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annotate tests/test-demandimport.py @ 53040:cdd7bf612c7b stable tip

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bundle-spec: properly format boolean parameter (issue6960) This was breaking automatic clone bundle generation. This changeset fixes it and add a test to catch it in the future.
author Pierre-Yves David <pierre-yves.david@octobus.net>
date Tue, 11 Mar 2025 02:29:42 +0100
parents b2e90465daf6
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 from mercurial import demandimport
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2
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3 demandimport.enable()
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4
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5 import os
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6 import subprocess
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7 import sys
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8 import types
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9
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10 # Don't import pycompat because it has too many side-effects.
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11 ispy311 = (sys.version_info.major, sys.version_info.minor) >= (3, 11)
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12
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13 # Only run if demandimport is allowed
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14 if subprocess.call(
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15 [os.environ['PYTHON'], '%s/hghave' % os.environ['TESTDIR'], 'demandimport']
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16 ):
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17 sys.exit(80)
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18
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19 # We rely on assert, which gets optimized out.
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20 if sys.flags.optimize:
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21 sys.exit(80)
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22
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23 # The demand importer doesn't work on Python 3.5.
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24 if sys.version_info[0:2] == (3, 5):
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25 sys.exit(80)
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26
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27 from importlib.util import _LazyModule
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28
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29 try:
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30 from importlib.util import _Module as moduletype
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31 except ImportError:
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32 moduletype = types.ModuleType
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34 import re
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35
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36 rsub = re.sub
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37
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38
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39 def f(obj):
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40 l = repr(obj)
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41 l = rsub("0x[0-9a-fA-F]+", "0x?", l)
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42 l = rsub("from '.*'", "from '?'", l)
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43 l = rsub("'<[a-z]*>'", "'<whatever>'", l)
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44 return l
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46
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47 demandimport.disable()
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48 os.environ['HGDEMANDIMPORT'] = 'disable'
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49 # this enable call should not actually enable demandimport!
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50 demandimport.enable()
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51 from mercurial import node
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52
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53 # We use assert instead of a unittest test case because having imports inside
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54 # functions changes behavior of the demand importer.
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55 assert not isinstance(node, _LazyModule)
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56
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57 # now enable it for real
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58 del os.environ['HGDEMANDIMPORT']
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59 demandimport.enable()
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60
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61 # Test access to special attributes through demandmod proxy
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62 assert 'mercurial.error' not in sys.modules
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63 from mercurial import error as errorproxy
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64
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65 assert isinstance(errorproxy, _LazyModule)
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66 assert f(errorproxy) == "<module 'mercurial.error' from '?'>", f(errorproxy)
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67
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68 doc = ' '.join(errorproxy.__doc__.split()[:3])
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69 assert doc == 'Mercurial exceptions. This', doc
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70 assert errorproxy.__name__ == 'mercurial.error', errorproxy.__name__
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71
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72 # __name__ must be accessible via __dict__ so the relative imports can be
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73 # resolved
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74 name = errorproxy.__dict__['__name__']
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75 assert name == 'mercurial.error', name
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76
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77 assert not isinstance(errorproxy, _LazyModule)
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78 assert f(errorproxy) == "<module 'mercurial.error' from '?'>", f(errorproxy)
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79
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80 import os
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81
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82 assert not isinstance(os, _LazyModule)
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83 if ispy311:
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84 assert f(os) == "<module 'os' (frozen)>", f(os)
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85 else:
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86 assert f(os) == "<module 'os' from '?'>", f(os)
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87
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88 assert f(os.system) == '<built-in function system>', f(os.system)
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89 if ispy311:
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90 assert f(os) == "<module 'os' (frozen)>", f(os)
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91 else:
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92 assert f(os) == "<module 'os' from '?'>", f(os)
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93
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94 assert 'mercurial.utils.procutil' not in sys.modules
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95 from mercurial.utils import procutil
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96
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97 assert isinstance(procutil, _LazyModule)
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98 assert f(procutil) == "<module 'mercurial.utils.procutil' from '?'>", f(
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99 procutil
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100 )
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101
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102 assert f(procutil.system) == '<function system at 0x?>', f(procutil.system)
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103 assert procutil.__class__ == moduletype, procutil.__class__
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104 assert f(procutil) == "<module 'mercurial.utils.procutil' from '?'>", f(
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105 procutil
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106 )
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107 assert f(procutil.system) == '<function system at 0x?>', f(procutil.system)
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108
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109 assert 'mercurial.hgweb' not in sys.modules
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110 from mercurial import hgweb
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111
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112 assert isinstance(hgweb, _LazyModule)
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113 assert f(hgweb) == "<module 'mercurial.hgweb' from '?'>", f(hgweb)
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114 assert isinstance(hgweb.hgweb_mod, _LazyModule)
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115 assert f(hgweb.hgweb_mod) == "<module 'mercurial.hgweb.hgweb_mod' from '?'>", f(
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116 hgweb.hgweb_mod
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117 )
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118
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119 assert f(hgweb) == "<module 'mercurial.hgweb' from '?'>", f(hgweb)
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120
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121 import re as fred
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122
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123 assert not isinstance(fred, _LazyModule)
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124 assert f(fred) == "<module 're' from '?'>"
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125
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126 import re as remod
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127
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128 assert not isinstance(remod, _LazyModule)
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129 assert f(remod) == "<module 're' from '?'>"
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130
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131 import sys as re
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132
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133 assert not isinstance(re, _LazyModule)
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134 assert f(re) == "<module 'sys' (built-in)>"
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135
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136 assert not isinstance(fred, _LazyModule)
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137 assert f(fred) == "<module 're' from '?'>", f(fred)
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138
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139 assert f(fred.sub) == '<function sub at 0x?>', f(fred.sub)
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140
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141 assert not isinstance(fred, _LazyModule)
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142 assert f(fred) == "<module 're' from '?'>", f(fred)
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143
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144 remod.escape # use remod
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145 assert f(remod) == "<module 're' from '?'>", f(remod)
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146
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147 assert not isinstance(re, _LazyModule)
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148 assert f(re) == "<module 'sys' (built-in)>"
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149 assert f(type(re.stderr)) == "<class '_io.TextIOWrapper'>", f(type(re.stderr))
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150 assert f(re) == "<module 'sys' (built-in)>"
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151
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152 assert 'wsgiref' not in sys.modules
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153 import wsgiref
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154
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155 assert isinstance(wsgiref, _LazyModule)
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156 assert f(wsgiref) == "<module 'wsgiref' from '?'>"
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157
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158 try:
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159 from wsgiref import unknownattr
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160
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161 assert False, (
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162 'no demandmod should be created for attribute of non-package '
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163 'module:\nwsgiref.unknownattr = %s' % f(unknownattr)
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164 )
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165 except ImportError as inst:
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166 assert rsub(r"'", '', str(inst)).startswith(
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167 'cannot import name unknownattr'
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168 )
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169
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170 # Unlike the import statement, __import__() function should not raise
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171 # ImportError even if fromlist has an unknown item
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172 # (see Python/import.c:import_module_level() and ensure_fromlist())
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173 assert 'ftplib' not in sys.modules
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174 zipfileimp = __import__('ftplib', globals(), locals(), ['unknownattr'])
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175 assert f(zipfileimp) == "<module 'ftplib' from '?'>", f(zipfileimp)
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176 assert not hasattr(zipfileimp, 'unknownattr')
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177
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178
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179 # test deactivation for issue6725
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180 del sys.modules['wsgiref']
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181 with demandimport.deactivated():
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182 import wsgiref
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183 assert wsgiref.__loader__ == wsgiref.__spec__.loader
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184 assert wsgiref.__loader__.get_resource_reader