[Bug 1921515] Re: `SyntaxError` when byte-compiling during `do-release-upgrade` to hirsute

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: software-properties (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1921515

Title:
  `SyntaxError` when byte-compiling during `do-release-upgrade` to
  hirsute

Status in software-properties package in Ubuntu:
  Confirmed

Bug description:
  When performing a `do-release-upgrade -d` on my groovy system, I saw:

  Setting up python3-software-properties (0.99.8) ...
  Failed to byte-compile /usr/lib/python3/dist-packages/softwareproperties/extendedsourceslist.py:   File "/usr/lib/python3/dist-packages/softwareproperties/extendedsourceslist.py", line 436
      def __init__(self, sourceslist=None, /, files=None):
                                           ^
  SyntaxError: invalid syntax (expected ')')

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