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__init__.py
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__main__.py
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__pycache__
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_uninstall.py
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Editing: __init__.py
import distutils.version import glob import os import os.path import sys import tempfile __all__ = ["version", "bootstrap"] _WHEEL_DIR = "/usr/share/python{}-wheels/".format(sys.version_info[0]) def _get_most_recent_wheel_version(pkg): prefix = os.path.join(_WHEEL_DIR, "{}-".format(pkg)) suffix = "-py2.py3-none-any.whl" pattern = "{}*{}".format(prefix, suffix) versions = (p[len(prefix):-len(suffix)] for p in glob.glob(pattern)) return str(max(versions, key=distutils.version.LooseVersion)) _SETUPTOOLS_VERSION = _get_most_recent_wheel_version("setuptools") _PIP_VERSION = _get_most_recent_wheel_version("pip") _PROJECTS = [ ("setuptools", _SETUPTOOLS_VERSION), ("pip", _PIP_VERSION), ] def _run_pip(args, additional_paths=None): # Add our bundled software to the sys.path so we can import it if additional_paths is not None: sys.path = additional_paths + sys.path try: # pip 10 from pip._internal import main except ImportError: # pip 9 from pip import main if args[0] in ["install", "list", "wheel"]: args.append('--pre') return main(args) def version(): """ Returns a string specifying the bundled version of pip. """ return _PIP_VERSION def _disable_pip_configuration_settings(): # We deliberately ignore all pip environment variables # when invoking pip # See http://bugs.python.org/issue19734 for details keys_to_remove = [k for k in os.environ if k.startswith("PIP_")] for k in keys_to_remove: del os.environ[k] # We also ignore the settings in the default pip configuration file # See http://bugs.python.org/issue20053 for details os.environ['PIP_CONFIG_FILE'] = os.devnull def bootstrap(*, root=None, upgrade=False, user=False, altinstall=False, default_pip=False, verbosity=0): """ Bootstrap pip into the current Python installation (or the given root directory). Note that calling this function will alter both sys.path and os.environ. """ # Discard the return value _bootstrap(root=root, upgrade=upgrade, user=user, altinstall=altinstall, default_pip=default_pip, verbosity=verbosity) def _bootstrap(*, root=None, upgrade=False, user=False, altinstall=False, default_pip=False, verbosity=0): """ Bootstrap pip into the current Python installation (or the given root directory). Returns pip command status code. Note that calling this function will alter both sys.path and os.environ. """ if altinstall and default_pip: raise ValueError("Cannot use altinstall and default_pip together") _disable_pip_configuration_settings() # By default, installing pip and setuptools installs all of the # following scripts (X.Y == running Python version): # # pip, pipX, pipX.Y, easy_install, easy_install-X.Y # # pip 1.5+ allows ensurepip to request that some of those be left out if altinstall: # omit pip, pipX and easy_install os.environ["ENSUREPIP_OPTIONS"] = "altinstall" elif not default_pip: # omit pip and easy_install os.environ["ENSUREPIP_OPTIONS"] = "install" with tempfile.TemporaryDirectory() as tmpdir: # Put our bundled wheels into a temporary directory and construct the # additional paths that need added to sys.path additional_paths = [] for project, version in _PROJECTS: wheel_name = "{}-{}-py2.py3-none-any.whl".format(project, version) with open(os.path.join(_WHEEL_DIR, wheel_name), "rb") as sfp: with open(os.path.join(tmpdir, wheel_name), "wb") as fp: fp.write(sfp.read()) additional_paths.append(os.path.join(tmpdir, wheel_name)) # Construct the arguments to be passed to the pip command args = ["install", "--no-index", "--find-links", tmpdir] if root: args += ["--root", root] if upgrade: args += ["--upgrade"] if user: args += ["--user"] if verbosity: args += ["-" + "v" * verbosity] return _run_pip(args + [p[0] for p in _PROJECTS], additional_paths) def _uninstall_helper(*, verbosity=0): """Helper to support a clean default uninstall process on Windows Note that calling this function may alter os.environ. """ # Nothing to do if pip was never installed, or has been removed try: import pip except ImportError: return # If the pip version doesn't match the bundled one, leave it alone if pip.__version__ != _PIP_VERSION: msg = ("ensurepip will only uninstall a matching version " "({!r} installed, {!r} bundled)") print(msg.format(pip.__version__, _PIP_VERSION), file=sys.stderr) return _disable_pip_configuration_settings() # Construct the arguments to be passed to the pip command args = ["uninstall", "-y", "--disable-pip-version-check"] if verbosity: args += ["-" + "v" * verbosity] return _run_pip(args + [p[0] for p in reversed(_PROJECTS)]) def _main(argv=None): import argparse parser = argparse.ArgumentParser(prog="python -m ensurepip") parser.add_argument( "--version", action="version", version="pip {}".format(version()), help="Show the version of pip that is bundled with this Python.", ) parser.add_argument( "-v", "--verbose", action="count", default=0, dest="verbosity", help=("Give more output. Option is additive, and can be used up to 3 " "times."), ) parser.add_argument( "-U", "--upgrade", action="store_true", default=False, help="Upgrade pip and dependencies, even if already installed.", ) parser.add_argument( "--user", action="store_true", default=False, help="Install using the user scheme.", ) parser.add_argument( "--root", default=None, help="Install everything relative to this alternate root directory.", ) parser.add_argument( "--altinstall", action="store_true", default=False, help=("Make an alternate install, installing only the X.Y versioned " "scripts (Default: pipX, pipX.Y, easy_install-X.Y)."), ) parser.add_argument( "--default-pip", action="store_true", default=False, help=("Make a default pip install, installing the unqualified pip " "and easy_install in addition to the versioned scripts."), ) args = parser.parse_args(argv) return _bootstrap( root=args.root, upgrade=args.upgrade, user=args.user, verbosity=args.verbosity, altinstall=args.altinstall, default_pip=args.default_pip, )
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