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annotate roundup/cgi/cgitb.py @ 2467:76ead526113d

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client instances may be used as translation engines. any backend translator may be passed as constructor argument or via setTranslator() method. by default, templating.translationService is used. use this engine to translate client messages.
author Alexander Smishlajev <a1s@users.sourceforge.net>
date Tue, 15 Jun 2004 09:19:49 +0000
parents cafdf8b7cc69
children 7500a9bb8bf9
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 # $Id: cgitb.py,v 1.11 2004-06-09 09:20:01 a1s Exp $
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5
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6 """Extended CGI traceback handler by Ka-Ping Yee, <ping@lfw.org>.
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7 """
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8 __docformat__ = 'restructuredtext'
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9
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10 import sys, os, types, string, keyword, linecache, tokenize, inspect, cgi
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11 import pydoc, traceback
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12
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13 from roundup.cgi import templating
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14
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15 def _(msgid):
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16 return templating.translationService.gettext(msgid)
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17
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18 def breaker():
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19 return ('<body bgcolor="white">' +
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20 '<font color="white" size="-5"> > </font> ' +
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21 '</table>' * 5)
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22
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23 def niceDict(indent, dict):
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24 l = []
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25 for k,v in dict.items():
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26 l.append('<tr><td><strong>%s</strong></td><td>%s</td></tr>'%(k,
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27 cgi.escape(repr(v))))
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28 return '\n'.join(l)
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29
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30 def pt_html(context=5):
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31 esc = cgi.escape
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32 l = ['<h1>Templating Error</h1>',
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33 '<p><b>%s</b>: %s</p>'%(esc(str(sys.exc_type)),
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34 esc(str(sys.exc_value))),
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35 '<p class="help">Debugging information follows</p>',
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36 '<ol>',]
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37 from roundup.cgi.PageTemplates.Expressions import TraversalError
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38 t = inspect.trace(context)
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39 t.reverse()
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40 for frame, file, lnum, func, lines, index in t:
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41 args, varargs, varkw, locals = inspect.getargvalues(frame)
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42 if locals.has_key('__traceback_info__'):
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43 ti = locals['__traceback_info__']
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44 if isinstance(ti, TraversalError):
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45 s = []
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46 for name, info in ti.path:
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47 s.append('<li>"%s" (%s)</li>'%(name, esc(repr(info))))
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48 s = '\n'.join(s)
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49 l.append('<li>Looking for "%s", current path:<ol>%s</ol></li>'%(
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50 ti.name, s))
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51 else:
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52 l.append('<li>In %s</li>'%esc(str(ti)))
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53 if locals.has_key('__traceback_supplement__'):
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54 ts = locals['__traceback_supplement__']
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55 if len(ts) == 2:
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56 supp, context = ts
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57 s = 'A problem occurred in your template "%s".'%str(context.id)
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58 if context._v_errors:
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59 s = s + '<br>' + '<br>'.join(
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60 [esc(x) for x in context._v_errors])
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61 l.append('<li>%s</li>'%s)
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62 elif len(ts) == 3:
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63 supp, context, info = ts
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64 l.append('''
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65 <li>While evaluating the %r expression on line %d
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66 <table class="otherinfo" style="font-size: 90%%">
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67 <tr><th colspan="2" class="header">Current variables:</th></tr>
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68 %s
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69 %s
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70 </table></li>
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71 '''%(info, context.position[0], niceDict(' ', context.global_vars),
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72 niceDict(' ', context.local_vars)))
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73
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74 l.append('''
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75 </ol>
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76 <table style="font-size: 80%%; color: gray">
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77 <tr><th class="header" align="left">Full traceback:</th></tr>
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78 <tr><td><pre>%s</pre></td></tr>
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79 </table>'''%cgi.escape(''.join(traceback.format_exception(sys.exc_type,
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80 sys.exc_value, sys.exc_traceback))))
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81 l.append('<p>&nbsp;</p>')
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82 return '\n'.join(l)
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83
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84 def html(context=5):
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85 etype, evalue = sys.exc_type, sys.exc_value
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86 if type(etype) is types.ClassType:
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87 etype = etype.__name__
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88 pyver = 'Python ' + string.split(sys.version)[0] + '<br>' + sys.executable
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89 head = pydoc.html.heading(
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90 '<font size=+1><strong>%s</strong>: %s</font>'%(etype, evalue),
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91 '#ffffff', '#777777', pyver)
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92
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93 head = head + (_('<p>A problem occurred while running a Python script. '
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94 'Here is the sequence of function calls leading up to '
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95 'the error, with the most recent (innermost) call first. '
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96 'The exception attributes are:'))
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97
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98 indent = '<tt><small>%s</small>&nbsp;</tt>' % ('&nbsp;' * 5)
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99 traceback = []
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100 for frame, file, lnum, func, lines, index in inspect.trace(context):
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101 if file is None:
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102 link = '''&lt;file is None - probably inside <tt>eval</tt> or
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103 <tt>exec</tt>&gt;'''
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104 else:
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105 file = os.path.abspath(file)
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106 link = '<a href="file:%s">%s</a>' % (file, pydoc.html.escape(file))
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107 args, varargs, varkw, locals = inspect.getargvalues(frame)
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108 if func == '?':
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109 call = ''
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110 else:
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111 call = 'in <strong>%s</strong>' % func + inspect.formatargvalues(
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112 args, varargs, varkw, locals,
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113 formatvalue=lambda value: '=' + pydoc.html.repr(value))
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114
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115 level = '''
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116 <table width="100%%" bgcolor="#dddddd" cellspacing=0 cellpadding=2 border=0>
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117 <tr><td>%s %s</td></tr></table>''' % (link, call)
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118
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119 if index is None or file is None:
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120 traceback.append('<p>' + level)
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121 continue
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122
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123 # do a file inspection
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124 names = []
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125 def tokeneater(type, token, start, end, line, names=names):
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126 if type == tokenize.NAME and token not in keyword.kwlist:
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127 if token not in names:
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128 names.append(token)
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129 if type == tokenize.NEWLINE: raise IndexError
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130 def linereader(file=file, lnum=[lnum]):
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131 line = linecache.getline(file, lnum[0])
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132 lnum[0] = lnum[0] + 1
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133 return line
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134
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135 try:
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136 tokenize.tokenize(linereader, tokeneater)
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137 except IndexError:
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138 pass
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139 lvals = []
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140 for name in names:
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141 if name in frame.f_code.co_varnames:
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142 if locals.has_key(name):
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143 value = pydoc.html.repr(locals[name])
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144 else:
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145 value = _('<em>undefined</em>')
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146 name = '<strong>%s</strong>' % name
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147 else:
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148 if frame.f_globals.has_key(name):
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149 value = pydoc.html.repr(frame.f_globals[name])
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150 else:
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151 value = _('<em>undefined</em>')
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152 name = '<em>global</em> <strong>%s</strong>' % name
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153 lvals.append('%s&nbsp;= %s'%(name, value))
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154 if lvals:
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155 lvals = string.join(lvals, ', ')
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156 lvals = indent + '<small><font color="#909090">%s'\
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157 '</font></small><br>'%lvals
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158 else:
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159 lvals = ''
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160
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161 excerpt = []
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162 i = lnum - index
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163 for line in lines:
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164 number = '&nbsp;' * (5-len(str(i))) + str(i)
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165 number = '<small><font color="#909090">%s</font></small>' % number
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166 line = '<tt>%s&nbsp;%s</tt>' % (number, pydoc.html.preformat(line))
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167 if i == lnum:
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168 line = '''
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169 <table width="100%%" bgcolor="white" cellspacing=0 cellpadding=0 border=0>
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170 <tr><td>%s</td></tr></table>''' % line
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171 excerpt.append('\n' + line)
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172 if i == lnum:
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173 excerpt.append(lvals)
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174 i = i + 1
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175 traceback.append('<p>' + level + string.join(excerpt, '\n'))
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176
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177 traceback.reverse()
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178
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179 exception = '<p><strong>%s</strong>: %s' % (str(etype), str(evalue))
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180 attribs = []
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181 if type(evalue) is types.InstanceType:
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182 for name in dir(evalue):
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183 value = pydoc.html.repr(getattr(evalue, name))
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184 attribs.append('<br>%s%s&nbsp;= %s' % (indent, name, value))
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185
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186 return head + string.join(attribs) + string.join(traceback) + '<p>&nbsp;</p>'
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187
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188 def handler():
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189 print breaker()
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190 print html()
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191
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192 # vim: set filetype=python ts=4 sw=4 et si
Roundup Issue Tracker: http://roundup-tracker.org/