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annotate lib/python3.8/site-packages/pip/_internal/commands/uninstall.py @ 0:9e54283cc701 draft

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"planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
author guerler
date Mon, 27 Jul 2020 03:47:31 -0400
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1 # The following comment should be removed at some point in the future.
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2 # mypy: disallow-untyped-defs=False
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3
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4 from __future__ import absolute_import
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5
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6 from pip._vendor.packaging.utils import canonicalize_name
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7
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8 from pip._internal.cli.base_command import Command
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9 from pip._internal.cli.req_command import SessionCommandMixin
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10 from pip._internal.exceptions import InstallationError
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11 from pip._internal.req import parse_requirements
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12 from pip._internal.req.constructors import install_req_from_line
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13 from pip._internal.utils.misc import protect_pip_from_modification_on_windows
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14
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15
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16 class UninstallCommand(Command, SessionCommandMixin):
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17 """
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18 Uninstall packages.
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19
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20 pip is able to uninstall most installed packages. Known exceptions are:
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21
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22 - Pure distutils packages installed with ``python setup.py install``, which
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23 leave behind no metadata to determine what files were installed.
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24 - Script wrappers installed by ``python setup.py develop``.
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25 """
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26
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27 usage = """
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28 %prog [options] <package> ...
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29 %prog [options] -r <requirements file> ..."""
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30
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31 def __init__(self, *args, **kw):
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32 super(UninstallCommand, self).__init__(*args, **kw)
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33 self.cmd_opts.add_option(
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34 '-r', '--requirement',
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35 dest='requirements',
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36 action='append',
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37 default=[],
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38 metavar='file',
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39 help='Uninstall all the packages listed in the given requirements '
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40 'file. This option can be used multiple times.',
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41 )
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42 self.cmd_opts.add_option(
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43 '-y', '--yes',
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44 dest='yes',
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45 action='store_true',
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46 help="Don't ask for confirmation of uninstall deletions.")
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47
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48 self.parser.insert_option_group(0, self.cmd_opts)
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49
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50 def run(self, options, args):
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51 session = self.get_default_session(options)
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52
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53 reqs_to_uninstall = {}
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54 for name in args:
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55 req = install_req_from_line(
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56 name, isolated=options.isolated_mode,
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57 )
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58 if req.name:
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59 reqs_to_uninstall[canonicalize_name(req.name)] = req
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60 for filename in options.requirements:
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61 for req in parse_requirements(
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62 filename,
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63 options=options,
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64 session=session):
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65 if req.name:
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66 reqs_to_uninstall[canonicalize_name(req.name)] = req
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67 if not reqs_to_uninstall:
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68 raise InstallationError(
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69 'You must give at least one requirement to %(name)s (see '
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70 '"pip help %(name)s")' % dict(name=self.name)
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71 )
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72
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73 protect_pip_from_modification_on_windows(
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74 modifying_pip="pip" in reqs_to_uninstall
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75 )
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76
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77 for req in reqs_to_uninstall.values():
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78 uninstall_pathset = req.uninstall(
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79 auto_confirm=options.yes, verbose=self.verbosity > 0,
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80 )
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81 if uninstall_pathset:
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82 uninstall_pathset.commit()