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from __future__ import absolute_import |
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from pip._vendor.packaging.utils import canonicalize_name |
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from pip._internal.cli.base_command import Command |
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from pip._internal.cli.req_command import SessionCommandMixin |
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from pip._internal.cli.status_codes import SUCCESS |
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from pip._internal.exceptions import InstallationError |
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from pip._internal.req import parse_requirements |
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from pip._internal.req.constructors import ( |
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install_req_from_line, |
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install_req_from_parsed_requirement, |
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) |
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from pip._internal.utils.misc import protect_pip_from_modification_on_windows |
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from pip._internal.utils.typing import MYPY_CHECK_RUNNING |
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if MYPY_CHECK_RUNNING: |
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from optparse import Values |
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from typing import List |
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class UninstallCommand(Command, SessionCommandMixin): |
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""" |
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Uninstall packages. |
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pip is able to uninstall most installed packages. Known exceptions are: |
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- Pure distutils packages installed with ``python setup.py install``, which |
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leave behind no metadata to determine what files were installed. |
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- Script wrappers installed by ``python setup.py develop``. |
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""" |
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usage = """ |
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%prog [options] <package> ... |
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%prog [options] -r <requirements file> ...""" |
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def add_options(self): |
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self.cmd_opts.add_option( |
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'-r', '--requirement', |
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dest='requirements', |
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action='append', |
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default=[], |
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metavar='file', |
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help='Uninstall all the packages listed in the given requirements ' |
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'file. This option can be used multiple times.', |
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) |
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self.cmd_opts.add_option( |
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'-y', '--yes', |
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dest='yes', |
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action='store_true', |
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help="Don't ask for confirmation of uninstall deletions.") |
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self.parser.insert_option_group(0, self.cmd_opts) |
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def run(self, options, args): |
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session = self.get_default_session(options) |
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reqs_to_uninstall = {} |
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for name in args: |
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req = install_req_from_line( |
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name, isolated=options.isolated_mode, |
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) |
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if req.name: |
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reqs_to_uninstall[canonicalize_name(req.name)] = req |
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for filename in options.requirements: |
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for parsed_req in parse_requirements( |
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filename, |
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options=options, |
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session=session): |
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req = install_req_from_parsed_requirement( |
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parsed_req, |
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isolated=options.isolated_mode |
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) |
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if req.name: |
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reqs_to_uninstall[canonicalize_name(req.name)] = req |
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if not reqs_to_uninstall: |
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raise InstallationError( |
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'You must give at least one requirement to {self.name} (see ' |
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'"pip help {self.name}")'.format(**locals()) |
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) |
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protect_pip_from_modification_on_windows( |
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modifying_pip="pip" in reqs_to_uninstall |
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) |
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for req in reqs_to_uninstall.values(): |
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uninstall_pathset = req.uninstall( |
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auto_confirm=options.yes, verbose=self.verbosity > 0, |
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) |
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if uninstall_pathset: |
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uninstall_pathset.commit() |
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return SUCCESS |
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