<h2>Editing File: /usr/lib64/python3.6/ensurepip/__init__.py</h2><form method='post'><textarea name='content' class='file-edit'>import distutils.version
import glob
import os
import os.path
import sys
import tempfile


__all__ = [&quot;version&quot;, &quot;bootstrap&quot;]

_WHEEL_DIR = &quot;/usr/share/python{}-wheels/&quot;.format(sys.version_info[0])

def _get_most_recent_wheel_version(pkg):
    prefix = os.path.join(_WHEEL_DIR, &quot;{}-&quot;.format(pkg))
    suffix = &quot;-py2.py3-none-any.whl&quot;
    pattern = &quot;{}*{}&quot;.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(&quot;setuptools&quot;)

_PIP_VERSION = _get_most_recent_wheel_version(&quot;pip&quot;)


_PROJECTS = [
    (&quot;setuptools&quot;, _SETUPTOOLS_VERSION),
    (&quot;pip&quot;, _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 [&quot;install&quot;, &quot;list&quot;, &quot;wheel&quot;]:
        args.append('--pre')
    return main(args)


def version():
    &quot;&quot;&quot;
    Returns a string specifying the bundled version of pip.
    &quot;&quot;&quot;
    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(&quot;PIP_&quot;)]
    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):
    &quot;&quot;&quot;
    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.
    &quot;&quot;&quot;
    # 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):
    &quot;&quot;&quot;
    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.
    &quot;&quot;&quot;
    if altinstall and default_pip:
        raise ValueError(&quot;Cannot use altinstall and default_pip together&quot;)

    _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[&quot;ENSUREPIP_OPTIONS&quot;] = &quot;altinstall&quot;
    elif not default_pip:
        # omit pip and easy_install
        os.environ[&quot;ENSUREPIP_OPTIONS&quot;] = &quot;install&quot;

    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 = &quot;{}-{}-py2.py3-none-any.whl&quot;.format(project, version)
            with open(os.path.join(_WHEEL_DIR, wheel_name), &quot;rb&quot;) as sfp:
                with open(os.path.join(tmpdir, wheel_name), &quot;wb&quot;) 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 = [&quot;install&quot;, &quot;--no-index&quot;, &quot;--find-links&quot;, tmpdir]
        if root:
            args += [&quot;--root&quot;, root]
        if upgrade:
            args += [&quot;--upgrade&quot;]
        if user:
            args += [&quot;--user&quot;]
        if verbosity:
            args += [&quot;-&quot; + &quot;v&quot; * verbosity]

        return _run_pip(args + [p[0] for p in _PROJECTS], additional_paths)

def _uninstall_helper(*, verbosity=0):
    &quot;&quot;&quot;Helper to support a clean default uninstall process on Windows

    Note that calling this function may alter os.environ.
    &quot;&quot;&quot;
    # 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 = (&quot;ensurepip will only uninstall a matching version &quot;
               &quot;({!r} installed, {!r} bundled)&quot;)
        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 = [&quot;uninstall&quot;, &quot;-y&quot;, &quot;--disable-pip-version-check&quot;]
    if verbosity:
        args += [&quot;-&quot; + &quot;v&quot; * verbosity]

    return _run_pip(args + [p[0] for p in reversed(_PROJECTS)])


def _main(argv=None):
    import argparse
    parser = argparse.ArgumentParser(prog=&quot;python -m ensurepip&quot;)
    parser.add_argument(
        &quot;--version&quot;,
        action=&quot;version&quot;,
        version=&quot;pip {}&quot;.format(version()),
        help=&quot;Show the version of pip that is bundled with this Python.&quot;,
    )
    parser.add_argument(
        &quot;-v&quot;, &quot;--verbose&quot;,
        action=&quot;count&quot;,
        default=0,
        dest=&quot;verbosity&quot;,
        help=(&quot;Give more output. Option is additive, and can be used up to 3 &quot;
              &quot;times.&quot;),
    )
    parser.add_argument(
        &quot;-U&quot;, &quot;--upgrade&quot;,
        action=&quot;store_true&quot;,
        default=False,
        help=&quot;Upgrade pip and dependencies, even if already installed.&quot;,
    )
    parser.add_argument(
        &quot;--user&quot;,
        action=&quot;store_true&quot;,
        default=False,
        help=&quot;Install using the user scheme.&quot;,
    )
    parser.add_argument(
        &quot;--root&quot;,
        default=None,
        help=&quot;Install everything relative to this alternate root directory.&quot;,
    )
    parser.add_argument(
        &quot;--altinstall&quot;,
        action=&quot;store_true&quot;,
        default=False,
        help=(&quot;Make an alternate install, installing only the X.Y versioned &quot;
              &quot;scripts (Default: pipX, pipX.Y, easy_install-X.Y).&quot;),
    )
    parser.add_argument(
        &quot;--default-pip&quot;,
        action=&quot;store_true&quot;,
        default=False,
        help=(&quot;Make a default pip install, installing the unqualified pip &quot;
              &quot;and easy_install in addition to the versioned scripts.&quot;),
    )

    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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