Mercurial > repos > guerler > springsuite
annotate planemo/lib/python3.7/site-packages/pip/_internal/commands/install.py @ 1:56ad4e20f292 draft
"planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
author | guerler |
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date | Fri, 31 Jul 2020 00:32:28 -0400 |
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1
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1 from __future__ import absolute_import |
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2 |
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3 import errno |
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4 import logging |
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5 import operator |
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6 import os |
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7 import shutil |
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8 from optparse import SUPPRESS_HELP |
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9 |
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10 from pip._vendor import pkg_resources |
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11 |
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12 from pip._internal.cache import WheelCache |
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13 from pip._internal.cli import cmdoptions |
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14 from pip._internal.cli.base_command import RequirementCommand |
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15 from pip._internal.cli.cmdoptions import make_target_python |
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16 from pip._internal.cli.status_codes import ERROR |
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17 from pip._internal.exceptions import ( |
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18 CommandError, InstallationError, PreviousBuildDirError, |
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19 ) |
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20 from pip._internal.legacy_resolve import Resolver |
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21 from pip._internal.locations import distutils_scheme |
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22 from pip._internal.operations.check import check_install_conflicts |
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23 from pip._internal.operations.prepare import RequirementPreparer |
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24 from pip._internal.req import RequirementSet, install_given_reqs |
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25 from pip._internal.req.req_tracker import RequirementTracker |
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26 from pip._internal.utils.filesystem import check_path_owner |
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27 from pip._internal.utils.misc import ( |
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28 ensure_dir, get_installed_version, |
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29 protect_pip_from_modification_on_windows, |
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30 ) |
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31 from pip._internal.utils.temp_dir import TempDirectory |
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32 from pip._internal.utils.virtualenv import virtualenv_no_global |
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33 from pip._internal.wheel import WheelBuilder |
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34 |
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35 logger = logging.getLogger(__name__) |
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36 |
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37 |
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38 def is_wheel_installed(): |
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39 """ |
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40 Return whether the wheel package is installed. |
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41 """ |
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42 try: |
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43 import wheel # noqa: F401 |
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44 except ImportError: |
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45 return False |
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46 |
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47 return True |
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48 |
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49 |
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50 def build_wheels(builder, pep517_requirements, legacy_requirements, session): |
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51 """ |
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52 Build wheels for requirements, depending on whether wheel is installed. |
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53 """ |
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54 # We don't build wheels for legacy requirements if wheel is not installed. |
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55 should_build_legacy = is_wheel_installed() |
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56 |
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57 # Always build PEP 517 requirements |
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58 build_failures = builder.build( |
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59 pep517_requirements, |
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60 session=session, autobuilding=True |
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61 ) |
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62 |
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63 if should_build_legacy: |
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64 # We don't care about failures building legacy |
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65 # requirements, as we'll fall through to a direct |
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66 # install for those. |
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67 builder.build( |
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68 legacy_requirements, |
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69 session=session, autobuilding=True |
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70 ) |
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71 |
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72 return build_failures |
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73 |
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74 |
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75 class InstallCommand(RequirementCommand): |
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76 """ |
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77 Install packages from: |
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78 |
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79 - PyPI (and other indexes) using requirement specifiers. |
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80 - VCS project urls. |
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81 - Local project directories. |
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82 - Local or remote source archives. |
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83 |
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84 pip also supports installing from "requirements files," which provide |
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85 an easy way to specify a whole environment to be installed. |
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86 """ |
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87 name = 'install' |
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88 |
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89 usage = """ |
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90 %prog [options] <requirement specifier> [package-index-options] ... |
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91 %prog [options] -r <requirements file> [package-index-options] ... |
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92 %prog [options] [-e] <vcs project url> ... |
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93 %prog [options] [-e] <local project path> ... |
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94 %prog [options] <archive url/path> ...""" |
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95 |
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96 summary = 'Install packages.' |
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97 |
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98 def __init__(self, *args, **kw): |
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99 super(InstallCommand, self).__init__(*args, **kw) |
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100 |
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101 cmd_opts = self.cmd_opts |
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102 |
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103 cmd_opts.add_option(cmdoptions.requirements()) |
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104 cmd_opts.add_option(cmdoptions.constraints()) |
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105 cmd_opts.add_option(cmdoptions.no_deps()) |
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106 cmd_opts.add_option(cmdoptions.pre()) |
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107 |
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108 cmd_opts.add_option(cmdoptions.editable()) |
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109 cmd_opts.add_option( |
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110 '-t', '--target', |
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111 dest='target_dir', |
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112 metavar='dir', |
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113 default=None, |
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114 help='Install packages into <dir>. ' |
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115 'By default this will not replace existing files/folders in ' |
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116 '<dir>. Use --upgrade to replace existing packages in <dir> ' |
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117 'with new versions.' |
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118 ) |
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119 cmdoptions.add_target_python_options(cmd_opts) |
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120 |
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121 cmd_opts.add_option( |
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122 '--user', |
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123 dest='use_user_site', |
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124 action='store_true', |
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125 help="Install to the Python user install directory for your " |
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126 "platform. Typically ~/.local/, or %APPDATA%\\Python on " |
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127 "Windows. (See the Python documentation for site.USER_BASE " |
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128 "for full details.)") |
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129 cmd_opts.add_option( |
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130 '--no-user', |
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131 dest='use_user_site', |
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132 action='store_false', |
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133 help=SUPPRESS_HELP) |
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134 cmd_opts.add_option( |
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135 '--root', |
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136 dest='root_path', |
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137 metavar='dir', |
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138 default=None, |
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139 help="Install everything relative to this alternate root " |
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140 "directory.") |
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141 cmd_opts.add_option( |
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142 '--prefix', |
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143 dest='prefix_path', |
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144 metavar='dir', |
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145 default=None, |
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146 help="Installation prefix where lib, bin and other top-level " |
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147 "folders are placed") |
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148 |
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149 cmd_opts.add_option(cmdoptions.build_dir()) |
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150 |
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151 cmd_opts.add_option(cmdoptions.src()) |
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152 |
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153 cmd_opts.add_option( |
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154 '-U', '--upgrade', |
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155 dest='upgrade', |
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156 action='store_true', |
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157 help='Upgrade all specified packages to the newest available ' |
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158 'version. The handling of dependencies depends on the ' |
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159 'upgrade-strategy used.' |
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160 ) |
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161 |
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162 cmd_opts.add_option( |
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163 '--upgrade-strategy', |
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164 dest='upgrade_strategy', |
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165 default='only-if-needed', |
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166 choices=['only-if-needed', 'eager'], |
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167 help='Determines how dependency upgrading should be handled ' |
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168 '[default: %default]. ' |
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169 '"eager" - dependencies are upgraded regardless of ' |
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170 'whether the currently installed version satisfies the ' |
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171 'requirements of the upgraded package(s). ' |
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172 '"only-if-needed" - are upgraded only when they do not ' |
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173 'satisfy the requirements of the upgraded package(s).' |
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174 ) |
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175 |
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176 cmd_opts.add_option( |
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177 '--force-reinstall', |
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178 dest='force_reinstall', |
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179 action='store_true', |
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180 help='Reinstall all packages even if they are already ' |
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181 'up-to-date.') |
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182 |
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183 cmd_opts.add_option( |
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184 '-I', '--ignore-installed', |
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185 dest='ignore_installed', |
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186 action='store_true', |
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187 help='Ignore the installed packages (reinstalling instead).') |
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188 |
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189 cmd_opts.add_option(cmdoptions.ignore_requires_python()) |
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190 cmd_opts.add_option(cmdoptions.no_build_isolation()) |
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191 cmd_opts.add_option(cmdoptions.use_pep517()) |
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192 cmd_opts.add_option(cmdoptions.no_use_pep517()) |
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193 |
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194 cmd_opts.add_option(cmdoptions.install_options()) |
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195 cmd_opts.add_option(cmdoptions.global_options()) |
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196 |
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197 cmd_opts.add_option( |
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198 "--compile", |
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199 action="store_true", |
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200 dest="compile", |
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201 default=True, |
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202 help="Compile Python source files to bytecode", |
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203 ) |
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204 |
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205 cmd_opts.add_option( |
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206 "--no-compile", |
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207 action="store_false", |
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208 dest="compile", |
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209 help="Do not compile Python source files to bytecode", |
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210 ) |
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211 |
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212 cmd_opts.add_option( |
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213 "--no-warn-script-location", |
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214 action="store_false", |
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215 dest="warn_script_location", |
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216 default=True, |
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217 help="Do not warn when installing scripts outside PATH", |
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218 ) |
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219 cmd_opts.add_option( |
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220 "--no-warn-conflicts", |
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221 action="store_false", |
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222 dest="warn_about_conflicts", |
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223 default=True, |
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224 help="Do not warn about broken dependencies", |
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225 ) |
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226 |
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227 cmd_opts.add_option(cmdoptions.no_binary()) |
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228 cmd_opts.add_option(cmdoptions.only_binary()) |
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229 cmd_opts.add_option(cmdoptions.prefer_binary()) |
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230 cmd_opts.add_option(cmdoptions.no_clean()) |
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231 cmd_opts.add_option(cmdoptions.require_hashes()) |
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232 cmd_opts.add_option(cmdoptions.progress_bar()) |
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233 |
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234 index_opts = cmdoptions.make_option_group( |
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235 cmdoptions.index_group, |
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236 self.parser, |
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237 ) |
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238 |
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239 self.parser.insert_option_group(0, index_opts) |
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240 self.parser.insert_option_group(0, cmd_opts) |
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241 |
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242 def run(self, options, args): |
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243 cmdoptions.check_install_build_global(options) |
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244 upgrade_strategy = "to-satisfy-only" |
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245 if options.upgrade: |
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246 upgrade_strategy = options.upgrade_strategy |
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247 |
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248 if options.build_dir: |
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249 options.build_dir = os.path.abspath(options.build_dir) |
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250 |
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251 cmdoptions.check_dist_restriction(options, check_target=True) |
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252 |
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253 options.src_dir = os.path.abspath(options.src_dir) |
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254 install_options = options.install_options or [] |
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255 if options.use_user_site: |
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256 if options.prefix_path: |
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257 raise CommandError( |
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258 "Can not combine '--user' and '--prefix' as they imply " |
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259 "different installation locations" |
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260 ) |
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261 if virtualenv_no_global(): |
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262 raise InstallationError( |
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263 "Can not perform a '--user' install. User site-packages " |
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264 "are not visible in this virtualenv." |
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265 ) |
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266 install_options.append('--user') |
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267 install_options.append('--prefix=') |
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268 |
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269 target_temp_dir = TempDirectory(kind="target") |
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270 if options.target_dir: |
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271 options.ignore_installed = True |
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272 options.target_dir = os.path.abspath(options.target_dir) |
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273 if (os.path.exists(options.target_dir) and not |
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274 os.path.isdir(options.target_dir)): |
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275 raise CommandError( |
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276 "Target path exists but is not a directory, will not " |
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277 "continue." |
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278 ) |
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279 |
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280 # Create a target directory for using with the target option |
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281 target_temp_dir.create() |
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282 install_options.append('--home=' + target_temp_dir.path) |
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283 |
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284 global_options = options.global_options or [] |
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285 |
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286 with self._build_session(options) as session: |
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287 target_python = make_target_python(options) |
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288 finder = self._build_package_finder( |
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289 options=options, |
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290 session=session, |
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291 target_python=target_python, |
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292 ignore_requires_python=options.ignore_requires_python, |
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293 ) |
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294 build_delete = (not (options.no_clean or options.build_dir)) |
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295 wheel_cache = WheelCache(options.cache_dir, options.format_control) |
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296 |
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297 if options.cache_dir and not check_path_owner(options.cache_dir): |
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298 logger.warning( |
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299 "The directory '%s' or its parent directory is not owned " |
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300 "by the current user and caching wheels has been " |
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301 "disabled. check the permissions and owner of that " |
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302 "directory. If executing pip with sudo, you may want " |
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303 "sudo's -H flag.", |
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304 options.cache_dir, |
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305 ) |
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306 options.cache_dir = None |
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307 |
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308 with RequirementTracker() as req_tracker, TempDirectory( |
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309 options.build_dir, delete=build_delete, kind="install" |
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310 ) as directory: |
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311 requirement_set = RequirementSet( |
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312 require_hashes=options.require_hashes, |
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313 check_supported_wheels=not options.target_dir, |
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314 ) |
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315 |
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316 try: |
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317 self.populate_requirement_set( |
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318 requirement_set, args, options, finder, session, |
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319 self.name, wheel_cache |
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320 ) |
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321 preparer = RequirementPreparer( |
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322 build_dir=directory.path, |
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323 src_dir=options.src_dir, |
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324 download_dir=None, |
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325 wheel_download_dir=None, |
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326 progress_bar=options.progress_bar, |
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327 build_isolation=options.build_isolation, |
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328 req_tracker=req_tracker, |
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329 ) |
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330 |
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331 resolver = Resolver( |
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332 preparer=preparer, |
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333 finder=finder, |
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334 session=session, |
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335 wheel_cache=wheel_cache, |
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336 use_user_site=options.use_user_site, |
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337 upgrade_strategy=upgrade_strategy, |
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338 force_reinstall=options.force_reinstall, |
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339 ignore_dependencies=options.ignore_dependencies, |
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340 ignore_requires_python=options.ignore_requires_python, |
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341 ignore_installed=options.ignore_installed, |
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342 isolated=options.isolated_mode, |
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343 use_pep517=options.use_pep517 |
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344 ) |
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345 resolver.resolve(requirement_set) |
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346 |
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347 protect_pip_from_modification_on_windows( |
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348 modifying_pip=requirement_set.has_requirement("pip") |
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349 ) |
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350 |
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351 # Consider legacy and PEP517-using requirements separately |
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352 legacy_requirements = [] |
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353 pep517_requirements = [] |
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354 for req in requirement_set.requirements.values(): |
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355 if req.use_pep517: |
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356 pep517_requirements.append(req) |
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357 else: |
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358 legacy_requirements.append(req) |
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359 |
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360 wheel_builder = WheelBuilder( |
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361 finder, preparer, wheel_cache, |
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362 build_options=[], global_options=[], |
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363 ) |
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364 |
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365 build_failures = build_wheels( |
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366 builder=wheel_builder, |
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367 pep517_requirements=pep517_requirements, |
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368 legacy_requirements=legacy_requirements, |
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369 session=session, |
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370 ) |
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371 |
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372 # If we're using PEP 517, we cannot do a direct install |
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373 # so we fail here. |
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374 if build_failures: |
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375 raise InstallationError( |
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376 "Could not build wheels for {} which use" |
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377 " PEP 517 and cannot be installed directly".format( |
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378 ", ".join(r.name for r in build_failures))) |
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379 |
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380 to_install = resolver.get_installation_order( |
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381 requirement_set |
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382 ) |
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383 |
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384 # Consistency Checking of the package set we're installing. |
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385 should_warn_about_conflicts = ( |
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386 not options.ignore_dependencies and |
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387 options.warn_about_conflicts |
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388 ) |
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389 if should_warn_about_conflicts: |
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390 self._warn_about_conflicts(to_install) |
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391 |
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392 # Don't warn about script install locations if |
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393 # --target has been specified |
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394 warn_script_location = options.warn_script_location |
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395 if options.target_dir: |
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396 warn_script_location = False |
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397 |
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398 installed = install_given_reqs( |
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399 to_install, |
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400 install_options, |
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401 global_options, |
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402 root=options.root_path, |
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403 home=target_temp_dir.path, |
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404 prefix=options.prefix_path, |
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405 pycompile=options.compile, |
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406 warn_script_location=warn_script_location, |
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407 use_user_site=options.use_user_site, |
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408 ) |
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409 |
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410 lib_locations = get_lib_location_guesses( |
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411 user=options.use_user_site, |
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412 home=target_temp_dir.path, |
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413 root=options.root_path, |
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414 prefix=options.prefix_path, |
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415 isolated=options.isolated_mode, |
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416 ) |
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417 working_set = pkg_resources.WorkingSet(lib_locations) |
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418 |
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419 reqs = sorted(installed, key=operator.attrgetter('name')) |
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420 items = [] |
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421 for req in reqs: |
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422 item = req.name |
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423 try: |
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424 installed_version = get_installed_version( |
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425 req.name, working_set=working_set |
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426 ) |
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427 if installed_version: |
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428 item += '-' + installed_version |
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429 except Exception: |
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430 pass |
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431 items.append(item) |
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432 installed = ' '.join(items) |
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433 if installed: |
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434 logger.info('Successfully installed %s', installed) |
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435 except EnvironmentError as error: |
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436 show_traceback = (self.verbosity >= 1) |
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437 |
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438 message = create_env_error_message( |
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439 error, show_traceback, options.use_user_site, |
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440 ) |
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441 logger.error(message, exc_info=show_traceback) |
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442 |
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443 return ERROR |
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444 except PreviousBuildDirError: |
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445 options.no_clean = True |
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446 raise |
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447 finally: |
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448 # Clean up |
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449 if not options.no_clean: |
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450 requirement_set.cleanup_files() |
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451 wheel_cache.cleanup() |
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452 |
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453 if options.target_dir: |
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454 self._handle_target_dir( |
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455 options.target_dir, target_temp_dir, options.upgrade |
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456 ) |
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457 return requirement_set |
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458 |
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459 def _handle_target_dir(self, target_dir, target_temp_dir, upgrade): |
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460 ensure_dir(target_dir) |
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461 |
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462 # Checking both purelib and platlib directories for installed |
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463 # packages to be moved to target directory |
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464 lib_dir_list = [] |
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465 |
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466 with target_temp_dir: |
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467 # Checking both purelib and platlib directories for installed |
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468 # packages to be moved to target directory |
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469 scheme = distutils_scheme('', home=target_temp_dir.path) |
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470 purelib_dir = scheme['purelib'] |
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471 platlib_dir = scheme['platlib'] |
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472 data_dir = scheme['data'] |
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473 |
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474 if os.path.exists(purelib_dir): |
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475 lib_dir_list.append(purelib_dir) |
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476 if os.path.exists(platlib_dir) and platlib_dir != purelib_dir: |
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477 lib_dir_list.append(platlib_dir) |
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478 if os.path.exists(data_dir): |
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479 lib_dir_list.append(data_dir) |
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480 |
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481 for lib_dir in lib_dir_list: |
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482 for item in os.listdir(lib_dir): |
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483 if lib_dir == data_dir: |
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484 ddir = os.path.join(data_dir, item) |
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485 if any(s.startswith(ddir) for s in lib_dir_list[:-1]): |
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486 continue |
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487 target_item_dir = os.path.join(target_dir, item) |
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488 if os.path.exists(target_item_dir): |
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489 if not upgrade: |
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490 logger.warning( |
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491 'Target directory %s already exists. Specify ' |
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492 '--upgrade to force replacement.', |
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493 target_item_dir |
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494 ) |
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495 continue |
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496 if os.path.islink(target_item_dir): |
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497 logger.warning( |
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498 'Target directory %s already exists and is ' |
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499 'a link. Pip will not automatically replace ' |
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500 'links, please remove if replacement is ' |
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501 'desired.', |
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502 target_item_dir |
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503 ) |
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504 continue |
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505 if os.path.isdir(target_item_dir): |
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506 shutil.rmtree(target_item_dir) |
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507 else: |
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508 os.remove(target_item_dir) |
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509 |
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510 shutil.move( |
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511 os.path.join(lib_dir, item), |
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512 target_item_dir |
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513 ) |
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514 |
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515 def _warn_about_conflicts(self, to_install): |
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516 try: |
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517 package_set, _dep_info = check_install_conflicts(to_install) |
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518 except Exception: |
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519 logger.error("Error checking for conflicts.", exc_info=True) |
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520 return |
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521 missing, conflicting = _dep_info |
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522 |
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523 # NOTE: There is some duplication here from pip check |
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524 for project_name in missing: |
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525 version = package_set[project_name][0] |
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526 for dependency in missing[project_name]: |
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527 logger.critical( |
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528 "%s %s requires %s, which is not installed.", |
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529 project_name, version, dependency[1], |
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530 ) |
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531 |
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532 for project_name in conflicting: |
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533 version = package_set[project_name][0] |
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534 for dep_name, dep_version, req in conflicting[project_name]: |
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535 logger.critical( |
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536 "%s %s has requirement %s, but you'll have %s %s which is " |
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537 "incompatible.", |
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538 project_name, version, req, dep_name, dep_version, |
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539 ) |
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540 |
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541 |
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542 def get_lib_location_guesses(*args, **kwargs): |
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543 scheme = distutils_scheme('', *args, **kwargs) |
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544 return [scheme['purelib'], scheme['platlib']] |
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545 |
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546 |
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547 def create_env_error_message(error, show_traceback, using_user_site): |
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548 """Format an error message for an EnvironmentError |
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549 |
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550 It may occur anytime during the execution of the install command. |
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551 """ |
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552 parts = [] |
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553 |
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554 # Mention the error if we are not going to show a traceback |
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555 parts.append("Could not install packages due to an EnvironmentError") |
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556 if not show_traceback: |
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557 parts.append(": ") |
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558 parts.append(str(error)) |
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559 else: |
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560 parts.append(".") |
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561 |
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562 # Spilt the error indication from a helper message (if any) |
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563 parts[-1] += "\n" |
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564 |
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565 # Suggest useful actions to the user: |
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566 # (1) using user site-packages or (2) verifying the permissions |
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567 if error.errno == errno.EACCES: |
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568 user_option_part = "Consider using the `--user` option" |
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569 permissions_part = "Check the permissions" |
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570 |
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571 if not using_user_site: |
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572 parts.extend([ |
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573 user_option_part, " or ", |
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574 permissions_part.lower(), |
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575 ]) |
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576 else: |
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577 parts.append(permissions_part) |
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"planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff
changeset
|
578 parts.append(".\n") |
56ad4e20f292
"planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff
changeset
|
579 |
56ad4e20f292
"planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff
changeset
|
580 return "".join(parts).strip() + "\n" |