comefrom: <qiyuangong>008_String_to_Integer(atoi)_2.py
code: def myAtoi( s):
      try:
          s = s.lstrip() + '$' 
          for i, ch in enumerate(s):
              if not (ch in '+-' or '0' <= ch <= '9'):
                  result = int(s[:i])
                  return -2 ** 31 if result < -2 ** 31 else 2 ** 31 - 1 if result > 2 ** 31 - 1 else result
      except:
          return 0
masked: def sample_funcname ( var_0 ) :
      try :
          var_0 = var_0.lstrip ( ) + '$'
          for var_4 , var_5 in enumerate ( var_0 ) :
              if not ( var_5 in '+-' or '0' <= var_5 <= '9' ) :
                  var_10 = int ( var_0 [ : var_4 ] )
                  return - 2 ** 31 if var_10 < - 2 ** 31 else 2 ** 31 - 1 if var_10 > 2 ** 31 - 1 else var_10
      except :
          return 0
  