[Regression]: InvalidVersion since 22.0

[mexicarne]

Something about version parse was broken in 22.0. Here is the code for reproducing the issue:

from packaging.version import parse
print(parse("6.7.8.9-10.el7"))

packaging 21.3 prints:

6.7.8.9-10.el7

while packaging starting with 22.0 raises an exception:

Traceback (most recent call last):
  File "/tmp/pp/test.py", line 5, in <module>
    print(parse("6.7.8.9-10.el7"))
          ^^^^^^^^^^^^^^^^^^^^^^^
  File "/tmp/pp/lib/python3.11/site-packages/packaging/version.py", line 54, in parse
    return Version(version)
           ^^^^^^^^^^^^^^^^
  File "/tmp/pp/lib/python3.11/site-packages/packaging/version.py", line 200, in __init__
    raise InvalidVersion(f"Invalid version: '{version}'")
packaging.version.InvalidVersion: Invalid version: '6.7.8.9-10.el7'

[mexicarne]

Ok, I compared the changes and it looks like it's not a regression, but rather planned removal of the LegacyVersional. Is there different way to handle the issue except the sticking to 21.3 in my project?

[pradyunsg]

Duplicate of #530

Please see the discussion on that issue - it mentions packvers (GitHub seemingly hides it since there's so many back references).