Import module and string formatting error

[paulsbond]

Describe the bug
When using pip I see the a keyring error before anything happens, e.g.

$ python3 -m pip list | grep keyring
Keyring is skipped due to an exception: not all arguments converted during string formatting
keyring               19.3.0              
keyrings.alt          3.0

The error disappears if I remove the keyring package.
Using keyring gives more details of the error:

$ keyring --list-backends
Traceback (most recent call last):
  File "/home/paul/.local/lib/python3.6/site-packages/keyring/backend.py", line 203, in _load_plugins
    init_func = ep.load()
  File "/home/paul/.local/lib/python3.6/site-packages/importlib_metadata/__init__.py", line 92, in load
    module = import_module(match.group('module'))
  File "/usr/lib/python3.6/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 994, in _gcd_import
  File "<frozen importlib._bootstrap>", line 971, in _find_and_load
  File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/usr/lib/python3/dist-packages/keyrings/alt/Windows.py", line 9, in <module>
    from . import file_base
  File "/usr/lib/python3/dist-packages/keyrings/alt/file_base.py", line 13, in <module>
    from keyring.util.escape import escape as escape_for_ini
ModuleNotFoundError: No module named 'keyring.util.escape'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/paul/.local/bin/keyring", line 5, in <module>
    from keyring.cli import main
  File "/home/paul/.local/lib/python3.6/site-packages/keyring/__init__.py", line 1, in <module>
    from .core import (
  File "/home/paul/.local/lib/python3.6/site-packages/keyring/core.py", line 192, in <module>
    init_backend()
  File "/home/paul/.local/lib/python3.6/site-packages/keyring/core.py", line 96, in init_backend
    filter(limit, backend.get_all_keyring()),
  File "/home/paul/.local/lib/python3.6/site-packages/keyring/util/__init__.py", line 22, in wrapper
    func.always_returns = func(*args, **kwargs)
  File "/home/paul/.local/lib/python3.6/site-packages/keyring/backend.py", line 216, in get_all_keyring
    _load_plugins()
  File "/home/paul/.local/lib/python3.6/site-packages/keyring/backend.py", line 207, in _load_plugins
    log.exception("Error initializing plugin %s." % ep)
TypeError: not all arguments converted during string formatting

Environment

• Python 3.6.9
• OS: Ubuntu 18.04

[jaraco]

The error about No module named 'keyring.util.escape' was fixed in keyrings.alt 3.1, so you either need to upgrade keyrings.alt to 3.1 or later or downgrade keyring to a version that still supplies the util.escape behavior. I'm less sure about what the TypeError is about, but I suspect it has something to do with the fact that the ep didn't load properly.

[jyn514]

I had this error because of a globally installed keyrings.alt package. Running sudo apt autoremove python3-keyrings.alt fixed the issue.

[paulsbond]

Upgrading keyrings.alt fixed the issue for me:

$ python3 -m pip install --user --upgrade keyrings.alt
$ python3 -m pip list | grep keyring
keyring               19.3.0             
keyrings.alt          3.4.0
$ keyring --list-backends
keyrings.alt.file.EncryptedKeyring (priority: 0.6)
keyring.backends.SecretService.Keyring (priority: 5)
keyring.backends.fail.Keyring (priority: 0)
keyring.backends.chainer.ChainerBackend (priority: 10)
keyrings.alt.file.PlaintextKeyring (priority: 0.5)