uninstall.py

from __future__ import absolute_import

from pip._vendor.packaging.utils import canonicalize_name

from pip._internal.cli.base_command import Command
from pip._internal.cli.req_command import SessionCommandMixin
from pip._internal.cli.status_codes import SUCCESS
from pip._internal.exceptions import InstallationError
from pip._internal.req import parse_requirements
from pip._internal.req.constructors import (
    install_req_from_line,
    install_req_from_parsed_requirement,
)
from pip._internal.utils.misc import protect_pip_from_modification_on_windows
from pip._internal.utils.typing import MYPY_CHECK_RUNNING

if MYPY_CHECK_RUNNING:
    from optparse import Values
    from typing import List

class UninstallCommand(Command, SessionCommandMixin):
    """
    Uninstall packages.

pip is able to uninstall most installed packages. Known exceptions are:

- Pure distutils packages installed with ``python setup.py install``, which
      leave behind no metadata to determine what files were installed.
    - Script wrappers installed by ``python setup.py develop``.
    """

usage = """
      %prog [options] <package> ...
      %prog [options] -r <requirements file> ..."""

def add_options(self):
        # type: () -> None
        self.cmd_opts.add_option(
            '-r', '--requirement',
            dest='requirements',
            action='append',
            default=[],
            metavar='file',
            help='Uninstall all the packages listed in the given requirements '
                 'file.  This option can be used multiple times.',
        )
        self.cmd_opts.add_option(
            '-y', '--yes',
            dest='yes',
            action='store_true',
            help="Don't ask for confirmation of uninstall deletions.")

self.parser.insert_option_group(0, self.cmd_opts)

def run(self, options, args):
        # type: (Values, List[str]) -> int
        session = self.get_default_session(options)

reqs_to_uninstall = {}
        for name in args:
            req = install_req_from_line(
                name, isolated=options.isolated_mode,
            )
            if req.name:
                reqs_to_uninstall[canonicalize_name(req.name)] = req
        for filename in options.requirements:
            for parsed_req in parse_requirements(
                    filename,
                    options=options,
                    session=session):
                req = install_req_from_parsed_requirement(
                    parsed_req,
                    isolated=options.isolated_mode
                )
                if req.name:
                    reqs_to_uninstall[canonicalize_name(req.name)] = req
        if not reqs_to_uninstall:
            raise InstallationError(
                'You must give at least one requirement to {self.name} (see '
                '"pip help {self.name}")'.format(**locals())
            )

protect_pip_from_modification_on_windows(
            modifying_pip="pip" in reqs_to_uninstall
        )

for req in reqs_to_uninstall.values():
            uninstall_pathset = req.uninstall(
                auto_confirm=options.yes, verbose=self.verbosity > 0,
            )
            if uninstall_pathset:
                uninstall_pathset.commit()

return SUCCESS

docroot: /home/induvedam/public_html

curdir: /opt/alt/python37/lib/python3.7/site-packages/pip/_internal/commands

	.	4096
	..	4096
X	__init__.py	4100
	__pycache__	4096
X	cache.py	5676
X	check.py	1677
X	completion.py	3081
X	configuration.py	9344
X	debug.py	7314
X	download.py	4918
X	freeze.py	3452
X	hash.py	1843
X	help.py	1270
X	install.py	28727
X	list.py	11312
X	search.py	5756
X	show.py	6996
X	uninstall.py	3311
X	wheel.py	6419