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annotate lib/python3.8/site-packages/setuptools/command/develop.py @ 0:9e54283cc701 draft

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"planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
author guerler
date Mon, 27 Jul 2020 03:47:31 -0400
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1 from distutils.util import convert_path
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2 from distutils import log
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3 from distutils.errors import DistutilsError, DistutilsOptionError
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4 import os
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5 import glob
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6 import io
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7
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8 from setuptools.extern import six
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9
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10 import pkg_resources
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11 from setuptools.command.easy_install import easy_install
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12 from setuptools import namespaces
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13 import setuptools
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14
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15 __metaclass__ = type
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16
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17
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18 class develop(namespaces.DevelopInstaller, easy_install):
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19 """Set up package for development"""
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20
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21 description = "install package in 'development mode'"
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22
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23 user_options = easy_install.user_options + [
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24 ("uninstall", "u", "Uninstall this source package"),
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25 ("egg-path=", None, "Set the path to be used in the .egg-link file"),
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26 ]
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27
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28 boolean_options = easy_install.boolean_options + ['uninstall']
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29
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30 command_consumes_arguments = False # override base
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31
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32 def run(self):
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33 if self.uninstall:
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34 self.multi_version = True
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35 self.uninstall_link()
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36 self.uninstall_namespaces()
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37 else:
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38 self.install_for_development()
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39 self.warn_deprecated_options()
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40
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41 def initialize_options(self):
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42 self.uninstall = None
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43 self.egg_path = None
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44 easy_install.initialize_options(self)
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45 self.setup_path = None
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46 self.always_copy_from = '.' # always copy eggs installed in curdir
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47
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48 def finalize_options(self):
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49 ei = self.get_finalized_command("egg_info")
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50 if ei.broken_egg_info:
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51 template = "Please rename %r to %r before using 'develop'"
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52 args = ei.egg_info, ei.broken_egg_info
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53 raise DistutilsError(template % args)
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54 self.args = [ei.egg_name]
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55
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56 easy_install.finalize_options(self)
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57 self.expand_basedirs()
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58 self.expand_dirs()
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59 # pick up setup-dir .egg files only: no .egg-info
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60 self.package_index.scan(glob.glob('*.egg'))
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61
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62 egg_link_fn = ei.egg_name + '.egg-link'
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63 self.egg_link = os.path.join(self.install_dir, egg_link_fn)
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64 self.egg_base = ei.egg_base
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65 if self.egg_path is None:
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66 self.egg_path = os.path.abspath(ei.egg_base)
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67
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68 target = pkg_resources.normalize_path(self.egg_base)
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69 egg_path = pkg_resources.normalize_path(
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70 os.path.join(self.install_dir, self.egg_path))
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71 if egg_path != target:
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72 raise DistutilsOptionError(
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73 "--egg-path must be a relative path from the install"
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74 " directory to " + target
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75 )
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76
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77 # Make a distribution for the package's source
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78 self.dist = pkg_resources.Distribution(
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79 target,
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80 pkg_resources.PathMetadata(target, os.path.abspath(ei.egg_info)),
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81 project_name=ei.egg_name
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82 )
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83
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84 self.setup_path = self._resolve_setup_path(
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85 self.egg_base,
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86 self.install_dir,
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87 self.egg_path,
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88 )
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89
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90 @staticmethod
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91 def _resolve_setup_path(egg_base, install_dir, egg_path):
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92 """
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93 Generate a path from egg_base back to '.' where the
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94 setup script resides and ensure that path points to the
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95 setup path from $install_dir/$egg_path.
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96 """
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97 path_to_setup = egg_base.replace(os.sep, '/').rstrip('/')
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98 if path_to_setup != os.curdir:
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99 path_to_setup = '../' * (path_to_setup.count('/') + 1)
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100 resolved = pkg_resources.normalize_path(
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101 os.path.join(install_dir, egg_path, path_to_setup)
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102 )
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103 if resolved != pkg_resources.normalize_path(os.curdir):
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104 raise DistutilsOptionError(
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105 "Can't get a consistent path to setup script from"
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106 " installation directory", resolved,
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107 pkg_resources.normalize_path(os.curdir))
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108 return path_to_setup
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109
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110 def install_for_development(self):
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111 if not six.PY2 and getattr(self.distribution, 'use_2to3', False):
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112 # If we run 2to3 we can not do this inplace:
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113
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114 # Ensure metadata is up-to-date
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115 self.reinitialize_command('build_py', inplace=0)
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116 self.run_command('build_py')
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117 bpy_cmd = self.get_finalized_command("build_py")
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118 build_path = pkg_resources.normalize_path(bpy_cmd.build_lib)
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119
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120 # Build extensions
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121 self.reinitialize_command('egg_info', egg_base=build_path)
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122 self.run_command('egg_info')
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123
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124 self.reinitialize_command('build_ext', inplace=0)
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125 self.run_command('build_ext')
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126
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127 # Fixup egg-link and easy-install.pth
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128 ei_cmd = self.get_finalized_command("egg_info")
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129 self.egg_path = build_path
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130 self.dist.location = build_path
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131 # XXX
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132 self.dist._provider = pkg_resources.PathMetadata(
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133 build_path, ei_cmd.egg_info)
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134 else:
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135 # Without 2to3 inplace works fine:
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136 self.run_command('egg_info')
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137
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138 # Build extensions in-place
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139 self.reinitialize_command('build_ext', inplace=1)
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140 self.run_command('build_ext')
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141
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142 self.install_site_py() # ensure that target dir is site-safe
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143 if setuptools.bootstrap_install_from:
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144 self.easy_install(setuptools.bootstrap_install_from)
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145 setuptools.bootstrap_install_from = None
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146
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147 self.install_namespaces()
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148
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149 # create an .egg-link in the installation dir, pointing to our egg
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150 log.info("Creating %s (link to %s)", self.egg_link, self.egg_base)
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151 if not self.dry_run:
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152 with open(self.egg_link, "w") as f:
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153 f.write(self.egg_path + "\n" + self.setup_path)
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154 # postprocess the installed distro, fixing up .pth, installing scripts,
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155 # and handling requirements
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156 self.process_distribution(None, self.dist, not self.no_deps)
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157
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158 def uninstall_link(self):
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159 if os.path.exists(self.egg_link):
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160 log.info("Removing %s (link to %s)", self.egg_link, self.egg_base)
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161 egg_link_file = open(self.egg_link)
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162 contents = [line.rstrip() for line in egg_link_file]
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163 egg_link_file.close()
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164 if contents not in ([self.egg_path],
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165 [self.egg_path, self.setup_path]):
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166 log.warn("Link points to %s: uninstall aborted", contents)
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167 return
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168 if not self.dry_run:
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169 os.unlink(self.egg_link)
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170 if not self.dry_run:
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171 self.update_pth(self.dist) # remove any .pth link to us
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172 if self.distribution.scripts:
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173 # XXX should also check for entry point scripts!
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174 log.warn("Note: you must uninstall or replace scripts manually!")
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175
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176 def install_egg_scripts(self, dist):
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177 if dist is not self.dist:
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178 # Installing a dependency, so fall back to normal behavior
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179 return easy_install.install_egg_scripts(self, dist)
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180
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181 # create wrapper scripts in the script dir, pointing to dist.scripts
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182
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183 # new-style...
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184 self.install_wrapper_scripts(dist)
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185
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186 # ...and old-style
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187 for script_name in self.distribution.scripts or []:
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188 script_path = os.path.abspath(convert_path(script_name))
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189 script_name = os.path.basename(script_path)
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190 with io.open(script_path) as strm:
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191 script_text = strm.read()
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192 self.install_script(dist, script_name, script_text, script_path)
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193
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194 def install_wrapper_scripts(self, dist):
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195 dist = VersionlessRequirement(dist)
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196 return easy_install.install_wrapper_scripts(self, dist)
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197
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198
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199 class VersionlessRequirement:
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200 """
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201 Adapt a pkg_resources.Distribution to simply return the project
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202 name as the 'requirement' so that scripts will work across
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203 multiple versions.
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204
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205 >>> from pkg_resources import Distribution
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206 >>> dist = Distribution(project_name='foo', version='1.0')
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207 >>> str(dist.as_requirement())
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208 'foo==1.0'
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209 >>> adapted_dist = VersionlessRequirement(dist)
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210 >>> str(adapted_dist.as_requirement())
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211 'foo'
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212 """
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213
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214 def __init__(self, dist):
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215 self.__dist = dist
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216
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217 def __getattr__(self, name):
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218 return getattr(self.__dist, name)
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219
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220 def as_requirement(self):
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221 return self.project_name