Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

gh-100176: venv: Remove redundant compat code for Python <= 3.2 #100177

Merged
merged 1 commit into from
Dec 14, 2022
Merged
Show file tree
Hide file tree
Changes from all commits
Commits
File filter

Filter by extension

Filter by extension

Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
128 changes: 60 additions & 68 deletions Doc/library/venv.rst
Original file line number Diff line number Diff line change
Expand Up @@ -497,76 +497,68 @@ subclass which installs setuptools and pip into a created virtual environment::
url = 'https://bootstrap.pypa.io/get-pip.py'
self.install_script(context, 'pip', url)


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 or later')
import argparse

parser = argparse.ArgumentParser(prog=__name__,
description='Creates virtual Python '
'environments in one or '
'more target '
'directories.')
parser.add_argument('dirs', metavar='ENV_DIR', nargs='+',
help='A directory in which to create the '
'virtual environment.')
parser.add_argument('--no-setuptools', default=False,
action='store_true', dest='nodist',
help="Don't install setuptools or pip in the "
"virtual environment.")
parser.add_argument('--no-pip', default=False,
action='store_true', dest='nopip',
help="Don't install pip in the virtual "
"environment.")
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.')
parser.add_argument('dirs', metavar='ENV_DIR', nargs='+',
help='A directory in which to create the '
'virtual environment.')
parser.add_argument('--no-setuptools', default=False,
action='store_true', dest='nodist',
help="Don't install setuptools or pip in the "
"virtual environment.")
parser.add_argument('--no-pip', default=False,
action='store_true', dest='nopip',
help="Don't install pip in the virtual "
"environment.")
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
parser.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.')
parser.add_argument('--clear', default=False, action='store_true',
dest='clear', help='Delete the contents of the '
'virtual environment '
'directory if it already '
'exists, before virtual '
'environment creation.')
parser.add_argument('--upgrade', default=False, action='store_true',
dest='upgrade', help='Upgrade the virtual '
'environment directory to '
'use this version of '
'Python, assuming Python '
'has been upgraded '
'in-place.')
parser.add_argument('--verbose', default=False, action='store_true',
dest='verbose', help='Display the output '
'from the scripts which '
'install setuptools and pip.')
options = parser.parse_args(args)
if options.upgrade and options.clear:
raise ValueError('you cannot supply --upgrade and --clear together.')
builder = ExtendedEnvBuilder(system_site_packages=options.system_site,
clear=options.clear,
symlinks=options.symlinks,
upgrade=options.upgrade,
nodist=options.nodist,
nopip=options.nopip,
verbose=options.verbose)
for d in options.dirs:
builder.create(d)
use_symlinks = True
parser.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.')
parser.add_argument('--clear', default=False, action='store_true',
dest='clear', help='Delete the contents of the '
'virtual environment '
'directory if it already '
'exists, before virtual '
'environment creation.')
parser.add_argument('--upgrade', default=False, action='store_true',
dest='upgrade', help='Upgrade the virtual '
'environment directory to '
'use this version of '
'Python, assuming Python '
'has been upgraded '
'in-place.')
parser.add_argument('--verbose', default=False, action='store_true',
dest='verbose', help='Display the output '
'from the scripts which '
'install setuptools and pip.')
options = parser.parse_args(args)
if options.upgrade and options.clear:
raise ValueError('you cannot supply --upgrade and --clear together.')
builder = ExtendedEnvBuilder(system_site_packages=options.system_site,
clear=options.clear,
symlinks=options.symlinks,
upgrade=options.upgrade,
nodist=options.nodist,
nopip=options.nopip,
verbose=options.verbose)
for d in options.dirs:
builder.create(d)

if __name__ == '__main__':
rc = 1
Expand Down
149 changes: 71 additions & 78 deletions Lib/venv/__init__.py
Original file line number Diff line number Diff line change
Expand Up @@ -223,7 +223,7 @@ def symlink_or_copy(self, src, dst, relative_symlinks_ok=False):
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)
Expand Down Expand Up @@ -418,11 +418,11 @@ def install_scripts(self, context, path):
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'))):
Expand Down Expand Up @@ -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
Expand Down