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annotate roundup/cgi/cgitb.py @ 8580:5cba36e42b8f

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chore: refactor replace urlparse with urlsplit and use urllib_ Python docs recommend use of urlsplit() rather than urlparse(). urlsplit() is a little faster and doesn't try to split the path into path and params using the rules from an obsolete RFC. actions.py, demo.py, rest.py, client.py Replace urlparse() with urlsplit() actions.py urlsplit() produces a named tuple with one fewer elements (no .param). So fixup calls to urlunparse() so they have the proper number of elements in the tuple. also merge url filtering for param and path. demo.py, rest.py: Replace imports from urlparse/urllib.parse with roundup.anypy.urllib_ so we use the same interface throughout the code base. test/test_cgi.py: Since actions.py filtering for invali urls not split by path/param, fix tests for improperly quoted url's.
author John Rouillard <rouilj@ieee.org>
date Sun, 19 Apr 2026 22:58:59 -0400
parents 9c3ec0a5c7fc
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #
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2 # This module was written by Ka-Ping Yee, <ping@lfw.org>.
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3 #
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4
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5 """Extended CGI traceback handler by Ka-Ping Yee, <ping@lfw.org>.
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6 """
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7 __docformat__ = 'restructuredtext'
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8
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9 import inspect
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10 import keyword
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11 import linecache
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12 import os
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13 import pydoc
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14 import sys
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15 import tokenize
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16 import traceback
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17
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18 from roundup.anypy.html import html_escape
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19 from roundup.anypy.strings import s2b
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20 from roundup.cgi import TranslationService
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23 def get_translator(i18n=None):
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24 """Return message translation function (gettext)
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25
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26 Parameters:
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27 i18n - translation service, such as roundup.i18n module
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28 or TranslationService object.
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29
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30 Return ``gettext`` attribute of the ``i18n`` object, if available
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31 (must be a message translation function with one argument).
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32 If ``gettext`` cannot be obtained from ``i18n``, take default
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33 TranslationService.
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34
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35 """
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36 try:
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37 return i18n.gettext
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38 except AttributeError:
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39 return TranslationService.get_translation().gettext
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40
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41
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42 def breaker():
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43 return ('<body bgcolor="white">' +
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44 '<font color="white" size="-5"> > </font> ' +
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45 '</table>' * 5)
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46
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47
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48 def niceDict(indent, dict):
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49 l = []
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50 for k in sorted(dict):
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51 v = dict[k]
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52 l.append('<tr><td><strong>%s</strong></td><td>%s</td></tr>' % (
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53 k, html_escape(repr(v))))
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54 return '\n'.join(l)
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55
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56
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57 def pt_html(context=5, i18n=None):
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58 _ = get_translator(i18n)
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59 esc = html_escape
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60 exc_info = [esc(str(value)) for value in sys.exc_info()[:2]]
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61 l = [_('<h1>Templating Error</h1>\n'
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62 '<p><b>%(exc_type)s</b>: %(exc_value)s</p>\n'
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63 '<p class="help">Debugging information follows</p>'
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64 ) % {'exc_type': exc_info[0], 'exc_value': exc_info[1]},
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65 '<ol>', ]
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66 from roundup.cgi.PageTemplates.Expressions import TraversalError
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67 t = inspect.trace(context)
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68 t.reverse()
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69 for frame, _file, _lnum, _func, _lines, _index in t:
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70 args, varargs, varkw, locals = inspect.getargvalues(frame)
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71 if '__traceback_info__' in locals:
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72 ti = locals['__traceback_info__']
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73 if isinstance(ti, TraversalError):
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74 s = []
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75 for name, info in ti.path:
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76 s.append(_('<li>"%(name)s" (%(info)s)</li>')
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77 % {'name': name, 'info': esc(repr(info))})
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78 s = '\n'.join(s)
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79 l.append(_(
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80 '<li>Looking for "%(name)s", '
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81 'current path:<ol>%(path)s</ol></li>'
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82 ) % {'name': ti.name, 'path': s})
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83 else:
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84 l.append(_('<li>In %s</li>') % esc(str(ti)))
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85 if '__traceback_supplement__' in locals:
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86 ts = locals['__traceback_supplement__']
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87 if len(ts) == 2:
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88 supp, context = ts
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89 s = _('A problem occurred in your template "%s".') \
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90 % str(context.id)
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91 if context._v_errors:
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92 s = s + '<br>' + '<br>'.join(
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93 [esc(x) for x in context._v_errors])
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94 l.append('<li>%s</li>' % s)
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95 elif len(ts) == 3:
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96 supp, context, info = ts
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97 l.append(_('''
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98 <li>While evaluating the %(info)r expression on line %(line)d
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99 <table class="otherinfo" style="font-size: 90%%">
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100 <tr><th colspan="2" class="header">Current variables:</th></tr>
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101 %(globals)s
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102 %(locals)s
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103 </table></li>
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104 ''') % {
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105 'info': info,
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106 'line': context.position[0] or -1,
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107 'globals': niceDict(' ', context.global_vars),
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108 'locals': niceDict(' ', context.local_vars)
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109 })
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110
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111 l.append('''
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112 </ol>
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113 <table style="font-size: 80%%; color: gray">
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114 <tr><th class="header" align="left">%s</th></tr>
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115 <tr><td><pre>%s</pre></td></tr>
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116 </table>''' % (_('Full traceback:'), html_escape(''.join(
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117 traceback.format_exception(*sys.exc_info())
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118 ))))
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119 l.append('<p>&nbsp;</p>')
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120 return '\n'.join(l)
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121
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122
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123 def html(context=5, i18n=None):
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124 _ = get_translator(i18n)
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125 etype, evalue = sys.exc_info()[0], sys.exc_info()[1]
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126 if type(etype) is type:
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127 etype = etype.__name__
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128 pyver = 'Python ' + sys.version.split()[0] + '<br>' + sys.executable
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129
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130 if sys.version_info[0:2] >= (3,11):
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131 head = pydoc.html.heading(
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132 _('<font size=+1><strong>%(exc_type)s</strong>: '
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133 '%(exc_value)s</font>')
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134 % {'exc_type': etype, 'exc_value': evalue}, pyver)
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135 else:
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136 head = pydoc.html.heading(
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137 _('<font size=+1><strong>%(exc_type)s</strong>: '
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138 '%(exc_value)s</font>')
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139 % {'exc_type': etype, 'exc_value': evalue},
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140 '#ffffff', '#777777', pyver)
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141
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142 head = head + (_('<p>A problem occurred while running a Python script. '
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143 'Here is the sequence of function calls leading up to '
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144 'the error, with the most recent (innermost) call first. '
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145 'The exception attributes are:'))
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146
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147 indent = '<tt><small>%s</small>&nbsp;</tt>' % ('&nbsp;' * 5)
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148 traceback = []
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149 for frame, file, lnum, func, lines, index in inspect.trace(context):
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150 if file is None:
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151 link = _("&lt;file is None - probably inside <tt>eval</tt> "
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152 "or <tt>exec</tt>&gt;")
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153 else:
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154 file = os.path.abspath(file)
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155 link = '<a href="file:%s">%s</a>' % (file, pydoc.html.escape(file))
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156 args, varargs, varkw, locals = inspect.getargvalues(frame)
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157 if func == '?':
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158 call = ''
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159 else:
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160 call = _('in <strong>%s</strong>') % \
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161 func + inspect.formatargvalues(
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162 args, varargs, varkw, locals,
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163 formatvalue=lambda value: '=' + pydoc.html.repr(value))
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164
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165 level = '''
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166 <table width="100%%" bgcolor="#dddddd" cellspacing=0 cellpadding=2 border=0>
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167 <tr><td>%s %s</td></tr></table>''' % (link, call)
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168
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169 if index is None or file is None:
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170 traceback.append('<p>' + level)
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171 continue
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172
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173 # do a file inspection
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174 names = []
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175
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176 def tokeneater(type, token, start, end, line, names=names):
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177 if type == tokenize.NAME and token not in keyword.kwlist:
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178 if token not in names:
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179 names.append(token)
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180 if type == tokenize.NEWLINE: raise IndexError # noqa: E701
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181
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182 def linereader(file=file, lnum=[lnum]):
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183 line = s2b(linecache.getline(file, lnum[0]))
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184 lnum[0] = lnum[0] + 1
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185 return line
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186
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187 # The interface that is tokenize.tokenize in Python 3 is
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188 # called tokenize.generate_tokens in Python 2. However,
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189 # Python 2 has tokenize.tokenize with a different interface,
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190 # and Python 3 has an undocumented generate_tokens function,
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191 # also with a different interface, so a version check is
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192 # needed instead of checking for which functions exist.
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193 if sys.version_info[0] > 2:
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194 tokenize_fn = tokenize.tokenize
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195 else:
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196 tokenize_fn = tokenize.generate_tokens
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197 try:
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198 for t in tokenize_fn(linereader):
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199 tokeneater(*t)
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200 except IndexError:
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201 pass
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202 lvals = []
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203 for name in names:
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204 if name in frame.f_code.co_varnames:
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205 if name in locals:
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206 value = pydoc.html.repr(locals[name])
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207 else:
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208 value = _('<em>undefined</em>')
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209 name = '<strong>%s</strong>' % name
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210 else:
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211 if name in frame.f_globals:
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212 value = pydoc.html.repr(frame.f_globals[name])
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213 else:
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214 value = _('<em>undefined</em>')
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215 name = '<em>global</em> <strong>%s</strong>' % name
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216 lvals.append('%s&nbsp;= %s' % (name, value))
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217 if lvals:
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218 lvals = ', '.join(lvals)
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219 lvals = indent + '<small><font color="#909090">%s'\
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220 '</font></small><br>' % lvals
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221 else:
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222 lvals = ''
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223
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224 excerpt = []
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225 i = lnum - index
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226 for line in lines:
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227 number = '&nbsp;' * (5-len(str(i))) + str(i)
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228 number = '<small><font color="#909090">%s</font></small>' % number
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229 line = '<tt>%s&nbsp;%s</tt>' % (number, pydoc.html.preformat(line))
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230 if i == lnum:
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231 line = '''
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232 <table width="100%%" bgcolor="white" cellspacing=0 cellpadding=0 border=0>
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233 <tr><td>%s</td></tr></table>''' % line
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234 excerpt.append('\n' + line)
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235 if i == lnum:
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236 excerpt.append(lvals)
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237 i = i + 1
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238 traceback.append('<p>' + level + '\n'.join(excerpt))
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239
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240 traceback.reverse()
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241
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242 exception = '<p><strong>%s</strong>: %s' % (str(etype), str(evalue))
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243 attribs = []
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244 for name in dir(evalue):
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245 value = pydoc.html.repr(getattr(evalue, name))
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246 attribs.append('<br>%s%s&nbsp;= %s' % (indent, name, value))
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247
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248 return head + ' '.join(attribs) + ' '.join(traceback) + '<p>&nbsp;</p>'
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249
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250
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251 def handler():
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252 print(breaker())
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253 print(html())
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254
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255 # vim: set filetype=python ts=4 sw=4 et si :
Roundup Issue Tracker: http://roundup-tracker.org/