). |
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35 | 35 | |
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36 | 36 | If you encounter this kind of situation often, you may want to use the |
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37 | 37 | Verbose_novars mode instead of the regular Verbose, which avoids formatting |
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38 | 38 | variables (but otherwise includes the information and context given by |
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39 | 39 | Verbose). |
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40 | 40 | |
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41 | 41 | |
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42 |
Installation instructions for |
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42 | Installation instructions for VerboseTB:: | |
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43 | 43 | |
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44 | 44 | import sys,ultratb |
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45 | 45 | sys.excepthook = ultratb.VerboseTB() |
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46 | 46 | |
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47 | 47 | Note: Much of the code in this module was lifted verbatim from the standard |
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48 | 48 | library module 'traceback.py' and Ka-Ping Yee's 'cgitb.py'. |
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49 | 49 | |
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50 | 50 | Color schemes |
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51 | 51 | ------------- |
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52 | 52 | |
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53 | 53 | The colors are defined in the class TBTools through the use of the |
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54 | 54 | ColorSchemeTable class. Currently the following exist: |
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55 | 55 | |
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56 | 56 | - NoColor: allows all of this module to be used in any terminal (the color |
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57 | 57 | escapes are just dummy blank strings). |
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58 | 58 | |
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59 | 59 | - Linux: is meant to look good in a terminal like the Linux console (black |
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60 | 60 | or very dark background). |
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61 | 61 | |
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62 | 62 | - LightBG: similar to Linux but swaps dark/light colors to be more readable |
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63 | 63 | in light background terminals. |
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64 | 64 | |
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65 | 65 | You can implement other color schemes easily, the syntax is fairly |
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66 | 66 | self-explanatory. Please send back new schemes you develop to the author for |
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67 | 67 | possible inclusion in future releases. |
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68 | 68 | |
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69 | 69 | Inheritance diagram: |
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70 | 70 | |
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71 | 71 | .. inheritance-diagram:: IPython.core.ultratb |
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72 | 72 | :parts: 3 |
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73 | 73 | """ |
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74 | 74 | |
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75 | #***************************************************************************** | |
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76 |
# |
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75 | # ***************************************************************************** | |
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76 | # Copyright (C) 2001 Nathaniel Gray <n8gray@caltech.edu> | |
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77 | 77 | # Copyright (C) 2001-2004 Fernando Perez <fperez@colorado.edu> |
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78 | 78 | # |
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79 | 79 | # Distributed under the terms of the BSD License. The full license is in |
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80 | 80 | # the file COPYING, distributed as part of this software. |
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81 | 81 | #***************************************************************************** |
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82 | 82 | |
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83 | 83 | from __future__ import unicode_literals |
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84 | 84 | from __future__ import print_function |
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85 | 85 | |
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86 | 86 | import inspect |
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87 | 87 | import keyword |
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88 | 88 | import linecache |
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89 | 89 | import os |
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90 | 90 | import pydoc |
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91 | 91 | import re |
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92 | 92 | import sys |
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93 | 93 | import time |
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94 | 94 | import tokenize |
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95 | 95 | import traceback |
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96 | 96 | import types |
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97 | 97 | |
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98 | try: # Python 2 | |
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98 | try: # Python 2 | |
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99 | 99 | generate_tokens = tokenize.generate_tokens |
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100 |
except AttributeError: |
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100 | except AttributeError: # Python 3 | |
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101 | 101 | generate_tokens = tokenize.tokenize |
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102 | 102 | |
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103 | 103 | # For purposes of monkeypatching inspect to fix a bug in it. |
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104 | from inspect import getsourcefile, getfile, getmodule,\ | |
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105 |
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104 | from inspect import getsourcefile, getfile, getmodule, \ | |
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105 | ismodule, isclass, ismethod, isfunction, istraceback, isframe, iscode | |
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106 | 106 | |
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107 | 107 | # IPython's own modules |
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108 | 108 | # Modified pdb which doesn't damage IPython's readline handling |
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109 | 109 | from IPython import get_ipython |
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110 | 110 | from IPython.core import debugger |
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111 | 111 | from IPython.core.display_trap import DisplayTrap |
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112 | 112 | from IPython.core.excolors import exception_colors |
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113 | 113 | from IPython.utils import PyColorize |
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114 | 114 | from IPython.utils import io |
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115 | 115 | from IPython.utils import openpy |
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116 | 116 | from IPython.utils import path as util_path |
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117 | 117 | from IPython.utils import py3compat |
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118 | 118 | from IPython.utils import ulinecache |
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119 | 119 | from IPython.utils.data import uniq_stable |
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120 | 120 | from IPython.utils.warn import info, error |
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121 | 121 | |
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122 | 122 | # Globals |
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123 | 123 | # amount of space to put line numbers before verbose tracebacks |
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124 | 124 | INDENT_SIZE = 8 |
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125 | 125 | |
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126 | 126 | # Default color scheme. This is used, for example, by the traceback |
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127 | 127 | # formatter. When running in an actual IPython instance, the user's rc.colors |
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128 | # value is used, but havinga module global makes this functionality available | |
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128 | # value is used, but having a module global makes this functionality available | |
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129 | 129 | # to users of ultratb who are NOT running inside ipython. |
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130 | 130 | DEFAULT_SCHEME = 'NoColor' |
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131 | 131 | |
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132 | 132 | #--------------------------------------------------------------------------- |
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133 | 133 | # Code begins |
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134 | 134 | |
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135 | 135 | # Utility functions |
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136 | 136 | def inspect_error(): |
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137 | 137 | """Print a message about internal inspect errors. |
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138 | 138 | |
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139 | 139 | These are unfortunately quite common.""" |
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140 | 140 | |
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141 | 141 | error('Internal Python error in the inspect module.\n' |
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142 | 142 | 'Below is the traceback from this internal error.\n') |
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143 | 143 | |
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144 | ||
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144 | 145 | # This function is a monkeypatch we apply to the Python inspect module. We have |
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145 | 146 | # now found when it's needed (see discussion on issue gh-1456), and we have a |
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146 | 147 | # test case (IPython.core.tests.test_ultratb.ChangedPyFileTest) that fails if |
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147 | 148 | # the monkeypatch is not applied. TK, Aug 2012. |
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148 | 149 | def findsource(object): |
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149 | 150 | """Return the entire source file and starting line number for an object. |
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150 | 151 | |
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151 | 152 | The argument may be a module, class, method, function, traceback, frame, |
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152 | 153 | or code object. The source code is returned as a list of all the lines |
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153 | 154 | in the file and the line number indexes a line in that list. An IOError |
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154 | 155 | is raised if the source code cannot be retrieved. |
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155 | 156 | |
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156 | 157 | FIXED version with which we monkeypatch the stdlib to work around a bug.""" |
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157 | 158 | |
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158 | 159 | file = getsourcefile(object) or getfile(object) |
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159 | 160 | # If the object is a frame, then trying to get the globals dict from its |
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160 | 161 | # module won't work. Instead, the frame object itself has the globals |
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161 | 162 | # dictionary. |
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162 | 163 | globals_dict = None |
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163 | 164 | if inspect.isframe(object): |
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164 | 165 | # XXX: can this ever be false? |
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165 | 166 | globals_dict = object.f_globals |
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166 | 167 | else: |
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167 | 168 | module = getmodule(object, file) |
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168 | 169 | if module: |
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169 | 170 | globals_dict = module.__dict__ |
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170 | 171 | lines = linecache.getlines(file, globals_dict) |
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171 | 172 | if not lines: |
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172 | 173 | raise IOError('could not get source code') |
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173 | 174 | |
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174 | 175 | if ismodule(object): |
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175 | 176 | return lines, 0 |
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176 | 177 | |
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177 | 178 | if isclass(object): |
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178 | 179 | name = object.__name__ |
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179 | 180 | pat = re.compile(r'^(\s*)class\s*' + name + r'\b') |
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180 | 181 | # make some effort to find the best matching class definition: |
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181 | 182 | # use the one with the least indentation, which is the one |
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182 | 183 | # that's most probably not inside a function definition. |
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183 | 184 | candidates = [] |
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184 | 185 | for i in range(len(lines)): |
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185 | 186 | match = pat.match(lines[i]) |
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186 | 187 | if match: |
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187 | 188 | # if it's at toplevel, it's already the best one |
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188 | 189 | if lines[i][0] == 'c': |
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189 | 190 | return lines, i |
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190 | 191 | # else add whitespace to candidate list |
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191 | 192 | candidates.append((match.group(1), i)) |
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192 | 193 | if candidates: |
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193 | 194 | # this will sort by whitespace, and by line number, |
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194 | 195 | # less whitespace first |
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195 | 196 | candidates.sort() |
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196 | 197 | return lines, candidates[0][1] |
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197 | 198 | else: |
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198 | 199 | raise IOError('could not find class definition') |
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199 | 200 | |
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200 | 201 | if ismethod(object): |
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201 | 202 | object = object.__func__ |
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202 | 203 | if isfunction(object): |
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203 | 204 | object = object.__code__ |
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204 | 205 | if istraceback(object): |
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205 | 206 | object = object.tb_frame |
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206 | 207 | if isframe(object): |
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207 | 208 | object = object.f_code |
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208 | 209 | if iscode(object): |
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209 | 210 | if not hasattr(object, 'co_firstlineno'): |
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210 | 211 | raise IOError('could not find function definition') |
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211 | 212 | pat = re.compile(r'^(\s*def\s)|(.*(?<!\w)lambda(:|\s))|^(\s*@)') |
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212 | 213 | pmatch = pat.match |
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213 | 214 | # fperez - fix: sometimes, co_firstlineno can give a number larger than |
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214 | 215 | # the length of lines, which causes an error. Safeguard against that. |
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215 | lnum = min(object.co_firstlineno,len(lines))-1 | |
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216 | lnum = min(object.co_firstlineno, len(lines)) - 1 | |
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216 | 217 | while lnum > 0: |
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217 | 218 | if pmatch(lines[lnum]): break |
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218 | 219 | lnum -= 1 |
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219 | 220 | |
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220 | 221 | return lines, lnum |
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221 | 222 | raise IOError('could not find code object') |
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222 | 223 | |
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224 | ||
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223 | 225 | # Monkeypatch inspect to apply our bugfix. |
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224 | 226 | def with_patch_inspect(f): |
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225 | 227 | """decorator for monkeypatching inspect.findsource""" |
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228 | ||
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226 | 229 | def wrapped(*args, **kwargs): |
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227 | 230 | save_findsource = inspect.findsource |
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228 | 231 | inspect.findsource = findsource |
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229 | 232 | try: |
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230 | 233 | return f(*args, **kwargs) |
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231 | 234 | finally: |
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232 | 235 | inspect.findsource = save_findsource |
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236 | ||
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233 | 237 | return wrapped |
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234 | 238 | |
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239 | ||
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235 | 240 | def fix_frame_records_filenames(records): |
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236 | 241 | """Try to fix the filenames in each record from inspect.getinnerframes(). |
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237 | 242 | |
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238 | 243 | Particularly, modules loaded from within zip files have useless filenames |
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239 | 244 | attached to their code object, and inspect.getinnerframes() just uses it. |
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240 | 245 | """ |
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241 | 246 | fixed_records = [] |
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242 | 247 | for frame, filename, line_no, func_name, lines, index in records: |
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243 | 248 | # Look inside the frame's globals dictionary for __file__, which should |
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244 | 249 | # be better. |
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245 | 250 | better_fn = frame.f_globals.get('__file__', None) |
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246 | 251 | if isinstance(better_fn, str): |
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247 | 252 | # Check the type just in case someone did something weird with |
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248 | 253 | # __file__. It might also be None if the error occurred during |
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249 | 254 | # import. |
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250 | 255 | filename = better_fn |
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251 | 256 | fixed_records.append((frame, filename, line_no, func_name, lines, index)) |
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252 | 257 | return fixed_records |
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253 | 258 | |
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254 | 259 | |
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255 | 260 | @with_patch_inspect |
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256 | def _fixed_getinnerframes(etb, context=1,tb_offset=0): | |
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257 |
LNUM_POS, LINES_POS, INDEX_POS = |
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261 | def _fixed_getinnerframes(etb, context=1, tb_offset=0): | |
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262 | LNUM_POS, LINES_POS, INDEX_POS = 2, 4, 5 | |
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258 | 263 | |
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259 |
records |
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264 | records = fix_frame_records_filenames(inspect.getinnerframes(etb, context)) | |
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260 | 265 | |
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261 | 266 | # If the error is at the console, don't build any context, since it would |
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262 | 267 | # otherwise produce 5 blank lines printed out (there is no file at the |
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263 | 268 | # console) |
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264 | 269 | rec_check = records[tb_offset:] |
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265 | 270 | try: |
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266 | 271 | rname = rec_check[0][1] |
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267 | 272 | if rname == '<ipython console>' or rname.endswith('<string>'): |
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268 | 273 | return rec_check |
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269 | 274 | except IndexError: |
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270 | 275 | pass |
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271 | 276 | |
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272 | 277 | aux = traceback.extract_tb(etb) |
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273 | 278 | assert len(records) == len(aux) |
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274 | 279 | for i, (file, lnum, _, _) in zip(range(len(records)), aux): |
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275 | maybeStart = lnum-1 - context//2 | |
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276 |
start = |
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277 |
end |
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280 | maybeStart = lnum - 1 - context // 2 | |
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281 | start = max(maybeStart, 0) | |
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282 | end = start + context | |
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278 | 283 | lines = ulinecache.getlines(file)[start:end] |
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279 | 284 | buf = list(records[i]) |
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280 | 285 | buf[LNUM_POS] = lnum |
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281 | 286 | buf[INDEX_POS] = lnum - 1 - start |
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282 | 287 | buf[LINES_POS] = lines |
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283 | 288 | records[i] = tuple(buf) |
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284 | 289 | return records[tb_offset:] |
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285 | 290 | |
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286 | 291 | # Helper function -- largely belongs to VerboseTB, but we need the same |
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287 | 292 | # functionality to produce a pseudo verbose TB for SyntaxErrors, so that they |
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288 | 293 | # can be recognized properly by ipython.el's py-traceback-line-re |
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289 | 294 | # (SyntaxErrors have to be treated specially because they have no traceback) |
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290 | 295 | |
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291 | 296 | _parser = PyColorize.Parser() |
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292 | 297 | |
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293 | def _format_traceback_lines(lnum, index, lines, Colors, lvals=None,scheme=None): | |
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298 | ||
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299 | def _format_traceback_lines(lnum, index, lines, Colors, lvals=None, scheme=None): | |
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294 | 300 | numbers_width = INDENT_SIZE - 1 |
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295 | 301 | res = [] |
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296 | 302 | i = lnum - index |
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297 | 303 | |
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298 | 304 | # This lets us get fully syntax-highlighted tracebacks. |
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299 | 305 | if scheme is None: |
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300 | 306 | ipinst = get_ipython() |
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301 | 307 | if ipinst is not None: |
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302 | 308 | scheme = ipinst.colors |
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303 | 309 | else: |
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304 | 310 | scheme = DEFAULT_SCHEME |
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305 | 311 | |
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306 | 312 | _line_format = _parser.format2 |
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307 | 313 | |
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308 | 314 | for line in lines: |
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309 | 315 | line = py3compat.cast_unicode(line) |
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310 | 316 | |
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311 | 317 | new_line, err = _line_format(line, 'str', scheme) |
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312 | 318 | if not err: line = new_line |
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313 | 319 | |
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314 | 320 | if i == lnum: |
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315 | 321 | # This is the line with the error |
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316 | 322 | pad = numbers_width - len(str(i)) |
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317 | 323 | if pad >= 3: |
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318 | marker = '-'*(pad-3) + '-> ' | |
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324 | marker = '-' * (pad - 3) + '-> ' | |
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319 | 325 | elif pad == 2: |
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320 | 326 | marker = '> ' |
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321 | 327 | elif pad == 1: |
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322 | 328 | marker = '>' |
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323 | 329 | else: |
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324 | 330 | marker = '' |
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325 | 331 | num = marker + str(i) |
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326 | line = '%s%s%s %s%s' %(Colors.linenoEm, num, | |
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327 | Colors.line, line, Colors.Normal) | |
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332 | line = '%s%s%s %s%s' % (Colors.linenoEm, num, | |
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333 | Colors.line, line, Colors.Normal) | |
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328 | 334 | else: |
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329 | num = '%*s' % (numbers_width,i) | |
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330 | line = '%s%s%s %s' %(Colors.lineno, num, | |
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331 | Colors.Normal, line) | |
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335 | num = '%*s' % (numbers_width, i) | |
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336 | line = '%s%s%s %s' % (Colors.lineno, num, | |
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337 | Colors.Normal, line) | |
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332 | 338 | |
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333 | 339 | res.append(line) |
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334 | 340 | if lvals and i == lnum: |
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335 | 341 | res.append(lvals + '\n') |
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336 | 342 | i = i + 1 |
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337 | 343 | return res |
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338 | 344 | |
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339 | 345 | |
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340 | 346 | #--------------------------------------------------------------------------- |
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341 | 347 | # Module classes |
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342 | 348 | class TBTools(object): |
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343 | 349 | """Basic tools used by all traceback printer classes.""" |
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344 | 350 | |
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345 | 351 | # Number of frames to skip when reporting tracebacks |
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346 | 352 | tb_offset = 0 |
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347 | 353 | |
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348 | 354 | def __init__(self, color_scheme='NoColor', call_pdb=False, ostream=None): |
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349 | 355 | # Whether to call the interactive pdb debugger after printing |
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350 | 356 | # tracebacks or not |
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351 | 357 | self.call_pdb = call_pdb |
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352 | 358 | |
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353 | 359 | # Output stream to write to. Note that we store the original value in |
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354 | 360 | # a private attribute and then make the public ostream a property, so |
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355 | 361 | # that we can delay accessing io.stdout until runtime. The way |
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356 | 362 | # things are written now, the io.stdout object is dynamically managed |
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357 | 363 | # so a reference to it should NEVER be stored statically. This |
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358 | 364 | # property approach confines this detail to a single location, and all |
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359 | 365 | # subclasses can simply access self.ostream for writing. |
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360 | 366 | self._ostream = ostream |
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361 | 367 | |
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362 | 368 | # Create color table |
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363 | 369 | self.color_scheme_table = exception_colors() |
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364 | 370 | |
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365 | 371 | self.set_colors(color_scheme) |
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366 | 372 | self.old_scheme = color_scheme # save initial value for toggles |
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367 | 373 | |
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368 | 374 | if call_pdb: |
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369 | 375 | self.pdb = debugger.Pdb(self.color_scheme_table.active_scheme_name) |
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370 | 376 | else: |
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371 | 377 | self.pdb = None |
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372 | 378 | |
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373 | 379 | def _get_ostream(self): |
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374 | 380 | """Output stream that exceptions are written to. |
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375 | 381 | |
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376 | 382 | Valid values are: |
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377 | 383 | |
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378 | 384 | - None: the default, which means that IPython will dynamically resolve |
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379 | 385 | to io.stdout. This ensures compatibility with most tools, including |
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380 | 386 | Windows (where plain stdout doesn't recognize ANSI escapes). |
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381 | 387 | |
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382 | 388 | - Any object with 'write' and 'flush' attributes. |
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383 | 389 | """ |
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384 | 390 | return io.stdout if self._ostream is None else self._ostream |
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385 | 391 | |
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386 | 392 | def _set_ostream(self, val): |
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387 | 393 | assert val is None or (hasattr(val, 'write') and hasattr(val, 'flush')) |
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388 | 394 | self._ostream = val |
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389 | 395 | |
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390 | 396 | ostream = property(_get_ostream, _set_ostream) |
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391 | 397 | |
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392 | def set_colors(self,*args,**kw): | |
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398 | def set_colors(self, *args, **kw): | |
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393 | 399 | """Shorthand access to the color table scheme selector method.""" |
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394 | 400 | |
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395 | 401 | # Set own color table |
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396 | self.color_scheme_table.set_active_scheme(*args,**kw) | |
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402 | self.color_scheme_table.set_active_scheme(*args, **kw) | |
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397 | 403 | # for convenience, set Colors to the active scheme |
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398 | 404 | self.Colors = self.color_scheme_table.active_colors |
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399 | 405 | # Also set colors of debugger |
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400 | if hasattr(self,'pdb') and self.pdb is not None: | |
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401 | self.pdb.set_colors(*args,**kw) | |
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406 | if hasattr(self, 'pdb') and self.pdb is not None: | |
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407 | self.pdb.set_colors(*args, **kw) | |
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402 | 408 | |
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403 | 409 | def color_toggle(self): |
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404 | 410 | """Toggle between the currently active color scheme and NoColor.""" |
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405 | 411 | |
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406 | 412 | if self.color_scheme_table.active_scheme_name == 'NoColor': |
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407 | 413 | self.color_scheme_table.set_active_scheme(self.old_scheme) |
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408 | 414 | self.Colors = self.color_scheme_table.active_colors |
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409 | 415 | else: |
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410 | 416 | self.old_scheme = self.color_scheme_table.active_scheme_name |
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411 | 417 | self.color_scheme_table.set_active_scheme('NoColor') |
|
412 | 418 | self.Colors = self.color_scheme_table.active_colors |
|
413 | 419 | |
|
414 | 420 | def stb2text(self, stb): |
|
415 | 421 | """Convert a structured traceback (a list) to a string.""" |
|
416 | 422 | return '\n'.join(stb) |
|
417 | 423 | |
|
418 | 424 | def text(self, etype, value, tb, tb_offset=None, context=5): |
|
419 | 425 | """Return formatted traceback. |
|
420 | 426 | |
|
421 | 427 | Subclasses may override this if they add extra arguments. |
|
422 | 428 | """ |
|
423 | 429 | tb_list = self.structured_traceback(etype, value, tb, |
|
424 | 430 | tb_offset, context) |
|
425 | 431 | return self.stb2text(tb_list) |
|
426 | 432 | |
|
427 | 433 | def structured_traceback(self, etype, evalue, tb, tb_offset=None, |
|
428 | 434 | context=5, mode=None): |
|
429 | 435 | """Return a list of traceback frames. |
|
430 | 436 | |
|
431 | 437 | Must be implemented by each class. |
|
432 | 438 | """ |
|
433 | 439 | raise NotImplementedError() |
|
434 | 440 | |
|
435 | 441 | |
|
436 | 442 | #--------------------------------------------------------------------------- |
|
437 | 443 | class ListTB(TBTools): |
|
438 | 444 | """Print traceback information from a traceback list, with optional color. |
|
439 | 445 | |
|
440 | 446 | Calling requires 3 arguments: (etype, evalue, elist) |
|
441 | 447 | as would be obtained by:: |
|
442 | 448 | |
|
443 | 449 | etype, evalue, tb = sys.exc_info() |
|
444 | 450 | if tb: |
|
445 | 451 | elist = traceback.extract_tb(tb) |
|
446 | 452 | else: |
|
447 | 453 | elist = None |
|
448 | 454 | |
|
449 | 455 | It can thus be used by programs which need to process the traceback before |
|
450 | 456 | printing (such as console replacements based on the code module from the |
|
451 | 457 | standard library). |
|
452 | 458 | |
|
453 | 459 | Because they are meant to be called without a full traceback (only a |
|
454 | 460 | list), instances of this class can't call the interactive pdb debugger.""" |
|
455 | 461 | |
|
456 |
def __init__(self,color_scheme |
|
|
462 | def __init__(self, color_scheme='NoColor', call_pdb=False, ostream=None): | |
|
457 | 463 | TBTools.__init__(self, color_scheme=color_scheme, call_pdb=call_pdb, |
|
458 | 464 | ostream=ostream) |
|
459 | 465 | |
|
460 | 466 | def __call__(self, etype, value, elist): |
|
461 | 467 | self.ostream.flush() |
|
462 | 468 | self.ostream.write(self.text(etype, value, elist)) |
|
463 | 469 | self.ostream.write('\n') |
|
464 | 470 | |
|
465 | 471 | def structured_traceback(self, etype, value, elist, tb_offset=None, |
|
466 | 472 | context=5): |
|
467 | 473 | """Return a color formatted string with the traceback info. |
|
468 | 474 | |
|
469 | 475 | Parameters |
|
470 | 476 | ---------- |
|
471 | 477 | etype : exception type |
|
472 | 478 | Type of the exception raised. |
|
473 | 479 | |
|
474 | 480 | value : object |
|
475 | 481 | Data stored in the exception |
|
476 | 482 | |
|
477 | 483 | elist : list |
|
478 | 484 | List of frames, see class docstring for details. |
|
479 | 485 | |
|
480 | 486 | tb_offset : int, optional |
|
481 | 487 | Number of frames in the traceback to skip. If not given, the |
|
482 | 488 | instance value is used (set in constructor). |
|
483 | 489 | |
|
484 | 490 | context : int, optional |
|
485 | 491 | Number of lines of context information to print. |
|
486 | 492 | |
|
487 | 493 | Returns |
|
488 | 494 | ------- |
|
489 | 495 | String with formatted exception. |
|
490 | 496 | """ |
|
491 | 497 | tb_offset = self.tb_offset if tb_offset is None else tb_offset |
|
492 | 498 | Colors = self.Colors |
|
493 | 499 | out_list = [] |
|
494 | 500 | if elist: |
|
495 | 501 | |
|
496 | 502 | if tb_offset and len(elist) > tb_offset: |
|
497 | 503 | elist = elist[tb_offset:] |
|
498 | 504 | |
|
499 | 505 | out_list.append('Traceback %s(most recent call last)%s:' % |
|
500 |
|
|
|
506 | (Colors.normalEm, Colors.Normal) + '\n') | |
|
501 | 507 | out_list.extend(self._format_list(elist)) |
|
502 | 508 | # The exception info should be a single entry in the list. |
|
503 | 509 | lines = ''.join(self._format_exception_only(etype, value)) |
|
504 | 510 | out_list.append(lines) |
|
505 | 511 | |
|
506 | 512 | # Note: this code originally read: |
|
507 | 513 | |
|
508 | 514 | ## for line in lines[:-1]: |
|
509 | 515 | ## out_list.append(" "+line) |
|
510 | 516 | ## out_list.append(lines[-1]) |
|
511 | 517 | |
|
512 | 518 | # This means it was indenting everything but the last line by a little |
|
513 | 519 | # bit. I've disabled this for now, but if we see ugliness somewhre we |
|
514 | 520 | # can restore it. |
|
515 | 521 | |
|
516 | 522 | return out_list |
|
517 | 523 | |
|
518 | 524 | def _format_list(self, extracted_list): |
|
519 | 525 | """Format a list of traceback entry tuples for printing. |
|
520 | 526 | |
|
521 | 527 | Given a list of tuples as returned by extract_tb() or |
|
522 | 528 | extract_stack(), return a list of strings ready for printing. |
|
523 | 529 | Each string in the resulting list corresponds to the item with the |
|
524 | 530 | same index in the argument list. Each string ends in a newline; |
|
525 | 531 | the strings may contain internal newlines as well, for those items |
|
526 | 532 | whose source text line is not None. |
|
527 | 533 | |
|
528 | 534 | Lifted almost verbatim from traceback.py |
|
529 | 535 | """ |
|
530 | 536 | |
|
531 | 537 | Colors = self.Colors |
|
532 | 538 | list = [] |
|
533 | 539 | for filename, lineno, name, line in extracted_list[:-1]: |
|
534 | 540 | item = ' File %s"%s"%s, line %s%d%s, in %s%s%s\n' % \ |
|
535 |
|
|
|
536 |
|
|
|
537 |
|
|
|
541 | (Colors.filename, filename, Colors.Normal, | |
|
542 | Colors.lineno, lineno, Colors.Normal, | |
|
543 | Colors.name, name, Colors.Normal) | |
|
538 | 544 | if line: |
|
539 | 545 | item += ' %s\n' % line.strip() |
|
540 | 546 | list.append(item) |
|
541 | 547 | # Emphasize the last entry |
|
542 | 548 | filename, lineno, name, line = extracted_list[-1] |
|
543 | 549 | item = '%s File %s"%s"%s, line %s%d%s, in %s%s%s%s\n' % \ |
|
544 |
|
|
|
545 |
|
|
|
546 |
|
|
|
547 |
|
|
|
548 |
|
|
|
550 | (Colors.normalEm, | |
|
551 | Colors.filenameEm, filename, Colors.normalEm, | |
|
552 | Colors.linenoEm, lineno, Colors.normalEm, | |
|
553 | Colors.nameEm, name, Colors.normalEm, | |
|
554 | Colors.Normal) | |
|
549 | 555 | if line: |
|
550 | 556 | item += '%s %s%s\n' % (Colors.line, line.strip(), |
|
551 |
|
|
|
557 | Colors.Normal) | |
|
552 | 558 | list.append(item) |
|
553 | 559 | #from pprint import pformat; print 'LISTTB', pformat(list) # dbg |
|
554 | 560 | return list |
|
555 | 561 | |
|
556 | 562 | def _format_exception_only(self, etype, value): |
|
557 | 563 | """Format the exception part of a traceback. |
|
558 | 564 | |
|
559 | 565 | The arguments are the exception type and value such as given by |
|
560 | 566 | sys.exc_info()[:2]. The return value is a list of strings, each ending |
|
561 | 567 | in a newline. Normally, the list contains a single string; however, |
|
562 | 568 | for SyntaxError exceptions, it contains several lines that (when |
|
563 | 569 | printed) display detailed information about where the syntax error |
|
564 | 570 | occurred. The message indicating which exception occurred is the |
|
565 | 571 | always last string in the list. |
|
566 | 572 | |
|
567 | 573 | Also lifted nearly verbatim from traceback.py |
|
568 | 574 | """ |
|
569 | 575 | have_filedata = False |
|
570 | 576 | Colors = self.Colors |
|
571 | 577 | list = [] |
|
572 | 578 | stype = Colors.excName + etype.__name__ + Colors.Normal |
|
573 | 579 | if value is None: |
|
574 | 580 | # Not sure if this can still happen in Python 2.6 and above |
|
575 |
list.append( |
|
|
581 | list.append(py3compat.cast_unicode(stype) + '\n') | |
|
576 | 582 | else: |
|
577 | 583 | if issubclass(etype, SyntaxError): |
|
578 | 584 | have_filedata = True |
|
579 | 585 | #print 'filename is',filename # dbg |
|
580 | 586 | if not value.filename: value.filename = "<string>" |
|
581 | 587 | if value.lineno: |
|
582 | 588 | lineno = value.lineno |
|
583 | 589 | textline = ulinecache.getline(value.filename, value.lineno) |
|
584 | 590 | else: |
|
585 | 591 | lineno = 'unknown' |
|
586 | 592 | textline = '' |
|
587 | 593 | list.append('%s File %s"%s"%s, line %s%s%s\n' % \ |
|
588 | (Colors.normalEm, | |
|
589 | Colors.filenameEm, py3compat.cast_unicode(value.filename), Colors.normalEm, | |
|
590 | Colors.linenoEm, lineno, Colors.Normal )) | |
|
594 | (Colors.normalEm, | |
|
595 | Colors.filenameEm, py3compat.cast_unicode(value.filename), Colors.normalEm, | |
|
596 | Colors.linenoEm, lineno, Colors.Normal )) | |
|
591 | 597 | if textline == '': |
|
592 | 598 | textline = py3compat.cast_unicode(value.text, "utf-8") |
|
593 | 599 | |
|
594 | 600 | if textline is not None: |
|
595 | 601 | i = 0 |
|
596 | 602 | while i < len(textline) and textline[i].isspace(): |
|
597 | 603 | i += 1 |
|
598 | 604 | list.append('%s %s%s\n' % (Colors.line, |
|
599 | 605 | textline.strip(), |
|
600 | 606 | Colors.Normal)) |
|
601 | 607 | if value.offset is not None: |
|
602 | 608 | s = ' ' |
|
603 | for c in textline[i:value.offset-1]: | |
|
609 | for c in textline[i:value.offset - 1]: | |
|
604 | 610 | if c.isspace(): |
|
605 | 611 | s += c |
|
606 | 612 | else: |
|
607 | 613 | s += ' ' |
|
608 | 614 | list.append('%s%s^%s\n' % (Colors.caret, s, |
|
609 |
Colors.Normal) |
|
|
615 | Colors.Normal)) | |
|
610 | 616 | |
|
611 | 617 | try: |
|
612 | 618 | s = value.msg |
|
613 | 619 | except Exception: |
|
614 | 620 | s = self._some_str(value) |
|
615 | 621 | if s: |
|
616 | 622 | list.append('%s%s:%s %s\n' % (str(stype), Colors.excName, |
|
617 | 623 | Colors.Normal, s)) |
|
618 | 624 | else: |
|
619 | 625 | list.append('%s\n' % str(stype)) |
|
620 | 626 | |
|
621 | 627 | # sync with user hooks |
|
622 | 628 | if have_filedata: |
|
623 | 629 | ipinst = get_ipython() |
|
624 | 630 | if ipinst is not None: |
|
625 | 631 | ipinst.hooks.synchronize_with_editor(value.filename, value.lineno, 0) |
|
626 | 632 | |
|
627 | 633 | return list |
|
628 | 634 | |
|
629 | 635 | def get_exception_only(self, etype, value): |
|
630 | 636 | """Only print the exception type and message, without a traceback. |
|
631 | 637 | |
|
632 | 638 | Parameters |
|
633 | 639 | ---------- |
|
634 | 640 | etype : exception type |
|
635 | 641 | value : exception value |
|
636 | 642 | """ |
|
637 | 643 | return ListTB.structured_traceback(self, etype, value, []) |
|
638 | 644 | |
|
639 | ||
|
640 | 645 | def show_exception_only(self, etype, evalue): |
|
641 | 646 | """Only print the exception type and message, without a traceback. |
|
642 | 647 | |
|
643 | 648 | Parameters |
|
644 | 649 | ---------- |
|
645 | 650 | etype : exception type |
|
646 | 651 | value : exception value |
|
647 | 652 | """ |
|
648 | 653 | # This method needs to use __call__ from *this* class, not the one from |
|
649 | 654 | # a subclass whose signature or behavior may be different |
|
650 | 655 | ostream = self.ostream |
|
651 | 656 | ostream.flush() |
|
652 | 657 | ostream.write('\n'.join(self.get_exception_only(etype, evalue))) |
|
653 | 658 | ostream.flush() |
|
654 | 659 | |
|
655 | 660 | def _some_str(self, value): |
|
656 | 661 | # Lifted from traceback.py |
|
657 | 662 | try: |
|
658 | 663 | return str(value) |
|
659 | 664 | except: |
|
660 | 665 | return '<unprintable %s object>' % type(value).__name__ |
|
661 | 666 | |
|
667 | ||
|
662 | 668 | #---------------------------------------------------------------------------- |
|
663 | 669 | class VerboseTB(TBTools): |
|
664 | 670 | """A port of Ka-Ping Yee's cgitb.py module that outputs color text instead |
|
665 | 671 | of HTML. Requires inspect and pydoc. Crazy, man. |
|
666 | 672 | |
|
667 | 673 | Modified version which optionally strips the topmost entries from the |
|
668 | 674 | traceback, to be used with alternate interpreters (because their own code |
|
669 | 675 | would appear in the traceback).""" |
|
670 | 676 | |
|
671 |
def __init__(self,color_scheme |
|
|
677 | def __init__(self, color_scheme='Linux', call_pdb=False, ostream=None, | |
|
672 | 678 | tb_offset=0, long_header=False, include_vars=True, |
|
673 | 679 | check_cache=None): |
|
674 | 680 | """Specify traceback offset, headers and color scheme. |
|
675 | 681 | |
|
676 | 682 | Define how many frames to drop from the tracebacks. Calling it with |
|
677 | 683 | tb_offset=1 allows use of this handler in interpreters which will have |
|
678 | 684 | their own code at the top of the traceback (VerboseTB will first |
|
679 | 685 | remove that frame before printing the traceback info).""" |
|
680 | 686 | TBTools.__init__(self, color_scheme=color_scheme, call_pdb=call_pdb, |
|
681 | 687 | ostream=ostream) |
|
682 | 688 | self.tb_offset = tb_offset |
|
683 | 689 | self.long_header = long_header |
|
684 | 690 | self.include_vars = include_vars |
|
685 | 691 | # By default we use linecache.checkcache, but the user can provide a |
|
686 | 692 | # different check_cache implementation. This is used by the IPython |
|
687 | 693 | # kernel to provide tracebacks for interactive code that is cached, |
|
688 | 694 | # by a compiler instance that flushes the linecache but preserves its |
|
689 | 695 | # own code cache. |
|
690 | 696 | if check_cache is None: |
|
691 | 697 | check_cache = linecache.checkcache |
|
692 | 698 | self.check_cache = check_cache |
|
693 | 699 | |
|
694 | 700 | def structured_traceback(self, etype, evalue, etb, tb_offset=None, |
|
695 | 701 | context=5): |
|
696 | 702 | """Return a nice text document describing the traceback.""" |
|
697 | 703 | |
|
698 | 704 | tb_offset = self.tb_offset if tb_offset is None else tb_offset |
|
699 | 705 | |
|
700 | 706 | # some locals |
|
701 | 707 | try: |
|
702 | 708 | etype = etype.__name__ |
|
703 | 709 | except AttributeError: |
|
704 | 710 | pass |
|
705 |
Colors |
|
|
706 |
ColorsNormal |
|
|
707 |
col_scheme |
|
|
708 |
indent |
|
|
709 |
em_normal |
|
|
710 |
undefined |
|
|
711 | exc = '%s%s%s' % (Colors.excName,etype,ColorsNormal) | |
|
711 | Colors = self.Colors # just a shorthand + quicker name lookup | |
|
712 | ColorsNormal = Colors.Normal # used a lot | |
|
713 | col_scheme = self.color_scheme_table.active_scheme_name | |
|
714 | indent = ' ' * INDENT_SIZE | |
|
715 | em_normal = '%s\n%s%s' % (Colors.valEm, indent, ColorsNormal) | |
|
716 | undefined = '%sundefined%s' % (Colors.em, ColorsNormal) | |
|
717 | exc = '%s%s%s' % (Colors.excName, etype, ColorsNormal) | |
|
712 | 718 | |
|
713 | 719 | # some internal-use functions |
|
714 | 720 | def text_repr(value): |
|
715 | 721 | """Hopefully pretty robust repr equivalent.""" |
|
716 | 722 | # this is pretty horrible but should always return *something* |
|
717 | 723 | try: |
|
718 | 724 | return pydoc.text.repr(value) |
|
719 | 725 | except KeyboardInterrupt: |
|
720 | 726 | raise |
|
721 | 727 | except: |
|
722 | 728 | try: |
|
723 | 729 | return repr(value) |
|
724 | 730 | except KeyboardInterrupt: |
|
725 | 731 | raise |
|
726 | 732 | except: |
|
727 | 733 | try: |
|
728 | 734 | # all still in an except block so we catch |
|
729 | 735 | # getattr raising |
|
730 | 736 | name = getattr(value, '__name__', None) |
|
731 | 737 | if name: |
|
732 | 738 | # ick, recursion |
|
733 | 739 | return text_repr(name) |
|
734 | 740 | klass = getattr(value, '__class__', None) |
|
735 | 741 | if klass: |
|
736 | 742 | return '%s instance' % text_repr(klass) |
|
737 | 743 | except KeyboardInterrupt: |
|
738 | 744 | raise |
|
739 | 745 | except: |
|
740 | 746 | return 'UNRECOVERABLE REPR FAILURE' |
|
741 | def eqrepr(value, repr=text_repr): return '=%s' % repr(value) | |
|
742 |
def |
|
|
747 | ||
|
748 | def eqrepr(value, repr=text_repr): | |
|
749 | return '=%s' % repr(value) | |
|
750 | ||
|
751 | def nullrepr(value, repr=text_repr): | |
|
752 | return '' | |
|
743 | 753 | |
|
744 | 754 | # meat of the code begins |
|
745 | 755 | try: |
|
746 | 756 | etype = etype.__name__ |
|
747 | 757 | except AttributeError: |
|
748 | 758 | pass |
|
749 | 759 | |
|
750 | 760 | if self.long_header: |
|
751 | 761 | # Header with the exception type, python version, and date |
|
752 | 762 | pyver = 'Python ' + sys.version.split()[0] + ': ' + sys.executable |
|
753 | 763 | date = time.ctime(time.time()) |
|
754 | 764 | |
|
755 | head = '%s%s%s\n%s%s%s\n%s' % (Colors.topline, '-'*75, ColorsNormal, | |
|
756 | exc, ' '*(75-len(str(etype))-len(pyver)), | |
|
765 | head = '%s%s%s\n%s%s%s\n%s' % (Colors.topline, '-' * 75, ColorsNormal, | |
|
766 | exc, ' ' * (75 - len(str(etype)) - len(pyver)), | |
|
757 | 767 | pyver, date.rjust(75) ) |
|
758 | head += "\nA problem occured executing Python code. Here is the sequence of function"\ | |
|
768 | head += "\nA problem occured executing Python code. Here is the sequence of function" \ | |
|
759 | 769 | "\ncalls leading up to the error, with the most recent (innermost) call last." |
|
760 | 770 | else: |
|
761 | 771 | # Simplified header |
|
762 | head = '%s%s%s\n%s%s' % (Colors.topline, '-'*75, ColorsNormal,exc, | |
|
763 | 'Traceback (most recent call last)'.\ | |
|
764 |
|
|
|
772 | head = '%s%s%s\n%s%s' % (Colors.topline, '-' * 75, ColorsNormal, exc, | |
|
773 | 'Traceback (most recent call last)'. \ | |
|
774 | rjust(75 - len(str(etype))) ) | |
|
765 | 775 | frames = [] |
|
766 | 776 | # Flush cache before calling inspect. This helps alleviate some of the |
|
767 | 777 | # problems with python 2.3's inspect.py. |
|
768 | 778 | ##self.check_cache() |
|
769 | 779 | # Drop topmost frames if requested |
|
770 | 780 | try: |
|
771 | 781 | # Try the default getinnerframes and Alex's: Alex's fixes some |
|
772 | 782 | # problems, but it generates empty tracebacks for console errors |
|
773 | 783 | # (5 blanks lines) where none should be returned. |
|
774 | 784 | #records = inspect.getinnerframes(etb, context)[tb_offset:] |
|
775 | 785 | #print 'python records:', records # dbg |
|
776 | 786 | records = _fixed_getinnerframes(etb, context, tb_offset) |
|
777 | 787 | #print 'alex records:', records # dbg |
|
778 | 788 | except: |
|
779 | 789 | |
|
780 | 790 | # FIXME: I've been getting many crash reports from python 2.3 |
|
781 | 791 | # users, traceable to inspect.py. If I can find a small test-case |
|
782 | 792 | # to reproduce this, I should either write a better workaround or |
|
783 | 793 | # file a bug report against inspect (if that's the real problem). |
|
784 | 794 | # So far, I haven't been able to find an isolated example to |
|
785 | 795 | # reproduce the problem. |
|
786 | 796 | inspect_error() |
|
787 | 797 | traceback.print_exc(file=self.ostream) |
|
788 | 798 | info('\nUnfortunately, your original traceback can not be constructed.\n') |
|
789 | 799 | return '' |
|
790 | 800 | |
|
791 | 801 | # build some color string templates outside these nested loops |
|
792 |
tpl_link |
|
|
793 |
tpl_call |
|
|
794 |
|
|
|
795 |
tpl_call_fail |
|
|
796 |
|
|
|
797 |
tpl_local_var |
|
|
802 | tpl_link = '%s%%s%s' % (Colors.filenameEm, ColorsNormal) | |
|
803 | tpl_call = 'in %s%%s%s%%s%s' % (Colors.vName, Colors.valEm, | |
|
804 | ColorsNormal) | |
|
805 | tpl_call_fail = 'in %s%%s%s(***failed resolving arguments***)%s' % \ | |
|
806 | (Colors.vName, Colors.valEm, ColorsNormal) | |
|
807 | tpl_local_var = '%s%%s%s' % (Colors.vName, ColorsNormal) | |
|
798 | 808 | tpl_global_var = '%sglobal%s %s%%s%s' % (Colors.em, ColorsNormal, |
|
799 | 809 | Colors.vName, ColorsNormal) |
|
800 |
tpl_name_val |
|
|
801 |
tpl_line |
|
|
802 |
tpl_line_em |
|
|
803 |
|
|
|
810 | tpl_name_val = '%%s %s= %%s%s' % (Colors.valEm, ColorsNormal) | |
|
811 | tpl_line = '%s%%s%s %%s' % (Colors.lineno, ColorsNormal) | |
|
812 | tpl_line_em = '%s%%s%s %%s%s' % (Colors.linenoEm, Colors.line, | |
|
813 | ColorsNormal) | |
|
804 | 814 | |
|
805 | 815 | # now, loop over all records printing context and info |
|
806 | 816 | abspath = os.path.abspath |
|
807 | 817 | for frame, file, lnum, func, lines, index in records: |
|
808 | 818 | #print '*** record:',file,lnum,func,lines,index # dbg |
|
809 | 819 | if not file: |
|
810 | 820 | file = '?' |
|
811 | elif not(file.startswith(str("<")) and file.endswith(str(">"))): | |
|
821 | elif not (file.startswith(str("<")) and file.endswith(str(">"))): | |
|
812 | 822 | # Guess that filenames like <string> aren't real filenames, so |
|
813 | 823 | # don't call abspath on them. |
|
814 | 824 | try: |
|
815 | 825 | file = abspath(file) |
|
816 | 826 | except OSError: |
|
817 | 827 | # Not sure if this can still happen: abspath now works with |
|
818 | 828 | # file names like <string> |
|
819 | 829 | pass |
|
820 | 830 | file = py3compat.cast_unicode(file, util_path.fs_encoding) |
|
821 | 831 | link = tpl_link % file |
|
822 | 832 | args, varargs, varkw, locals = inspect.getargvalues(frame) |
|
823 | 833 | |
|
824 | 834 | if func == '?': |
|
825 | 835 | call = '' |
|
826 | 836 | else: |
|
827 | 837 | # Decide whether to include variable details or not |
|
828 | 838 | var_repr = self.include_vars and eqrepr or nullrepr |
|
829 | 839 | try: |
|
830 | call = tpl_call % (func,inspect.formatargvalues(args, | |
|
831 | varargs, varkw, | |
|
832 | locals,formatvalue=var_repr)) | |
|
840 | call = tpl_call % (func, inspect.formatargvalues(args, | |
|
841 | varargs, varkw, | |
|
842 | locals, formatvalue=var_repr)) | |
|
833 | 843 | except KeyError: |
|
834 | 844 | # This happens in situations like errors inside generator |
|
835 | 845 | # expressions, where local variables are listed in the |
|
836 | 846 | # line, but can't be extracted from the frame. I'm not |
|
837 | 847 | # 100% sure this isn't actually a bug in inspect itself, |
|
838 | 848 | # but since there's no info for us to compute with, the |
|
839 | 849 | # best we can do is report the failure and move on. Here |
|
840 | 850 | # we must *not* call any traceback construction again, |
|
841 | 851 | # because that would mess up use of %debug later on. So we |
|
842 | 852 | # simply report the failure and move on. The only |
|
843 | 853 | # limitation will be that this frame won't have locals |
|
844 | 854 | # listed in the call signature. Quite subtle problem... |
|
845 | 855 | # I can't think of a good way to validate this in a unit |
|
846 | 856 | # test, but running a script consisting of: |
|
847 | 857 | # dict( (k,v.strip()) for (k,v) in range(10) ) |
|
848 | 858 | # will illustrate the error, if this exception catch is |
|
849 | 859 | # disabled. |
|
850 | 860 | call = tpl_call_fail % func |
|
851 | ||
|
861 | ||
|
852 | 862 | # Don't attempt to tokenize binary files. |
|
853 | 863 | if file.endswith(('.so', '.pyd', '.dll')): |
|
854 | frames.append('%s %s\n' % (link,call)) | |
|
864 | frames.append('%s %s\n' % (link, call)) | |
|
855 | 865 | continue |
|
856 | elif file.endswith(('.pyc','.pyo')): | |
|
866 | elif file.endswith(('.pyc', '.pyo')): | |
|
857 | 867 | # Look up the corresponding source file. |
|
858 | 868 | file = openpy.source_from_cache(file) |
|
859 | 869 | |
|
860 | 870 | def linereader(file=file, lnum=[lnum], getline=ulinecache.getline): |
|
861 | 871 | line = getline(file, lnum[0]) |
|
862 | 872 | lnum[0] += 1 |
|
863 | 873 | return line |
|
864 | 874 | |
|
865 | 875 | # Build the list of names on this line of code where the exception |
|
866 | 876 | # occurred. |
|
867 | 877 | try: |
|
868 | 878 | names = [] |
|
869 | 879 | name_cont = False |
|
870 | ||
|
880 | ||
|
871 | 881 | for token_type, token, start, end, line in generate_tokens(linereader): |
|
872 | 882 | # build composite names |
|
873 | 883 | if token_type == tokenize.NAME and token not in keyword.kwlist: |
|
874 | 884 | if name_cont: |
|
875 | 885 | # Continuation of a dotted name |
|
876 | 886 | try: |
|
877 | 887 | names[-1].append(token) |
|
878 | 888 | except IndexError: |
|
879 | 889 | names.append([token]) |
|
880 | 890 | name_cont = False |
|
881 | 891 | else: |
|
882 | 892 | # Regular new names. We append everything, the caller |
|
883 | 893 | # will be responsible for pruning the list later. It's |
|
884 | 894 | # very tricky to try to prune as we go, b/c composite |
|
885 | 895 | # names can fool us. The pruning at the end is easy |
|
886 | 896 | # to do (or the caller can print a list with repeated |
|
887 | 897 | # names if so desired. |
|
888 | 898 | names.append([token]) |
|
889 | 899 | elif token == '.': |
|
890 | 900 | name_cont = True |
|
891 | 901 | elif token_type == tokenize.NEWLINE: |
|
892 | 902 | break |
|
893 | ||
|
903 | ||
|
894 | 904 | except (IndexError, UnicodeDecodeError): |
|
895 | 905 | # signals exit of tokenizer |
|
896 | 906 | pass |
|
897 | 907 | except tokenize.TokenError as msg: |
|
898 | 908 | _m = ("An unexpected error occurred while tokenizing input\n" |
|
899 | 909 | "The following traceback may be corrupted or invalid\n" |
|
900 | 910 | "The error message is: %s\n" % msg) |
|
901 | 911 | error(_m) |
|
902 | 912 | |
|
903 | 913 | # Join composite names (e.g. "dict.fromkeys") |
|
904 | 914 | names = ['.'.join(n) for n in names] |
|
905 | 915 | # prune names list of duplicates, but keep the right order |
|
906 | 916 | unique_names = uniq_stable(names) |
|
907 | 917 | |
|
908 | 918 | # Start loop over vars |
|
909 | 919 | lvals = [] |
|
910 | 920 | if self.include_vars: |
|
911 | 921 | for name_full in unique_names: |
|
912 | name_base = name_full.split('.',1)[0] | |
|
922 | name_base = name_full.split('.', 1)[0] | |
|
913 | 923 | if name_base in frame.f_code.co_varnames: |
|
914 | 924 | if name_base in locals: |
|
915 | 925 | try: |
|
916 | value = repr(eval(name_full,locals)) | |
|
926 | value = repr(eval(name_full, locals)) | |
|
917 | 927 | except: |
|
918 | 928 | value = undefined |
|
919 | 929 | else: |
|
920 | 930 | value = undefined |
|
921 | 931 | name = tpl_local_var % name_full |
|
922 | 932 | else: |
|
923 | 933 | if name_base in frame.f_globals: |
|
924 | 934 | try: |
|
925 | value = repr(eval(name_full,frame.f_globals)) | |
|
935 | value = repr(eval(name_full, frame.f_globals)) | |
|
926 | 936 | except: |
|
927 | 937 | value = undefined |
|
928 | 938 | else: |
|
929 | 939 | value = undefined |
|
930 | 940 | name = tpl_global_var % name_full |
|
931 | lvals.append(tpl_name_val % (name,value)) | |
|
941 | lvals.append(tpl_name_val % (name, value)) | |
|
932 | 942 | if lvals: |
|
933 | lvals = '%s%s' % (indent,em_normal.join(lvals)) | |
|
943 | lvals = '%s%s' % (indent, em_normal.join(lvals)) | |
|
934 | 944 | else: |
|
935 | 945 | lvals = '' |
|
936 | 946 | |
|
937 | level = '%s %s\n' % (link,call) | |
|
947 | level = '%s %s\n' % (link, call) | |
|
938 | 948 | |
|
939 | 949 | if index is None: |
|
940 | 950 | frames.append(level) |
|
941 | 951 | else: |
|
942 | frames.append('%s%s' % (level,''.join( | |
|
943 | _format_traceback_lines(lnum,index,lines,Colors,lvals, | |
|
952 | frames.append('%s%s' % (level, ''.join( | |
|
953 | _format_traceback_lines(lnum, index, lines, Colors, lvals, | |
|
944 | 954 | col_scheme)))) |
|
945 | 955 | |
|
946 | 956 | # Get (safely) a string form of the exception info |
|
947 | 957 | try: |
|
948 | etype_str,evalue_str = map(str,(etype,evalue)) | |
|
958 | etype_str, evalue_str = map(str, (etype, evalue)) | |
|
949 | 959 | except: |
|
950 | 960 | # User exception is improperly defined. |
|
951 | etype,evalue = str,sys.exc_info()[:2] | |
|
952 | etype_str,evalue_str = map(str,(etype,evalue)) | |
|
961 | etype, evalue = str, sys.exc_info()[:2] | |
|
962 | etype_str, evalue_str = map(str, (etype, evalue)) | |
|
953 | 963 | # ... and format it |
|
954 | 964 | exception = ['%s%s%s: %s' % (Colors.excName, etype_str, |
|
955 | 965 | ColorsNormal, py3compat.cast_unicode(evalue_str))] |
|
956 | 966 | if (not py3compat.PY3) and type(evalue) is types.InstanceType: |
|
957 | 967 | try: |
|
958 | 968 | names = [w for w in dir(evalue) if isinstance(w, py3compat.string_types)] |
|
959 | 969 | except: |
|
960 | 970 | # Every now and then, an object with funny inernals blows up |
|
961 | 971 | # when dir() is called on it. We do the best we can to report |
|
962 | 972 | # the problem and continue |
|
963 | 973 | _m = '%sException reporting error (object with broken dir())%s:' |
|
964 | exception.append(_m % (Colors.excName,ColorsNormal)) | |
|
965 | etype_str,evalue_str = map(str,sys.exc_info()[:2]) | |
|
966 | exception.append('%s%s%s: %s' % (Colors.excName,etype_str, | |
|
967 | ColorsNormal, py3compat.cast_unicode(evalue_str))) | |
|
974 | exception.append(_m % (Colors.excName, ColorsNormal)) | |
|
975 | etype_str, evalue_str = map(str, sys.exc_info()[:2]) | |
|
976 | exception.append('%s%s%s: %s' % (Colors.excName, etype_str, | |
|
977 | ColorsNormal, py3compat.cast_unicode(evalue_str))) | |
|
968 | 978 | names = [] |
|
969 | 979 | for name in names: |
|
970 | 980 | value = text_repr(getattr(evalue, name)) |
|
971 | 981 | exception.append('\n%s%s = %s' % (indent, name, value)) |
|
972 | 982 | |
|
973 | 983 | # vds: >> |
|
974 | 984 | if records: |
|
975 |
|
|
|
976 |
|
|
|
977 |
|
|
|
978 |
|
|
|
979 |
|
|
|
980 |
|
|
|
985 | filepath, lnum = records[-1][1:3] | |
|
986 | #print "file:", str(file), "linenb", str(lnum) # dbg | |
|
987 | filepath = os.path.abspath(filepath) | |
|
988 | ipinst = get_ipython() | |
|
989 | if ipinst is not None: | |
|
990 | ipinst.hooks.synchronize_with_editor(filepath, lnum, 0) | |
|
981 | 991 | # vds: << |
|
982 | 992 | |
|
983 | 993 | # return all our info assembled as a single string |
|
984 | 994 | # return '%s\n\n%s\n%s' % (head,'\n'.join(frames),''.join(exception[0]) ) |
|
985 | 995 | return [head] + frames + [''.join(exception[0])] |
|
986 | 996 | |
|
987 | def debugger(self,force=False): | |
|
997 | def debugger(self, force=False): | |
|
988 | 998 | """Call up the pdb debugger if desired, always clean up the tb |
|
989 | 999 | reference. |
|
990 | 1000 | |
|
991 | 1001 | Keywords: |
|
992 | 1002 | |
|
993 | 1003 | - force(False): by default, this routine checks the instance call_pdb |
|
994 | 1004 | flag and does not actually invoke the debugger if the flag is false. |
|
995 | 1005 | The 'force' option forces the debugger to activate even if the flag |
|
996 | 1006 | is false. |
|
997 | 1007 | |
|
998 | 1008 | If the call_pdb flag is set, the pdb interactive debugger is |
|
999 | 1009 | invoked. In all cases, the self.tb reference to the current traceback |
|
1000 | 1010 | is deleted to prevent lingering references which hamper memory |
|
1001 | 1011 | management. |
|
1002 | 1012 | |
|
1003 | 1013 | Note that each call to pdb() does an 'import readline', so if your app |
|
1004 | 1014 | requires a special setup for the readline completers, you'll have to |
|
1005 | 1015 | fix that by hand after invoking the exception handler.""" |
|
1006 | 1016 | |
|
1007 | 1017 | if force or self.call_pdb: |
|
1008 | 1018 | if self.pdb is None: |
|
1009 | 1019 | self.pdb = debugger.Pdb( |
|
1010 | 1020 | self.color_scheme_table.active_scheme_name) |
|
1011 | 1021 | # the system displayhook may have changed, restore the original |
|
1012 | 1022 | # for pdb |
|
1013 | 1023 | display_trap = DisplayTrap(hook=sys.__displayhook__) |
|
1014 | 1024 | with display_trap: |
|
1015 | 1025 | self.pdb.reset() |
|
1016 | 1026 | # Find the right frame so we don't pop up inside ipython itself |
|
1017 | if hasattr(self,'tb') and self.tb is not None: | |
|
1027 | if hasattr(self, 'tb') and self.tb is not None: | |
|
1018 | 1028 | etb = self.tb |
|
1019 | 1029 | else: |
|
1020 | 1030 | etb = self.tb = sys.last_traceback |
|
1021 | 1031 | while self.tb is not None and self.tb.tb_next is not None: |
|
1022 | 1032 | self.tb = self.tb.tb_next |
|
1023 | 1033 | if etb and etb.tb_next: |
|
1024 | 1034 | etb = etb.tb_next |
|
1025 | 1035 | self.pdb.botframe = etb.tb_frame |
|
1026 | 1036 | self.pdb.interaction(self.tb.tb_frame, self.tb) |
|
1027 | 1037 | |
|
1028 | if hasattr(self,'tb'): | |
|
1038 | if hasattr(self, 'tb'): | |
|
1029 | 1039 | del self.tb |
|
1030 | 1040 | |
|
1031 | 1041 | def handler(self, info=None): |
|
1032 | 1042 | (etype, evalue, etb) = info or sys.exc_info() |
|
1033 | 1043 | self.tb = etb |
|
1034 | 1044 | ostream = self.ostream |
|
1035 | 1045 | ostream.flush() |
|
1036 | 1046 | ostream.write(self.text(etype, evalue, etb)) |
|
1037 | 1047 | ostream.write('\n') |
|
1038 | 1048 | ostream.flush() |
|
1039 | 1049 | |
|
1040 | 1050 | # Changed so an instance can just be called as VerboseTB_inst() and print |
|
1041 | 1051 | # out the right info on its own. |
|
1042 | 1052 | def __call__(self, etype=None, evalue=None, etb=None): |
|
1043 | 1053 | """This hook can replace sys.excepthook (for Python 2.1 or higher).""" |
|
1044 | 1054 | if etb is None: |
|
1045 | 1055 | self.handler() |
|
1046 | 1056 | else: |
|
1047 | 1057 | self.handler((etype, evalue, etb)) |
|
1048 | 1058 | try: |
|
1049 | 1059 | self.debugger() |
|
1050 | 1060 | except KeyboardInterrupt: |
|
1051 | 1061 | print("\nKeyboardInterrupt") |
|
1052 | 1062 | |
|
1063 | ||
|
1053 | 1064 | #---------------------------------------------------------------------------- |
|
1054 | 1065 | class FormattedTB(VerboseTB, ListTB): |
|
1055 | 1066 | """Subclass ListTB but allow calling with a traceback. |
|
1056 | 1067 | |
|
1057 | 1068 | It can thus be used as a sys.excepthook for Python > 2.1. |
|
1058 | 1069 | |
|
1059 | 1070 | Also adds 'Context' and 'Verbose' modes, not available in ListTB. |
|
1060 | 1071 | |
|
1061 | 1072 | Allows a tb_offset to be specified. This is useful for situations where |
|
1062 | 1073 | one needs to remove a number of topmost frames from the traceback (such as |
|
1063 | 1074 | occurs with python programs that themselves execute other python code, |
|
1064 | 1075 | like Python shells). """ |
|
1065 | 1076 | |
|
1066 | 1077 | def __init__(self, mode='Plain', color_scheme='Linux', call_pdb=False, |
|
1067 | 1078 | ostream=None, |
|
1068 | 1079 | tb_offset=0, long_header=False, include_vars=False, |
|
1069 | 1080 | check_cache=None): |
|
1070 | 1081 | |
|
1071 | 1082 | # NEVER change the order of this list. Put new modes at the end: |
|
1072 | self.valid_modes = ['Plain','Context','Verbose'] | |
|
1083 | self.valid_modes = ['Plain', 'Context', 'Verbose'] | |
|
1073 | 1084 | self.verbose_modes = self.valid_modes[1:3] |
|
1074 | 1085 | |
|
1075 | 1086 | VerboseTB.__init__(self, color_scheme=color_scheme, call_pdb=call_pdb, |
|
1076 | 1087 | ostream=ostream, tb_offset=tb_offset, |
|
1077 | 1088 | long_header=long_header, include_vars=include_vars, |
|
1078 | 1089 | check_cache=check_cache) |
|
1079 | 1090 | |
|
1080 | 1091 | # Different types of tracebacks are joined with different separators to |
|
1081 | 1092 | # form a single string. They are taken from this dict |
|
1082 | 1093 | self._join_chars = dict(Plain='', Context='\n', Verbose='\n') |
|
1083 | 1094 | # set_mode also sets the tb_join_char attribute |
|
1084 | 1095 | self.set_mode(mode) |
|
1085 | 1096 | |
|
1086 | def _extract_tb(self,tb): | |
|
1097 | def _extract_tb(self, tb): | |
|
1087 | 1098 | if tb: |
|
1088 | 1099 | return traceback.extract_tb(tb) |
|
1089 | 1100 | else: |
|
1090 | 1101 | return None |
|
1091 | 1102 | |
|
1092 | 1103 | def structured_traceback(self, etype, value, tb, tb_offset=None, context=5): |
|
1093 | 1104 | tb_offset = self.tb_offset if tb_offset is None else tb_offset |
|
1094 | 1105 | mode = self.mode |
|
1095 | 1106 | if mode in self.verbose_modes: |
|
1096 | 1107 | # Verbose modes need a full traceback |
|
1097 | 1108 | return VerboseTB.structured_traceback( |
|
1098 | 1109 | self, etype, value, tb, tb_offset, context |
|
1099 | 1110 | ) |
|
1100 | 1111 | else: |
|
1101 | 1112 | # We must check the source cache because otherwise we can print |
|
1102 | 1113 | # out-of-date source code. |
|
1103 | 1114 | self.check_cache() |
|
1104 | 1115 | # Now we can extract and format the exception |
|
1105 | 1116 | elist = self._extract_tb(tb) |
|
1106 | 1117 | return ListTB.structured_traceback( |
|
1107 | 1118 | self, etype, value, elist, tb_offset, context |
|
1108 | 1119 | ) |
|
1109 | 1120 | |
|
1110 | 1121 | def stb2text(self, stb): |
|
1111 | 1122 | """Convert a structured traceback (a list) to a string.""" |
|
1112 | 1123 | return self.tb_join_char.join(stb) |
|
1113 | 1124 | |
|
1114 | 1125 | |
|
1115 | def set_mode(self,mode=None): | |
|
1126 | def set_mode(self, mode=None): | |
|
1116 | 1127 | """Switch to the desired mode. |
|
1117 | 1128 | |
|
1118 | 1129 | If mode is not specified, cycles through the available modes.""" |
|
1119 | 1130 | |
|
1120 | 1131 | if not mode: |
|
1121 | 1132 | new_idx = ( self.valid_modes.index(self.mode) + 1 ) % \ |
|
1122 | 1133 | len(self.valid_modes) |
|
1123 | 1134 | self.mode = self.valid_modes[new_idx] |
|
1124 | 1135 | elif mode not in self.valid_modes: |
|
1125 | raise ValueError('Unrecognized mode in FormattedTB: <'+mode+'>\n' | |
|
1126 | 'Valid modes: '+str(self.valid_modes)) | |
|
1136 | raise ValueError('Unrecognized mode in FormattedTB: <' + mode + '>\n' | |
|
1137 | 'Valid modes: ' + str(self.valid_modes)) | |
|
1127 | 1138 | else: |
|
1128 | 1139 | self.mode = mode |
|
1129 | 1140 | # include variable details only in 'Verbose' mode |
|
1130 | 1141 | self.include_vars = (self.mode == self.valid_modes[2]) |
|
1131 | 1142 | # Set the join character for generating text tracebacks |
|
1132 | 1143 | self.tb_join_char = self._join_chars[self.mode] |
|
1133 | 1144 | |
|
1134 | # some convenient shorcuts | |
|
1145 | # some convenient shortcuts | |
|
1135 | 1146 | def plain(self): |
|
1136 | 1147 | self.set_mode(self.valid_modes[0]) |
|
1137 | 1148 | |
|
1138 | 1149 | def context(self): |
|
1139 | 1150 | self.set_mode(self.valid_modes[1]) |
|
1140 | 1151 | |
|
1141 | 1152 | def verbose(self): |
|
1142 | 1153 | self.set_mode(self.valid_modes[2]) |
|
1143 | 1154 | |
|
1155 | ||
|
1144 | 1156 | #---------------------------------------------------------------------------- |
|
1145 | 1157 | class AutoFormattedTB(FormattedTB): |
|
1146 | 1158 | """A traceback printer which can be called on the fly. |
|
1147 | 1159 | |
|
1148 | 1160 | It will find out about exceptions by itself. |
|
1149 | 1161 | |
|
1150 | 1162 | A brief example:: |
|
1151 | 1163 | |
|
1152 | 1164 | AutoTB = AutoFormattedTB(mode = 'Verbose',color_scheme='Linux') |
|
1153 | 1165 | try: |
|
1154 | 1166 | ... |
|
1155 | 1167 | except: |
|
1156 | 1168 | AutoTB() # or AutoTB(out=logfile) where logfile is an open file object |
|
1157 | 1169 | """ |
|
1158 | 1170 | |
|
1159 | def __call__(self,etype=None,evalue=None,etb=None, | |
|
1160 | out=None,tb_offset=None): | |
|
1171 | def __call__(self, etype=None, evalue=None, etb=None, | |
|
1172 | out=None, tb_offset=None): | |
|
1161 | 1173 | """Print out a formatted exception traceback. |
|
1162 | 1174 | |
|
1163 | 1175 | Optional arguments: |
|
1164 | 1176 | - out: an open file-like object to direct output to. |
|
1165 | 1177 | |
|
1166 | 1178 | - tb_offset: the number of frames to skip over in the stack, on a |
|
1167 | 1179 | per-call basis (this overrides temporarily the instance's tb_offset |
|
1168 | 1180 | given at initialization time. """ |
|
1169 | 1181 | |
|
1170 | ||
|
1171 | 1182 | if out is None: |
|
1172 | 1183 | out = self.ostream |
|
1173 | 1184 | out.flush() |
|
1174 | 1185 | out.write(self.text(etype, evalue, etb, tb_offset)) |
|
1175 | 1186 | out.write('\n') |
|
1176 | 1187 | out.flush() |
|
1177 | 1188 | # FIXME: we should remove the auto pdb behavior from here and leave |
|
1178 | 1189 | # that to the clients. |
|
1179 | 1190 | try: |
|
1180 | 1191 | self.debugger() |
|
1181 | 1192 | except KeyboardInterrupt: |
|
1182 | 1193 | print("\nKeyboardInterrupt") |
|
1183 | 1194 | |
|
1184 | 1195 | def structured_traceback(self, etype=None, value=None, tb=None, |
|
1185 | 1196 | tb_offset=None, context=5): |
|
1186 | 1197 | if etype is None: |
|
1187 | etype,value,tb = sys.exc_info() | |
|
1198 | etype, value, tb = sys.exc_info() | |
|
1188 | 1199 | self.tb = tb |
|
1189 | 1200 | return FormattedTB.structured_traceback( |
|
1190 | 1201 | self, etype, value, tb, tb_offset, context) |
|
1191 | 1202 | |
|
1203 | ||
|
1192 | 1204 | #--------------------------------------------------------------------------- |
|
1193 | 1205 | |
|
1194 | 1206 | # A simple class to preserve Nathan's original functionality. |
|
1195 | 1207 | class ColorTB(FormattedTB): |
|
1196 | 1208 | """Shorthand to initialize a FormattedTB in Linux colors mode.""" |
|
1197 | def __init__(self,color_scheme='Linux',call_pdb=0): | |
|
1198 | FormattedTB.__init__(self,color_scheme=color_scheme, | |
|
1209 | ||
|
1210 | def __init__(self, color_scheme='Linux', call_pdb=0): | |
|
1211 | FormattedTB.__init__(self, color_scheme=color_scheme, | |
|
1199 | 1212 | call_pdb=call_pdb) |
|
1200 | 1213 | |
|
1201 | 1214 | |
|
1202 | 1215 | class SyntaxTB(ListTB): |
|
1203 | 1216 | """Extension which holds some state: the last exception value""" |
|
1204 | 1217 | |
|
1205 |
def __init__(self,color_scheme |
|
|
1206 | ListTB.__init__(self,color_scheme) | |
|
1218 | def __init__(self, color_scheme='NoColor'): | |
|
1219 | ListTB.__init__(self, color_scheme) | |
|
1207 | 1220 | self.last_syntax_error = None |
|
1208 | 1221 | |
|
1209 | 1222 | def __call__(self, etype, value, elist): |
|
1210 | 1223 | self.last_syntax_error = value |
|
1211 | ListTB.__call__(self,etype,value,elist) | |
|
1224 | ListTB.__call__(self, etype, value, elist) | |
|
1212 | 1225 | |
|
1213 | 1226 | def structured_traceback(self, etype, value, elist, tb_offset=None, |
|
1214 | 1227 | context=5): |
|
1215 | 1228 | # If the source file has been edited, the line in the syntax error can |
|
1216 | 1229 | # be wrong (retrieved from an outdated cache). This replaces it with |
|
1217 | 1230 | # the current value. |
|
1218 | 1231 | if isinstance(value, SyntaxError) \ |
|
1219 | 1232 | and isinstance(value.filename, py3compat.string_types) \ |
|
1220 | 1233 | and isinstance(value.lineno, int): |
|
1221 | 1234 | linecache.checkcache(value.filename) |
|
1222 | 1235 | newtext = ulinecache.getline(value.filename, value.lineno) |
|
1223 | 1236 | if newtext: |
|
1224 | 1237 | value.text = newtext |
|
1225 | 1238 | return super(SyntaxTB, self).structured_traceback(etype, value, elist, |
|
1226 | tb_offset=tb_offset, context=context) | |
|
1239 | tb_offset=tb_offset, context=context) | |
|
1227 | 1240 | |
|
1228 | 1241 | def clear_err_state(self): |
|
1229 | 1242 | """Return the current error state and clear it""" |
|
1230 | 1243 | e = self.last_syntax_error |
|
1231 | 1244 | self.last_syntax_error = None |
|
1232 | 1245 | return e |
|
1233 | 1246 | |
|
1234 | 1247 | def stb2text(self, stb): |
|
1235 | 1248 | """Convert a structured traceback (a list) to a string.""" |
|
1236 | 1249 | return ''.join(stb) |
|
1237 | 1250 | |
|
1238 | 1251 | |
|
1239 | 1252 | #---------------------------------------------------------------------------- |
|
1240 | 1253 | # module testing (minimal) |
|
1241 | 1254 | if __name__ == "__main__": |
|
1242 | 1255 | def spam(c, d_e): |
|
1243 | 1256 | (d, e) = d_e |
|
1244 | 1257 | x = c + d |
|
1245 | 1258 | y = c * d |
|
1246 | 1259 | foo(x, y) |
|
1247 | 1260 | |
|
1248 | 1261 | def foo(a, b, bar=1): |
|
1249 | 1262 | eggs(a, b + bar) |
|
1250 | 1263 | |
|
1251 | 1264 | def eggs(f, g, z=globals()): |
|
1252 | 1265 | h = f + g |
|
1253 | 1266 | i = f - g |
|
1254 | 1267 | return h / i |
|
1255 | 1268 | |
|
1256 | 1269 | print('') |
|
1257 | 1270 | print('*** Before ***') |
|
1258 | 1271 | try: |
|
1259 | 1272 | print(spam(1, (2, 3))) |
|
1260 | 1273 | except: |
|
1261 | 1274 | traceback.print_exc() |
|
1262 | 1275 | print('') |
|
1263 | 1276 | |
|
1264 | 1277 | handler = ColorTB() |
|
1265 | 1278 | print('*** ColorTB ***') |
|
1266 | 1279 | try: |
|
1267 | 1280 | print(spam(1, (2, 3))) |
|
1268 | 1281 | except: |
|
1269 | 1282 | handler(*sys.exc_info()) |
|
1270 | 1283 | print('') |
|
1271 | 1284 | |
|
1272 | 1285 | handler = VerboseTB() |
|
1273 | 1286 | print('*** VerboseTB ***') |
|
1274 | 1287 | try: |
|
1275 | 1288 | print(spam(1, (2, 3))) |
|
1276 | 1289 | except: |
|
1277 | 1290 | handler(*sys.exc_info()) |
|
1278 | 1291 | print('') |
|
1279 | 1292 |
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