Deprecation warning due to invalid escape sequences

[tirkarthi]

Deprecation warnings are raised due to invalid escape sequences. This can be fixed by using raw strings or escaping the literals. pyupgrade also helps in automatic conversion : https://github.com/asottile/pyupgrade/

find . -iname '*.py' | xargs -P4 -I{} python3.8 -Wall -m py_compile {}
./lib/jnpr/junos/factory/optable.py:24: DeprecationWarning: invalid escape sequence \*
  """
./lib/jnpr/junos/factory/cmdtable.py:49: DeprecationWarning: invalid escape sequence \*
  """
./lib/jnpr/junos/factory/state_machine.py:242: DeprecationWarning: invalid escape sequence \s
  delimiter = self._table.DELIMITER or '\s\s+'
./lib/jnpr/junos/factory/state_machine.py:247: DeprecationWarning: invalid escape sequence \s
  if re.match(pre_space_delimit + '\s+', line):
./lib/jnpr/junos/factory/state_machine.py:256: DeprecationWarning: invalid escape sequence \d
  regex = '(\d+)\s(.*)' if item_types[
./lib/jnpr/junos/factory/state_machine.py:258: DeprecationWarning: invalid escape sequence \s
  '.*)\s(\d+)'
./lib/jnpr/junos/factory/state_machine.py:396: DeprecationWarning: invalid escape sequence \s
  items = re.split('\s\s+', self._lines[1].strip())
./lib/jnpr/junos/factory/state_machine.py:404: DeprecationWarning: invalid escape sequence \s
  items = re.split('\s\s+', line.strip())
./lib/jnpr/junos/factory/state_machine.py:521: DeprecationWarning: invalid escape sequence \s
  items = re.split('\s\s+', line.strip())
./lib/jnpr/junos/factory/state_machine.py:552: DeprecationWarning: invalid escape sequence \s
  obj = re.search('(\s+).*', line)
./lib/jnpr/junos/factory/state_machine.py:633: DeprecationWarning: invalid escape sequence \s
  delimiter = self._table.DELIMITER or '\s\s+'
./lib/jnpr/junos/factory/state_machine.py:636: DeprecationWarning: invalid escape sequence \s
  if re.match(pre_space_delimit + '\s+', line):
./lib/jnpr/junos/factory/state_machine.py:650: DeprecationWarning: invalid escape sequence \d
  regex = '(\d+)\s(.*)' if item_types[0] == int else '(' \
./lib/jnpr/junos/factory/state_machine.py:651: DeprecationWarning: invalid escape sequence \s
  '.*)\s(\d+)'
./lib/jnpr/junos/factory/state_machine.py:665: DeprecationWarning: invalid escape sequence \d
  """
./lib/jnpr/junos/factory/state_machine.py:748: DeprecationWarning: invalid escape sequence \s
  """
./lib/jnpr/junos/factory/state_machine.py:854: DeprecationWarning: invalid escape sequence \s
  delimiter = self._table.DELIMITER or '\s\s+'
./lib/jnpr/junos/factory/state_machine.py:862: DeprecationWarning: invalid escape sequence \s
  obj = re.search('^(\s+).*', self._lines[1])
./lib/jnpr/junos/factory/state_machine.py:914: DeprecationWarning: invalid escape sequence \s
  """
./lib/jnpr/junos/ofacts/routing_engines.py:70: DeprecationWarning: invalid escape sequence \d
  m = RE.search('(\d)', x_re_name[0].text)
./lib/jnpr/junos/ofacts/personality.py:12: DeprecationWarning: invalid escape sequence \d
  if re.match("^RE\d", fact):
./lib/jnpr/junos/ofacts/personality.py:39: DeprecationWarning: invalid escape sequence \s
  elif re.match("SRX\s?(\d){3}", examine):
./lib/jnpr/junos/ofacts/personality.py:37: DeprecationWarning: invalid escape sequence \s
  elif re.match("SRX\s?(\d){4}", examine):
./lib/jnpr/junos/exception.py:312: DeprecationWarning: invalid escape sequence \d
  obj = re.search('line (\d+)', self.ex_msg)
./lib/jnpr/junos/rpcmeta.py:145: SyntaxWarning: "is not" with a literal. Did you mean "!="?
  if model and filter_xml is None and options.get('format') \
./lib/jnpr/junos/device.py:393: DeprecationWarning: invalid escape sequence \d
  match = re.search('^re\d+$', re_state)
./lib/jnpr/junos/device.py:843: DeprecationWarning: invalid escape sequence \s
  re.sub('\s?{\s?}\s?', '', rpc_rsp_e.text))
./lib/jnpr/junos/device.py:869: SyntaxWarning: "is not" with a literal. Did you mean "!="?
  if rpc_rsp_e.text is not None and rpc_rsp_e.text.strip() is not '':
./lib/jnpr/junos/device.py:1276: SyntaxWarning: "is not" with a literal. Did you mean "!="?
  if auto_probe is not 0:
./lib/jnpr/junos/utils/sw.py:104: DeprecationWarning: invalid escape sequence \*
  """
./lib/jnpr/junos/utils/sw.py:117: DeprecationWarning: invalid escape sequence \*
  """
./lib/jnpr/junos/utils/sw.py:130: DeprecationWarning: invalid escape sequence \*
  """
./lib/jnpr/junos/utils/sw.py:143: DeprecationWarning: invalid escape sequence \*
  """
./lib/jnpr/junos/utils/sw.py:924: DeprecationWarning: invalid escape sequence \d
  '(\d+)',
./lib/jnpr/junos/utils/sw.py:1035: SyntaxWarning: "is not" with a literal. Did you mean "!="?
  if output_msg is not '':
./lib/jnpr/junos/utils/start_shell.py:7: DeprecationWarning: invalid escape sequence \$
  _SHELL_PROMPT = '(%|#|\$)\s'
./lib/jnpr/junos/utils/start_shell.py:137: SyntaxWarning: "is not" with a literal. Did you mean "!="?
  self.last_ok = got is not ''
./lib/jnpr/junos/utils/ftp.py:61: DeprecationWarning: invalid escape sequence \.
  re.search('\.\w+$', remote_path):
./lib/jnpr/junos/utils/config.py:459: DeprecationWarning: invalid escape sequence \s
  '|annotate|copy|protect|unprotect)\s', rpc):
./lib/jnpr/junos/transport/tty.py:46: DeprecationWarning: invalid escape sequence \s
  _re_pat_login = '(?P<login>ogin:\s*$)'
./lib/jnpr/junos/transport/tty.py:49: DeprecationWarning: invalid escape sequence \s
  '(?P<loader>oader>\s*$)',
./lib/jnpr/junos/transport/tty.py:51: DeprecationWarning: invalid escape sequence \s
  '(?P<passwd>assword:\s*$)',
./lib/jnpr/junos/transport/tty.py:53: DeprecationWarning: invalid escape sequence \s
  '(?P<netconf_closed><!-- session end at .*-->\s*)',
./lib/jnpr/junos/transport/tty.py:54: DeprecationWarning: invalid escape sequence \$
  '(?P<shell>%|#|(~\$)\s*$)',
./lib/jnpr/junos/transport/tty.py:55: DeprecationWarning: invalid escape sequence \s
  '(?P<cli>[^\\-"]>\s*$)',
./lib/jnpr/junos/transport/tty.py:56: DeprecationWarning: invalid escape sequence \s
  '(?P<option>Enter your option:\s*$)',
./lib/jnpr/junos/facts/personality.py:74: DeprecationWarning: invalid escape sequence \s
  elif re.match('SRX\s?(\d){3}', model):
./lib/jnpr/junos/facts/personality.py:67: DeprecationWarning: invalid escape sequence \s
  elif re.match('SRX\s?(\d){4}', model):
./lib/jnpr/junos/facts/swver.py:17: DeprecationWarning: invalid escape sequence \d
  xm = re.match("(\d+)-(\w)(\d+)", self.minor)
./tests/unit/factory/test_cmdtable.py:293: DeprecationWarning: invalid escape sequence \[
  yaml_data = """
./tests/unit/factory/test_cmdtable.py:371: DeprecationWarning: invalid escape sequence \s
  yaml_data = """
./tests/unit/factory/test_cmdtable.py:544: DeprecationWarning: invalid escape sequence \w
  yaml_data = """
./tests/unit/factory/test_cmdtable.py:721: DeprecationWarning: invalid escape sequence \d
  yaml_data = """
./tests/unit/factory/test_cmdtable.py:758: DeprecationWarning: invalid escape sequence \d
  yaml_data = """
./tests/unit/factory/test_cmdtable.py:839: DeprecationWarning: invalid escape sequence \d
  yaml_data = """
./tests/unit/factory/test_cmdtable.py:933: DeprecationWarning: invalid escape sequence \d
  yaml_data = """
./tests/unit/factory/test_cmdtable.py:1013: DeprecationWarning: invalid escape sequence \.
  yaml_data = """
./tests/unit/factory/test_cmdtable.py:1106: DeprecationWarning: invalid escape sequence \.
  yaml_data = """
./tests/unit/factory/test_cmdtable.py:1139: DeprecationWarning: invalid escape sequence \d
  yaml_data = """
./tests/unit/factory/test_cmdtable.py:1352: DeprecationWarning: invalid escape sequence \d
  yaml_data = """
./tests/unit/factory/test_cmdtable.py:1417: DeprecationWarning: invalid escape sequence \d
  yaml_data = """
./tests/unit/factory/test_cmdtable.py:1945: DeprecationWarning: invalid escape sequence \d
  yaml_data = """
./tests/unit/test_console.py:31: DeprecationWarning: invalid escape sequence \s
  mock_expect.side_effect = [(1, re.search('(?P<login>ogin:\s*$)',
./tests/unit/test_console.py:34: DeprecationWarning: invalid escape sequence \s
  (2, re.search('(?P<passwd>assword:\s*$)',
./tests/unit/test_console.py:37: DeprecationWarning: invalid escape sequence \s
  (3, re.search('(?P<shell>%|#\s*$)',
./tests/unit/test_console.py:77: DeprecationWarning: invalid escape sequence \s
  re.search('(?P<login>ogin:\s*$)',
./tests/unit/test_console.py:81: DeprecationWarning: invalid escape sequence \s
  re.search('(?P<passwd>assword:\s*$)',
./tests/unit/test_console.py:103: DeprecationWarning: invalid escape sequence \s
  mock_expect.side_effect = [(1, re.search('(?P<login>ogin:\s*$)',
./tests/unit/test_console.py:107: DeprecationWarning: invalid escape sequence \s
  re.search('(?P<passwd>assword:\s*$)',
./tests/unit/test_console.py:110: DeprecationWarning: invalid escape sequence \s
  (3, re.search('(?P<shell>%|#\s*$)',
./tests/unit/utils/test_start_shell.py:74: DeprecationWarning: invalid escape sequence \(
  self.assertTrue(self.shell.wait_for('---\(more\s?\d*%?\)---\n\s*|%')[0]
./tests/unit/utils/test_start_shell.py:95: DeprecationWarning: invalid escape sequence \(
  '---\(more\s?\d*%?\)---\n\s*|%')[0])
./tests/unit/test_rpcmeta.py:221: DeprecationWarning: invalid escape sequence \(
  "Expecting \'?,\'? delimiter: line 17 column 39 \(char 516\)",

[chidanandpujar]

Fixed compilation errors issue#1034 #1169
Except one issue ./junos/transport/tty.py:56,
find . -iname '.py' | xargs -P4 -I{} python3.9 -Wall -m py_compile {}
./junos/transport/tty.py:56: DeprecationWarning: invalid escape sequence \s
'(?P[^\\-"]>\s$)',