SyntaxWarnings in checkrestart

[James Howe]

After upgrading from 22.04 to 24.04, checkrestart now logs the following on every invocation:

/usr/sbin/checkrestart:222: SyntaxWarning: invalid escape sequence '\S'
  m = re.match('^diversion by (\S+) (from|to): (.*)$', line)
/usr/sbin/checkrestart:398: SyntaxWarning: invalid escape sequence '\('
  if re.compile("DEL").search(last) or re.compile("\(deleted\)").search(data) or re.compile("\(path inode=[0-9]+\)$").search(data):
/usr/sbin/checkrestart:398: SyntaxWarning: invalid escape sequence '\('
  if re.compile("DEL").search(last) or re.compile("\(deleted\)").search(data) or re.compile("\(path inode=[0-9]+\)$").search(data):
/usr/sbin/checkrestart:430: SyntaxWarning: invalid escape sequence '\s'
  if re.compile("\s\(deleted\)$").search(fname):
/usr/sbin/checkrestart:437: SyntaxWarning: invalid escape sequence '\s'
  data = re.split('\s+', output.strip('\n'), 3)
/usr/sbin/checkrestart:440: SyntaxWarning: invalid escape sequence '\s'
  if re.compile("\s\(deleted\)$").search(f):
/usr/sbin/checkrestart:464: SyntaxWarning: invalid escape sequence '\.'
  if ( f.startswith('/lib/') or f.startswith('/usr/lib/') ) and re.compile("\.so[\d.]+$"):
/usr/sbin/checkrestart:468: SyntaxWarning: invalid escape sequence '\+'
  f = re.compile("\+").sub("\+", f)
/usr/sbin/checkrestart:468: SyntaxWarning: invalid escape sequence '\+'
  f = re.compile("\+").sub("\+", f)
/usr/sbin/checkrestart:469: SyntaxWarning: invalid escape sequence '\d'
  f = re.compile(".so[\d.]+$").sub(".so.*", f)
/usr/sbin/checkrestart:470: SyntaxWarning: invalid escape sequence '\.'
  f = re.compile("\.").sub("\.", f)
/usr/sbin/checkrestart:470: SyntaxWarning: invalid escape sequence '\.'
  f = re.compile("\.").sub("\.", f)
/usr/sbin/checkrestart:594: SyntaxWarning: invalid escape sequence '\('
  if re.compile("\(path inode=[0-9]+\)$").search(f):
/usr/sbin/checkrestart:651: SyntaxWarning: invalid escape sequence '\d'
  re_uids = re.compile('Uid:\t(\d+)\t(\d+)\t(\d+)\t(\d+)$')
/usr/sbin/checkrestart:764: SyntaxWarning: invalid escape sequence '\('
  return re.sub('( \(deleted\)|.dpkg-new).*$','',f)

ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: debian-goodies 0.88.1ubuntu1
ProcVersionSignature: Ubuntu 6.8.0-45.45-generic 6.8.12
Uname: Linux 6.8.0-45-generic x86_64
ApportVersion: 2.28.1-0ubuntu3.1
Architecture: amd64
CasperMD5CheckResult: unknown
Date: Tue Oct 1 14:37:36 2024
PackageArchitecture: all
SourcePackage: debian-goodies
UpgradeStatus: Upgraded to noble on 2024-09-30 (1 days ago)