After last update python-pip broken

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1

Someone can help me? after last system upgrade, python-pip is broken in my PC.

I issue sudo pacman -Rns python-pip and sudo pacman -S python-pip without success

Traceback (most recent call last):
  File "/usr/bin/pip", line 33, in <module>
    sys.exit(load_entry_point('pip==20.3.4', 'console_scripts', 'pip')())
  File "/usr/bin/pip", line 25, in importlib_load_entry_point
    return next(matches).load()
  File "/usr/lib/python3.9/importlib/metadata.py", line 77, in load
    module = import_module(match.group('module'))
  File "/usr/lib/python3.9/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
  File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 850, in exec_module
  File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
  File "/usr/lib/python3.9/site-packages/pip/_internal/cli/main.py", line 10, in <module>
    from pip._internal.cli.autocompletion import autocomplete
  File "/usr/lib/python3.9/site-packages/pip/_internal/cli/autocompletion.py", line 9, in <module>
    from pip._internal.cli.main_parser import create_main_parser
  File "/usr/lib/python3.9/site-packages/pip/_internal/cli/main_parser.py", line 7, in <module>
    from pip._internal.cli import cmdoptions
  File "/usr/lib/python3.9/site-packages/pip/_internal/cli/cmdoptions.py", line 25, in <module>
    from pip._internal.cli.progress_bars import BAR_TYPES
  File "/usr/lib/python3.9/site-packages/pip/_internal/cli/progress_bars.py", line 12, in <module>
    from pip._internal.utils.logging import get_indentation
  File "/usr/lib/python3.9/site-packages/pip/_internal/utils/logging.py", line 18, in <module>
    from pip._internal.utils.misc import ensure_dir
  File "/usr/lib/python3.9/site-packages/pip/_internal/utils/misc.py", line 34, in <module>
    from pip._internal.locations import get_major_minor_version, site_packages, user_site
  File "/usr/lib/python3.9/site-packages/pip/_internal/locations/__init__.py", line 9, in <module>
    from . import _distutils, _sysconfig
  File "/usr/lib/python3.9/site-packages/pip/_internal/locations/_sysconfig.py", line 8, in <module>
    from pip._internal.exceptions import InvalidSchemeCombination, UserInstallationInvalid
ImportError: cannot import name 'InvalidSchemeCombination' from 'pip._internal.exceptions' (/usr/lib/python3.9/site-packages/pip/_internal/exceptions.py)
2

I wonder why the pip package is in the repos in the first place. It is a package manager which (usually) installs global packages and most likely will break all your system packages that rely on Python.

I recommend using Virtual Environments.

3

I can’t reproduce the issue.

It’s needed for building some packages and a dependency for others. See the Required By column here.

4

I seem to have a similar issue. After experiencing same error as @sharkguto, I reinstalled the pip package and now I’m stuck with this error:

File "/usr/bin/pip3", line 33, in <module>
  sys.exit(load_entry_point('pip==20.3.4', 'console_scripts', 'pip3')())
File "/usr/bin/pip3", line 25, in importlib_load_entry_point
  return next(matches).load()
File "/usr/lib/python3.9/importlib/metadata.py", line 77, in load
  module = import_module(match.group('module'))
File "/usr/lib/python3.9/importlib/__init__.py", line 127, in import_module
  return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 850, in exec_module
File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
File "/usr/lib/python3.9/site-packages/pip/_internal/cli/main.py", line 10, in <module>
  from pip._internal.cli.autocompletion import autocomplete
File "/usr/lib/python3.9/site-packages/pip/_internal/cli/autocompletion.py", line 9, in <module>
  from pip._internal.cli.main_parser import create_main_parser
File "/usr/lib/python3.9/site-packages/pip/_internal/cli/main_parser.py", line 7, in <module>
  from pip._internal.cli import cmdoptions
File "/usr/lib/python3.9/site-packages/pip/_internal/cli/cmdoptions.py", line 23, in <module>
  from pip._vendor.packaging.utils import canonicalize_name
ModuleNotFoundError: No module named 'pip._vendor.packaging'
5

I don’t know if you ever got this figured out, but if not I just had a similar issue. The solution that worked for me can be found here.

6

Thanks Jackson! I didn’t manually delete any files, but I uninstalled pip-tools and tried reinstalling, same problem. So, I ran ‘sudo paccache -r’ then reinstalled and everything works.