[Bug 2053114] [NEW] invalid escape sequence '\%'

[Heinrich Schuchardt]

Public bug reported:

python3-distupgrade produces syntax errors:

Setting up python3-distupgrade (1:24.04.7) ...
/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeGettext.py:33: SyntaxWarning: invalid escape sequence '\%'
  arguments_in_message = message.count("%") - message.count("\%")
/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeGettext.py:34: SyntaxWarning: invalid escape sequence '\%'
  arguments_in_translation = translated.count("%") - translated.count("\%")
/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeQuirks.py:400: SyntaxWarning: invalid escape sequence '\s'
  if re.search("^cpu\s*:\s*POWER8", cpuinfo, re.MULTILINE):
/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeQuirks.py:448: SyntaxWarning: invalid escape sequence '\-'
  re.compile("ros-[^\-]+-%s" % package_name))
/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeQuirks.py:557: SyntaxWarning: invalid escape sequence '\s'
  if re.search("^Processor\s*:\s*ARMv[45]", cpuinfo,
/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeQuirks.py:642: SyntaxWarning: invalid escape sequence '\*'
  if re.search("^ \* PASS", connected[0], re.MULTILINE):
/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeQuirks.py:646: SyntaxWarning: invalid escape sequence '\*'
  elif re.search("^ \*.*unreachable", connected[0], re.MULTILINE):
/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeQuirks.py:780: SyntaxWarning: invalid escape sequence '\s'
  if re.search("^flags\s+:.* pae ", cpuinfo, re.MULTILINE):

** Affects: ubuntu-release-upgrader (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: foundations-todo

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https://bugs.launchpad.net/bugs/2053114

Title:
  invalid escape sequence '\%'

Status in ubuntu-release-upgrader package in Ubuntu:
  New

Bug description:
  python3-distupgrade produces syntax errors:

  Setting up python3-distupgrade (1:24.04.7) ...
  /usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeGettext.py:33: SyntaxWarning: invalid escape sequence '\%'
    arguments_in_message = message.count("%") - message.count("\%")
  /usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeGettext.py:34: SyntaxWarning: invalid escape sequence '\%'
    arguments_in_translation = translated.count("%") - translated.count("\%")
  /usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeQuirks.py:400: SyntaxWarning: invalid escape sequence '\s'
    if re.search("^cpu\s*:\s*POWER8", cpuinfo, re.MULTILINE):
  /usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeQuirks.py:448: SyntaxWarning: invalid escape sequence '\-'
    re.compile("ros-[^\-]+-%s" % package_name))
  /usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeQuirks.py:557: SyntaxWarning: invalid escape sequence '\s'
    if re.search("^Processor\s*:\s*ARMv[45]", cpuinfo,
  /usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeQuirks.py:642: SyntaxWarning: invalid escape sequence '\*'
    if re.search("^ \* PASS", connected[0], re.MULTILINE):
  /usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeQuirks.py:646: SyntaxWarning: invalid escape sequence '\*'
    elif re.search("^ \*.*unreachable", connected[0], re.MULTILINE):
  /usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeQuirks.py:780: SyntaxWarning: invalid escape sequence '\s'
    if re.search("^flags\s+:.* pae ", cpuinfo, re.MULTILINE):

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