Invalid escape sequences in regexes

[douglas-raillard-arm]

Describe the issue

WA seems to contain a fair amount of invalid escape sequences in its regexes, as can be see from wa --help output on Python 3.12, e.g.:

workload-automation/wa/utils/types.py:62: SyntaxWarning: invalid escape sequence '\ '

Run Log

/home/dourai01/Work/projects/workload-automation/wa/utils/types.py:62: SyntaxWarning: invalid escape sequence '\ '
  """
/home/dourai01/Work/projects/workload-automation/wa/utils/types.py:75: SyntaxWarning: invalid escape sequence '\ '
  """
/home/dourai01/Work/projects/workload-automation/wa/utils/types.py:86: SyntaxWarning: invalid escape sequence '\ '
  """
/home/dourai01/Work/projects/workload-automation/wa/utils/misc.py:254: SyntaxWarning: invalid escape sequence '\['
  _bash_color_regex = re.compile('\x1b\[[0-9;]+m')
/home/dourai01/Work/projects/workload-automation/wa/framework/plugin.py:38: SyntaxWarning: invalid escape sequence '\ '
  """
/home/dourai01/Work/projects/workload-automation/wa/framework/plugin.py:274: SyntaxWarning: invalid escape sequence '\ '
  """
/home/dourai01/Work/projects/workload-automation/wa/utils/serializer.py:16: SyntaxWarning: invalid escape sequence '\ '
  """
/home/dourai01/Work/projects/workload-automation/wa/framework/target/descriptor.py:683: SyntaxWarning: invalid escape sequence '\ '
  description = """
/home/dourai01/Work/projects/workload-automation/wa/instruments/perf.py:105: SyntaxWarning: invalid escape sequence '\ '
  description="""Provides labels for perf/simpleperf output for each optionstring.
/home/dourai01/Work/projects/workload-automation/wa/workloads/chrome/__init__.py:54: SyntaxWarning: invalid escape sequence '\*'
  Parameter('offline_mode', kind=bool, default=False, description='''
/home/dourai01/Work/projects/workload-automation/wa/workloads/chrome/__init__.py:86: SyntaxWarning: invalid escape sequence '\ '
  offline_pages = self.target.path.join(self.target.package_data_directory, self.package, 'app_chrome', 'Default', 'Offline\ Pages')
/home/dourai01/Work/projects/workload-automation/wa/workloads/exoplayer/__init__.py:40: SyntaxWarning: invalid escape sequence '\['
  'duration': '.*period \[(?P<duration>[0-9]+.*)\]',
/home/dourai01/Work/projects/workload-automation/wa/workloads/exoplayer/__init__.py:41: SyntaxWarning: invalid escape sequence '\['
  'end': '.*state \[.+, .+, E\]',
/home/dourai01/Work/projects/workload-automation/wa/workloads/exoplayer/__init__.py:42: SyntaxWarning: invalid escape sequence '\['
  'dropped_frames': '.*droppedFrames \[(?P<session_time>[0-9]+\.[0-9]+), (?P<count>[0-9]+)\]'
/home/dourai01/Work/projects/workload-automation/wa/workloads/geekbench/__init__.py:293: SyntaxWarning: invalid escape sequence '\-'
  """
/home/dourai01/Work/projects/workload-automation/wa/workloads/gfxbench/__init__.py:28: SyntaxWarning: invalid escape sequence '\('
  regex_template = 'name: \((?P<test_name>.*)\).*result: \((?P<result>.*)?\).* sub_result:.*\((?P<sub_result>.*?)?\).*'
/home/dourai01/Work/projects/workload-automation/wa/workloads/memcpy/__init__.py:29: SyntaxWarning: invalid escape sequence '\d'
  RESULT_REGEX = re.compile('Total time: ([\d.]+) s.*Bandwidth: ([\d.]+) MB/s', re.S)
/home/dourai01/Work/projects/workload-automation/wa/workloads/recentfling/__init__.py:104: SyntaxWarning: invalid escape sequence '\d'
  p = re.compile("Frames: \d+ latency: (?P<pct90>\d+)/(?P<pct95>\d+)/(?P<pct99>\d+) Janks: (?P<jank>\d+)\((?P<jank_pct>\d+)%\)")
/home/dourai01/Work/projects/workload-automation/wa/workloads/speedometer/__init__.py:109: SyntaxWarning: invalid escape sequence '\d'
  '(?:text|content-desc)="(?P<value>\d+.\d+)"[^>]*'
/home/dourai01/Work/projects/workload-automation/wa/workloads/speedometer/__init__.py:110: SyntaxWarning: invalid escape sequence '\/'
  '(?(Z)|resource-id="result-number")[^>]*\/>'
/home/dourai01/Work/projects/workload-automation/wa/workloads/vellamo/__init__.py:149: SyntaxWarning: invalid escape sequence '\d'
  iteration_result_regex = re.compile("VELLAMO RESULT: (Browser|Metal|Multicore) (\d+)")