[Bug 2059412] Re: SyntaxWarning: invalid escape sequence '\.'

[Launchpad Bug Tracker]

This bug was fixed in the package software-properties - 0.99.48

---------------
software-properties (0.99.48) noble; urgency=medium

  * Fix Python's warning of invalid escape sequence (LP: #2059412).
  * Make pressing enter on close button of out-of-date cache dialog trigger
    the close button, not the reload button (LP: #2061978).
  * Limit the comments in 'other software' tab to a single line (LP: #2060915).
  * apt-add-repository --list now displays deb822 sources (LP: #2060331).

 -- Nathan Pratta Teodosio <nathan.teodosio at canonical.com>  Thu, 18 Apr
2024 09:17:51 +0200

** Changed in: software-properties (Ubuntu)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/2059412

Title:
  SyntaxWarning: invalid escape sequence '\.'

Status in software-properties package in Ubuntu:
  Fix Released

Bug description:
  Installing software-properties gives

  --->
  /usr/lib/python3/dist-packages/softwareproperties/gtk/DialogMirror.py:197: SyntaxWarning: invalid escape sequence '\.'
    elif re.match("^((ftp)|(http)|(file)|(rsync)|(https))://([a-z]|[A-Z]|[0-9]|:|/|\.|~)+$", uri) == None:
  <---

  Marked as "wishlist" importance because Python still passes that to
  re.match as '\.' instead of '.', so the behavior is correct, as can be
  confirmed with

  --->
  % python3 -c 'print("\.")'
  <string>:1: SyntaxWarning: invalid escape sequence '\.'
  \.
  <---

  In a future Python version they will be eventually a SyntaxError[1].

  [1] https://docs.python.org/3/reference/lexical_analysis.html#escape-
  sequences

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