diff options
Diffstat (limited to 'Lib/venv/__init__.py')
| -rw-r--r-- | Lib/venv/__init__.py | 149 |
1 files changed, 71 insertions, 78 deletions
diff --git a/Lib/venv/__init__.py b/Lib/venv/__init__.py index 7bfc2d1..978c983 100644 --- a/Lib/venv/__init__.py +++ b/Lib/venv/__init__.py @@ -223,7 +223,7 @@ class EnvBuilder: force_copy = not self.symlinks if not force_copy: try: - if not os.path.islink(dst): # can't link to itself! + if not os.path.islink(dst): # can't link to itself! if relative_symlinks_ok: assert os.path.dirname(src) == os.path.dirname(dst) os.symlink(os.path.basename(src), dst) @@ -418,11 +418,11 @@ class EnvBuilder: binpath = context.bin_path plen = len(path) for root, dirs, files in os.walk(path): - if root == path: # at top-level, remove irrelevant dirs + if root == path: # at top-level, remove irrelevant dirs for d in dirs[:]: if d not in ('common', os.name): dirs.remove(d) - continue # ignore files in top level + continue # ignore files in top level for f in files: if (os.name == 'nt' and f.startswith('python') and f.endswith(('.exe', '.pdb'))): @@ -468,83 +468,76 @@ def create(env_dir, system_site_packages=False, clear=False, prompt=prompt, upgrade_deps=upgrade_deps) builder.create(env_dir) + def main(args=None): - compatible = True - if sys.version_info < (3, 3): - compatible = False - elif not hasattr(sys, 'base_prefix'): - compatible = False - if not compatible: - raise ValueError('This script is only for use with Python >= 3.3') + import argparse + + parser = argparse.ArgumentParser(prog=__name__, + description='Creates virtual Python ' + 'environments in one or ' + 'more target ' + 'directories.', + epilog='Once an environment has been ' + 'created, you may wish to ' + 'activate it, e.g. by ' + 'sourcing an activate script ' + 'in its bin directory.') + parser.add_argument('dirs', metavar='ENV_DIR', nargs='+', + help='A directory to create the environment in.') + parser.add_argument('--system-site-packages', default=False, + action='store_true', dest='system_site', + help='Give the virtual environment access to the ' + 'system site-packages dir.') + if os.name == 'nt': + use_symlinks = False else: - import argparse - - parser = argparse.ArgumentParser(prog=__name__, - description='Creates virtual Python ' - 'environments in one or ' - 'more target ' - 'directories.', - epilog='Once an environment has been ' - 'created, you may wish to ' - 'activate it, e.g. by ' - 'sourcing an activate script ' - 'in its bin directory.') - parser.add_argument('dirs', metavar='ENV_DIR', nargs='+', - help='A directory to create the environment in.') - parser.add_argument('--system-site-packages', default=False, - action='store_true', dest='system_site', - help='Give the virtual environment access to the ' - 'system site-packages dir.') - if os.name == 'nt': - use_symlinks = False - else: - use_symlinks = True - group = parser.add_mutually_exclusive_group() - group.add_argument('--symlinks', default=use_symlinks, - action='store_true', dest='symlinks', - help='Try to use symlinks rather than copies, ' - 'when symlinks are not the default for ' - 'the platform.') - group.add_argument('--copies', default=not use_symlinks, - action='store_false', dest='symlinks', - help='Try to use copies rather than symlinks, ' - 'even when symlinks are the default for ' - 'the platform.') - parser.add_argument('--clear', default=False, action='store_true', - dest='clear', help='Delete the contents of the ' - 'environment directory if it ' - 'already exists, before ' - 'environment creation.') - parser.add_argument('--upgrade', default=False, action='store_true', - dest='upgrade', help='Upgrade the environment ' - 'directory to use this version ' - 'of Python, assuming Python ' - 'has been upgraded in-place.') - parser.add_argument('--without-pip', dest='with_pip', - default=True, action='store_false', - help='Skips installing or upgrading pip in the ' - 'virtual environment (pip is bootstrapped ' - 'by default)') - parser.add_argument('--prompt', - help='Provides an alternative prompt prefix for ' - 'this environment.') - parser.add_argument('--upgrade-deps', default=False, action='store_true', - dest='upgrade_deps', - help='Upgrade core dependencies: {} to the latest ' - 'version in PyPI'.format( - ' '.join(CORE_VENV_DEPS))) - options = parser.parse_args(args) - if options.upgrade and options.clear: - raise ValueError('you cannot supply --upgrade and --clear together.') - builder = EnvBuilder(system_site_packages=options.system_site, - clear=options.clear, - symlinks=options.symlinks, - upgrade=options.upgrade, - with_pip=options.with_pip, - prompt=options.prompt, - upgrade_deps=options.upgrade_deps) - for d in options.dirs: - builder.create(d) + use_symlinks = True + group = parser.add_mutually_exclusive_group() + group.add_argument('--symlinks', default=use_symlinks, + action='store_true', dest='symlinks', + help='Try to use symlinks rather than copies, ' + 'when symlinks are not the default for ' + 'the platform.') + group.add_argument('--copies', default=not use_symlinks, + action='store_false', dest='symlinks', + help='Try to use copies rather than symlinks, ' + 'even when symlinks are the default for ' + 'the platform.') + parser.add_argument('--clear', default=False, action='store_true', + dest='clear', help='Delete the contents of the ' + 'environment directory if it ' + 'already exists, before ' + 'environment creation.') + parser.add_argument('--upgrade', default=False, action='store_true', + dest='upgrade', help='Upgrade the environment ' + 'directory to use this version ' + 'of Python, assuming Python ' + 'has been upgraded in-place.') + parser.add_argument('--without-pip', dest='with_pip', + default=True, action='store_false', + help='Skips installing or upgrading pip in the ' + 'virtual environment (pip is bootstrapped ' + 'by default)') + parser.add_argument('--prompt', + help='Provides an alternative prompt prefix for ' + 'this environment.') + parser.add_argument('--upgrade-deps', default=False, action='store_true', + dest='upgrade_deps', + help=f'Upgrade core dependencies: {" ".join(CORE_VENV_DEPS)} ' + 'to the latest version in PyPI') + options = parser.parse_args(args) + if options.upgrade and options.clear: + raise ValueError('you cannot supply --upgrade and --clear together.') + builder = EnvBuilder(system_site_packages=options.system_site, + clear=options.clear, + symlinks=options.symlinks, + upgrade=options.upgrade, + with_pip=options.with_pip, + prompt=options.prompt, + upgrade_deps=options.upgrade_deps) + for d in options.dirs: + builder.create(d) + if __name__ == '__main__': rc = 1 |