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annotate frontends/ZRoundup/ZRoundup.py @ 519:2dd8571ca738

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fixes to migration text
author Richard Jones <richard@users.sourceforge.net>
date Fri, 11 Jan 2002 03:34:52 +0000
parents 453096f811f0
children 14e94c28bdb0
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1 # Copyright (c) 2001 Bizar Software Pty Ltd (http://www.bizarsoftware.com.au/)
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2 # This module is free software, and you may redistribute it and/or modify
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3 # under the same terms as Python, so long as this copyright message and
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4 # disclaimer are retained in their original form.
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5 #
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6 # IN NO EVENT SHALL BIZAR SOFTWARE PTY LTD BE LIABLE TO ANY PARTY FOR
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7 # DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING
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8 # OUT OF THE USE OF THIS CODE, EVEN IF THE AUTHOR HAS BEEN ADVISED OF THE
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9 # POSSIBILITY OF SUCH DAMAGE.
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10 #
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11 # BIZAR SOFTWARE PTY LTD SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
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12 # BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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13 # FOR A PARTICULAR PURPOSE. THE CODE PROVIDED HEREUNDER IS ON AN "AS IS"
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14 # BASIS, AND THERE IS NO OBLIGATION WHATSOEVER TO PROVIDE MAINTENANCE,
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15 # SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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16 #
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17 # $Id: ZRoundup.py,v 1.4 2002-01-10 03:38:16 richard Exp $
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18 #
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19 ''' ZRoundup module - exposes the roundup web interface to Zope
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20
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21 This frontend works by providing a thin layer that sits between Zope and the
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22 regular CGI interface of roundup, providing the web frontend with the minimum
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23 of effort.
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24
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25 This means that the regular CGI interface does all authentication quite
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26 independently of Zope. The roundup code is kept in memory though, and it
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27 runs in the same server as all your other Zope stuff, so it does have _some_
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28 advantages over regular CGI :)
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29
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30 It also means that any requests which specify :filter, :columns or :sort
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31 _must_ be done using a GET, so that this interface can re-parse the
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32 QUERY_STRING. Zope interprets the ':' as a special character, and the special
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33 args are lost to it.
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34 '''
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35 from Globals import InitializeClass, HTMLFile
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36 from OFS.SimpleItem import Item
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37 from OFS.PropertyManager import PropertyManager
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38 from Acquisition import Implicit
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39 from Persistence import Persistent
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40 from AccessControl import ClassSecurityInfo
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41 from AccessControl import ModuleSecurityInfo
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42 modulesecurity = ModuleSecurityInfo()
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43
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44 import roundup.instance
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45 from roundup import cgi_client
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46
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47 modulesecurity.declareProtected('View management screens',
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48 'manage_addZRoundupForm')
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49 manage_addZRoundupForm = HTMLFile('dtml/manage_addZRoundupForm', globals())
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50
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51 modulesecurity.declareProtected('Add Z Roundups', 'manage_addZRoundup')
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52 def manage_addZRoundup(self, id, instance_home, REQUEST):
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53 """Add a ZRoundup product """
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54 # validate the instance_home
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55 roundup.instance.open(instance_home)
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56 self._setObject(id, ZRoundup(id, instance_home))
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57 return self.manage_main(self, REQUEST)
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58
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59 class RequestWrapper:
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60 '''Make the Zope RESPONSE look like a BaseHTTPServer
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61 '''
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62 def __init__(self, RESPONSE):
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63 self.RESPONSE = RESPONSE
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64 self.wfile = self.RESPONSE
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65 def send_response(self, status):
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66 self.RESPONSE.setStatus(status)
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67 def send_header(self, header, value):
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68 self.RESPONSE.addHeader(header, value)
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69 def end_headers(self):
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70 # not needed - the RESPONSE object handles this internally on write()
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71 pass
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72
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73 class FormItem:
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74 '''Make a Zope form item look like a cgi.py one
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75 '''
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76 def __init__(self, value):
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77 self.value = value
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78 if hasattr(self.value, 'filename'):
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79 self.filename = self.value.filename
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80 self.file = self.value
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81
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82 class FormWrapper:
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83 '''Make a Zope form dict look like a cgi.py one
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84 '''
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85 def __init__(self, form):
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86 self.form = form
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87 def __getitem__(self, item):
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88 return FormItem(self.form[item])
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89 def has_key(self, item):
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90 return self.form.has_key(item)
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91 def keys(self):
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92 return self.form.keys()
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93
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94 class ZRoundup(Item, PropertyManager, Implicit, Persistent):
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95 '''An instance of this class provides an interface between Zope and
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96 roundup for one roundup instance
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97 '''
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98 meta_type = 'Z Roundup'
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99 security = ClassSecurityInfo()
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100
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101 def __init__(self, id, instance_home):
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102 self.id = id
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103 self.instance_home = instance_home
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104
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105 # define the properties that define this object
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106 _properties = (
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107 {'id':'id', 'type': 'string', 'mode': 'w'},
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108 {'id':'instance_home', 'type': 'string', 'mode': 'w'},
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109 )
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110 property_extensible_schema__ = 0
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111
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112 # define the tabs for the management interface
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113 manage_options= PropertyManager.manage_options + (
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114 {'label': 'View', 'action':'index_html'},
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115 ) + Item.manage_options
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116
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117 icon = "misc_/ZRoundup/icon"
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118
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119 security.declarePrivate('_opendb')
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120 def _opendb(self):
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121 '''Open the roundup instance database for a transaction.
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122 '''
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123 instance = roundup.instance.open(self.instance_home)
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124 request = RequestWrapper(self.REQUEST['RESPONSE'])
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125 env = self.REQUEST.environ
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126 env['INSTANCE_NAME'] = self.id
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127 if env['REQUEST_METHOD'] == 'GET':
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128 # force roundup to re-parse the request because Zope fiddles
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129 # with it and we lose all the :filter, :columns, etc goodness
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130 form = None
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131 else:
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132 form = FormWrapper(self.REQUEST.form)
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133 return instance.Client(instance, request, env, form)
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134
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135 security.declareProtected('View', 'index_html')
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136 def index_html(self):
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137 '''Alias index_html to roundup's index
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138 '''
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139 client = self._opendb()
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140 # fake the path that roundup should use
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141 client.split_path = ['index']
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142 return client.main()
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143
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144 def __getitem__(self, item):
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145 '''All other URL accesses are passed throuh to roundup
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146 '''
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147 try:
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148 client = self._opendb()
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149 # fake the path that roundup should use
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150 client.split_path = [item]
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151 # and call roundup to do something
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152 client.main()
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153 return ''
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154 except cgi_client.NotFound:
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155 raise 'NotFound', self.REQUEST.URL
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156 pass
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157 except:
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158 import traceback
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159 traceback.print_exc()
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160 # all other exceptions in roundup are valid
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161 raise
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162 raise KeyError, item
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163
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164
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165 InitializeClass(ZRoundup)
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166 modulesecurity.apply(globals())
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167
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168
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169 #
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170 # $Log: not supported by cvs2svn $
506
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171 # Revision 1.3 2001/12/12 23:55:00 richard
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172 # Fixed some problems with user editing
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173 #
448
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174 # Revision 1.2 2001/12/12 23:33:58 richard
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175 # added some implementation notes
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176 #
447
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177 # Revision 1.1 2001/12/12 23:27:13 richard
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178 # Added a Zope frontend for roundup.
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179 #
446
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180 #
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181 #
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182 # vim: set filetype=python ts=4 sw=4 et si
Roundup Issue Tracker: http://roundup-tracker.org/