code: def btc_tx_script_to_asm( script_hex ):
      
      if len(script_hex) == 0:
          return ""
  
      try:
          script_array = btc_script_deserialize(script_hex)
      except:
          log.error("Failed to convert '%s' to assembler" % script_hex)
          raise
  
      script_tokens = []
      for token in script_array:
          if token is None:
              token = 0
  
          token_name = None
  
          if type(token) in [int,long]:
              token_name = OPCODE_NAMES.get(token, None)
              if token_name is None:
                  token_name = str(token)
          
          else:
              token_name = token
  
          script_tokens.append(token_name)
  
      return " ".join(script_tokens)
docs: Decode a script into assembler