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annotate roundup/scripts/roundup_xmlrpc_server.py @ 5378:35ea9b1efc14

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Python 3 preparation: "raise" syntax. Changing "raise Exception, value" to "raise Exception(value)". Tool-assisted patch. Particular cases to check carefully are the one place in frontends/ZRoundup/ZRoundup.py where a string exception needed to be fixed, and the one in roundup/cgi/client.py involving raising an exception with a traceback (requires three-argument form of raise in Python 2, which as I understand it requires exec() to avoid a Python 3 syntax error).
author Joseph Myers <jsm@polyomino.org.uk>
date Tue, 24 Jul 2018 21:39:58 +0000
parents 64b05e24dbd8
children 88dbacd11cd1
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 #! /usr/bin/env python
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2 #
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3 # Copyright (C) 2007 Stefan Seefeld
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4 # All rights reserved.
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5 # For license terms see the file COPYING.txt.
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6 #
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7
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8
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9 # --- patch sys.path to make sure 'import roundup' finds correct version
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10 from __future__ import print_function
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11 import sys
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12 import os.path as osp
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13
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14 thisdir = osp.dirname(osp.abspath(__file__))
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15 rootdir = osp.dirname(osp.dirname(thisdir))
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16 if (osp.exists(thisdir + '/__init__.py') and
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17 osp.exists(rootdir + '/roundup/__init__.py')):
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18 # the script is located inside roundup source code
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19 sys.path.insert(0, rootdir)
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20 # --/
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21
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22
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23 import base64, getopt, os, sys, socket, urllib
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24 from roundup.xmlrpc import translate
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25 from roundup.xmlrpc import RoundupInstance
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26 import roundup.instance
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27 from roundup.instance import TrackerError
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28 from roundup.cgi.exceptions import Unauthorised
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29 from SimpleXMLRPCServer import SimpleXMLRPCServer
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30 from SimpleXMLRPCServer import SimpleXMLRPCRequestHandler
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31
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32
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33 class RequestHandler(SimpleXMLRPCRequestHandler):
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34 """A SimpleXMLRPCRequestHandler with support for basic
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35 HTTP Authentication."""
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36
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37 TRACKER_HOMES = {}
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38 TRACKERS = {}
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39
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40 def is_rpc_path_valid(self):
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41 path = self.path.split('/')
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42 name = urllib.unquote(path[1]).lower()
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43 return name in self.TRACKER_HOMES
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44
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45 def get_tracker(self, name):
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46 """Return a tracker instance for given tracker name."""
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47
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48 if name in self.TRACKERS:
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49 return self.TRACKERS[name]
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50
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51 if name not in self.TRACKER_HOMES:
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52 raise Exception('No such tracker "%s"'%name)
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53 tracker_home = self.TRACKER_HOMES[name]
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54 tracker = roundup.instance.open(tracker_home)
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55 self.TRACKERS[name] = tracker
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56 return tracker
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57
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58
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59 def authenticate(self, tracker):
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60
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61
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62 # Try to extract username and password from HTTP Authentication.
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63 username, password = None, None
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64 authorization = self.headers.get('authorization', ' ')
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65 scheme, challenge = authorization.split(' ', 1)
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66
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67 if scheme.lower() == 'basic':
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68 decoded = base64.decodestring(challenge)
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69 if ':' in decoded:
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70 username, password = decoded.split(':')
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71 else:
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72 username = decoded
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73 if not username:
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74 username = 'anonymous'
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75 db = tracker.open('admin')
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76 try:
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77 userid = db.user.lookup(username)
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78 except KeyError: # No such user
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79 db.close()
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80 raise Unauthorised('Invalid user')
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81 stored = db.user.get(userid, 'password')
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82 if stored != password:
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83 # Wrong password
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84 db.close()
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85 raise Unauthorised('Invalid user')
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86 db.setCurrentUser(username)
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87 return db
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88
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89
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90 def do_POST(self):
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91 """Extract username and password from authorization header."""
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92
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93 db = None
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94 try:
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95 path = self.path.split('/')
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96 tracker_name = urllib.unquote(path[1]).lower()
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97 tracker = self.get_tracker(tracker_name)
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98 db = self.authenticate(tracker)
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99
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100 instance = RoundupInstance(db, tracker.actions, None)
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101 self.server.register_instance(instance)
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102 SimpleXMLRPCRequestHandler.do_POST(self)
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103 except Unauthorised as message:
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104 self.send_error(403, '%s (%s)'%(self.path, message))
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105 except:
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106 if db:
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107 db.close()
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108 exc, val, tb = sys.exc_info()
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109 print(exc, val, tb)
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110 raise
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111 if db:
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112 db.close()
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113
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114
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115 class Server(SimpleXMLRPCServer):
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116
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117 def _dispatch(self, method, params):
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118
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119 retn = SimpleXMLRPCServer._dispatch(self, method, params)
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120 retn = translate(retn)
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121 return retn
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122
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123
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124 def usage():
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125 print("""Usage: %s: [options] [name=tracker home]+
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126
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127 Options:
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128 -e, --encoding -- specify the encoding to use
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129 -V -- be verbose when importing
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130 -p, --port <port> -- port to listen on
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131
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132 """%sys.argv[0])
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133
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134 def run():
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135
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136 try:
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137 opts, args = getopt.getopt(sys.argv[1:],
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138 'e:i:p:V', ['encoding=', 'port='])
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139 except getopt.GetoptError as e:
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140 usage()
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141 return 1
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142
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143 verbose = False
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144 port = 8000
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145 encoding = None
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146
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147 for opt, arg in opts:
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148 if opt == '-V':
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149 verbose = True
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150 elif opt in ['-p', '--port']:
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151 port = int(arg)
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152 elif opt in ['-e', '--encoding']:
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153 encoding = encoding
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154
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155 tracker_homes = {}
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156 for arg in args:
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157 try:
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158 name, home = arg.split('=', 1)
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159 # Validate the argument
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160 tracker = roundup.instance.open(home)
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161 except ValueError:
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162 print('Instances must be name=home')
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163 sys.exit(-1)
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164 except TrackerError:
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165 print('Tracker home does not exist.')
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166 sys.exit(-1)
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167
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168 tracker_homes[name] = home
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169
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170 RequestHandler.TRACKER_HOMES=tracker_homes
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171
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172 if sys.version_info[0:2] < (2,5):
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173 if encoding:
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174 print('encodings not supported with python < 2.5')
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175 sys.exit(-1)
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176 server = Server(('', port), RequestHandler)
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177 else:
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178 server = Server(('', port), RequestHandler,
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179 allow_none=True, encoding=encoding)
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180
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181 # Go into the main listener loop
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182 print('Roundup XMLRPC server started on %s:%d'
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183 % (socket.gethostname(), port))
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184 try:
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185 server.serve_forever()
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186 except KeyboardInterrupt:
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187 print('Keyboard Interrupt: exiting')
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188
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189 if __name__ == '__main__':
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190 run()
Roundup Issue Tracker: http://roundup-tracker.org/