old_contents: from .lexerconstants import *
  from .ws_token import Tokeniser
  from .debug import Debug as dbg
  
  
  class IntError(ValueError):
      '''Exception when invalid integer is found'''
  
  
  class Lexer(object):
      def __init__(self, line, debug=False):
          self.line = self._strip_non_ws(line)
          self.pos = 0
          self.tokens = [[]]
          self.debug = debug
  
      def _strip_non_ws(self, line):
          # remove all characters not defined in CHAR_MAP
          return ''.join([i for i in line if i in CHAR_MAP.values()])
  
      def _get_int(self, t):
          token = Tokeniser(debug=self.debug)
          if t in [a for a in HAS_ARGS if a is not 'PUSH']:
              const = 'LABEL'
          elif t == 'PUSH':
              const = 'SIGNED_INT'
          token.scan(self.line, self.pos, const)
          return token
  
      def _get_token(self, const):
          token = Tokeniser(debug=self.debug)
          token.scan(self.line, self.pos, const)
          return token
  
      def get_all_tokens(self):
          while self.pos < len(self.line):
              print(self.pos)
              req_tokens = 2
              # Get the constant needed to find token
              const = IMP_CONST if len(self.tokens[-1]) == 0 else eval(
                  "{}_CONST".format(self.tokens[-1][0].type))
              token = self._get_token(const)
              print(token)
              self.pos = self.pos + len(token.value)
              self.tokens[-1].append(token)
              if token.type in HAS_ARGS:
                  self.tokens[-1].append(self._get_int(token.type))
                  # Add additional one to cater for lf at the end of int
                  self.pos = self.pos + len(self.tokens[-1][-1].value) + 1
                  # Increment the need number of tokens for the list
                  req_tokens += 1
              if len(self.tokens[-1]) == req_tokens:
                  self.tokens.append([])
          # Remove empty token list at the end
          del self.tokens[-1]
  
  
new_contents: from .lexerconstants import *
  from .ws_token import Tokeniser
  from .debug import Debug as dbg
  
  
  class IntError(ValueError):
      '''Exception when invalid integer is found'''
  
  
  class Lexer(object):
      def __init__(self, line, debug=False):
          self.line = self._strip_non_ws(line)
          self.pos = 0
          self.tokens = [[]]
          self.debug = debug
  
      def _strip_non_ws(self, line):
          # remove all characters not defined in CHAR_MAP
          return ''.join([i for i in line if i in CHAR_MAP.values()])
  
      def _get_int(self, t):
          token = Tokeniser(debug=self.debug)
          if t in [a for a in HAS_ARGS if a is not 'PUSH']:
              const = 'LABEL'
          elif t == 'PUSH':
              const = 'SIGNED_INT'
          token.scan(self.line, self.pos, const)
          return token
  
      def _get_token(self, const):
          token = Tokeniser(debug=self.debug)
          token.scan(self.line, self.pos, const)
          return token
  
      def get_all_tokens(self):
          while self.pos < len(self.line):
              req_tokens = 2
              # Get the constant needed to find token
              const = IMP_CONST if len(self.tokens[-1]) == 0 else eval(
                  "{}_CONST".format(self.tokens[-1][0].type))
              token = self._get_token(const)
              self.pos = self.pos + len(token.value)
              self.tokens[-1].append(token)
              if token.type in HAS_ARGS:
                  self.tokens[-1].append(self._get_int(token.type))
                  # Add additional one to cater for lf at the end of int
                  self.pos = self.pos + len(self.tokens[-1][-1].value) + 1
                  # Increment the need number of tokens for the list
                  req_tokens += 1
              if len(self.tokens[-1]) == req_tokens:
                  self.tokens.append([])
          # Remove empty token list at the end
          del self.tokens[-1]
  
  
subject: Remove print statements