code: def is_print(value, space = True, tab = False, crlf = False):
      
      if not isinstance(value, basestring):
          return False
  
      regex = r'\x00-\x08\x0B\x0C\x0E-\x1F\x7F'
  
      if not space:
          regex += r'\x20'
  
      if tab:
          regex += r'\x09'
  
      if crlf:
          regex += r'\x0A\x0D'
  
      return re.match(r'[' + regex + ']', value, re.U) is None
docs: Returns True if is print or False otherwise