Mercurial > repos > guerler > hhblits
diff lib/python3.8/site-packages/pip/_internal/commands/uninstall.py @ 0:9e54283cc701 draft
"planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
author | guerler |
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date | Mon, 27 Jul 2020 03:47:31 -0400 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/lib/python3.8/site-packages/pip/_internal/commands/uninstall.py Mon Jul 27 03:47:31 2020 -0400 @@ -0,0 +1,82 @@ +# The following comment should be removed at some point in the future. +# mypy: disallow-untyped-defs=False + +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.exceptions import InstallationError +from pip._internal.req import parse_requirements +from pip._internal.req.constructors import install_req_from_line +from pip._internal.utils.misc import protect_pip_from_modification_on_windows + + +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 __init__(self, *args, **kw): + super(UninstallCommand, self).__init__(*args, **kw) + 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): + 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 req in parse_requirements( + filename, + options=options, + session=session): + 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 %(name)s (see ' + '"pip help %(name)s")' % dict(name=self.name) + ) + + 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()