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annotate roundup/cgi/cgitb.py @ 1066:cf22c87d6fce

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tweak
author Richard Jones <richard@users.sourceforge.net>
date Fri, 06 Sep 2002 07:23:29 +0000
parents 0f9aa62917bd
children 04b44df7af1d
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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 1.3 2002-09-06 07:23:29 richard Exp $
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5
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6 __doc__ = """
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7 Extended CGI traceback handler by Ka-Ping Yee, <ping@lfw.org>.
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8 """
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9
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10 import sys, os, types, string, keyword, linecache, tokenize, inspect, pydoc
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11
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12 from roundup.i18n import _
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13
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14 def breaker():
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15 return ('<body bgcolor="white">' +
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16 '<font color="white" size="-5"> > </font> ' +
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17 '</table>' * 5)
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18
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19 def niceDict(indent, dict):
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20 l = []
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21 for k,v in dict.items():
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22 l.append('%s%s: %r'%(indent,k,v))
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23 return '\n'.join(l)
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24
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25 def pt_html(context=5):
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26 import cgi
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27 etype, evalue = sys.exc_type, sys.exc_value
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28 if type(etype) is types.ClassType:
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29 etype = etype.__name__
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30 pyver = 'Python ' + string.split(sys.version)[0] + '<br>' + sys.executable
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31 head = pydoc.html.heading(
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32 '<font size=+1><strong>%s</strong>: %s</font>'%(etype, evalue),
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33 '#ffffff', '#777777', pyver)
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34
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35 head = head + _('<p>A problem occurred in your template</p><pre>')
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36
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37 l = []
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38 for frame, file, lnum, func, lines, index in inspect.trace(context):
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39 args, varargs, varkw, locals = inspect.getargvalues(frame)
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40 if locals.has_key('__traceback_info__'):
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41 ti = locals['__traceback_info__']
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42 l.append(str(ti))
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43 if locals.has_key('__traceback_supplement__'):
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44 ts = locals['__traceback_supplement__']
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45 if len(ts) == 2:
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46 supp, context = ts
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47 l.append('in template %r'%context.id)
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48 elif len(ts) == 3:
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49 supp, context, info = ts
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50 l.append('in expression %r\n current variables:\n%s\n%s\n'%(info,
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51 niceDict(' ', context.global_vars),
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52 niceDict(' ', context.local_vars)))
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53 # context._scope_stack))
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54 return head + cgi.escape('\n'.join(l)) + '</pre><p>&nbsp;</p>'
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55
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56 def html(context=5):
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57 etype, evalue = sys.exc_type, sys.exc_value
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58 if type(etype) is types.ClassType:
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59 etype = etype.__name__
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60 pyver = 'Python ' + string.split(sys.version)[0] + '<br>' + sys.executable
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61 head = pydoc.html.heading(
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62 '<font size=+1><strong>%s</strong>: %s</font>'%(etype, evalue),
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63 '#ffffff', '#777777', pyver)
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64
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65 head = head + (_('<p>A problem occurred while running a Python script. '
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66 'Here is the sequence of function calls leading up to '
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67 'the error, with the most recent (innermost) call first. '
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68 'The exception attributes are:'))
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69
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70 indent = '<tt><small>%s</small>&nbsp;</tt>' % ('&nbsp;' * 5)
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71 traceback = []
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72 for frame, file, lnum, func, lines, index in inspect.trace(context):
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73 if file is None:
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74 link = '''&lt;file is None - probably inside <tt>eval</tt> or
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75 <tt>exec</tt>&gt;'''
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76 else:
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77 file = os.path.abspath(file)
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78 link = '<a href="file:%s">%s</a>' % (file, pydoc.html.escape(file))
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79 args, varargs, varkw, locals = inspect.getargvalues(frame)
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80 if func == '?':
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81 call = ''
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82 else:
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83 call = 'in <strong>%s</strong>' % func + inspect.formatargvalues(
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84 args, varargs, varkw, locals,
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85 formatvalue=lambda value: '=' + pydoc.html.repr(value))
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86
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87 level = '''
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88 <table width="100%%" bgcolor="#dddddd" cellspacing=0 cellpadding=2 border=0>
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89 <tr><td>%s %s</td></tr></table>''' % (link, call)
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90
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91 if index is None or file is None:
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92 traceback.append('<p>' + level)
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93 continue
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94
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95 # do a file inspection
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96 names = []
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97 def tokeneater(type, token, start, end, line, names=names):
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98 if type == tokenize.NAME and token not in keyword.kwlist:
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99 if token not in names:
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100 names.append(token)
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101 if type == tokenize.NEWLINE: raise IndexError
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102 def linereader(file=file, lnum=[lnum]):
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103 line = linecache.getline(file, lnum[0])
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104 lnum[0] = lnum[0] + 1
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105 return line
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106
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107 try:
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108 tokenize.tokenize(linereader, tokeneater)
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109 except IndexError:
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110 pass
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111 lvals = []
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112 for name in names:
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113 if name in frame.f_code.co_varnames:
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114 if locals.has_key(name):
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115 value = pydoc.html.repr(locals[name])
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116 else:
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117 value = _('<em>undefined</em>')
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118 name = '<strong>%s</strong>' % name
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119 else:
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120 if frame.f_globals.has_key(name):
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121 value = pydoc.html.repr(frame.f_globals[name])
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122 else:
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123 value = _('<em>undefined</em>')
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124 name = '<em>global</em> <strong>%s</strong>' % name
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125 lvals.append('%s&nbsp;= %s'%(name, value))
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126 if lvals:
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127 lvals = string.join(lvals, ', ')
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128 lvals = indent + '<small><font color="#909090">%s'\
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129 '</font></small><br>'%lvals
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130 else:
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131 lvals = ''
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132
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133 excerpt = []
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134 i = lnum - index
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135 for line in lines:
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136 number = '&nbsp;' * (5-len(str(i))) + str(i)
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137 number = '<small><font color="#909090">%s</font></small>' % number
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138 line = '<tt>%s&nbsp;%s</tt>' % (number, pydoc.html.preformat(line))
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139 if i == lnum:
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140 line = '''
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141 <table width="100%%" bgcolor="#white" cellspacing=0 cellpadding=0 border=0>
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142 <tr><td>%s</td></tr></table>''' % line
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143 excerpt.append('\n' + line)
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144 if i == lnum:
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145 excerpt.append(lvals)
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146 i = i + 1
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147 traceback.append('<p>' + level + string.join(excerpt, '\n'))
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148
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149 traceback.reverse()
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150
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151 exception = '<p><strong>%s</strong>: %s' % (str(etype), str(evalue))
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152 attribs = []
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153 if type(evalue) is types.InstanceType:
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154 for name in dir(evalue):
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155 value = pydoc.html.repr(getattr(evalue, name))
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156 attribs.append('<br>%s%s&nbsp;= %s' % (indent, name, value))
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157
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158 return head + string.join(attribs) + string.join(traceback) + '<p>&nbsp;</p>'
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159
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160 def handler():
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161 print breaker()
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162 print html()
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163
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164 #
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165 # $Log: not supported by cvs2svn $
1066
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166 # Revision 1.2 2002/09/06 07:21:31 richard
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167 # much nicer error messages when there's a templating error
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168 #
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169 # Revision 1.1 2002/08/30 08:28:44 richard
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170 # New CGI interface support
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171 #
985
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172 # Revision 1.10 2002/01/16 04:49:45 richard
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173 # Handle a special case that the CGI interface tickles. I need to check if
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174 # this needs fixing in python's core.
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175 #
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176 # Revision 1.9 2002/01/08 11:56:24 richard
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177 # missed an import _
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178 #
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179 # Revision 1.8 2002/01/05 02:22:32 richard
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180 # i18n'ification
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181 #
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182 # Revision 1.7 2001/11/22 15:46:42 jhermann
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183 # Added module docstrings to all modules.
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184 #
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185 # Revision 1.6 2001/09/29 13:27:00 richard
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186 # CGI interfaces now spit up a top-level index of all the instances they can
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187 # serve.
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188 #
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189 # Revision 1.5 2001/08/07 00:24:42 richard
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190 # stupid typo
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191 #
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192 # Revision 1.4 2001/08/07 00:15:51 richard
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193 # Added the copyright/license notice to (nearly) all files at request of
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194 # Bizar Software.
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195 #
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196 # Revision 1.3 2001/07/29 07:01:39 richard
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197 # Added vim command to all source so that we don't get no steenkin' tabs :)
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198 #
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199 # Revision 1.2 2001/07/22 12:09:32 richard
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200 # Final commit of Grande Splite
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201 #
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202 # Revision 1.1 2001/07/22 11:58:35 richard
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203 # More Grande Splite
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204 #
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205 #
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206 # vim: set filetype=python ts=4 sw=4 et si
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