object oriented python 3 input error -

i'm working python 3.4 on debian 8.5 linux. i'm working "learn python 3 hard way" , i'm working section running test (via nosetests). have code (which include in full) , it's giving me error on statement should valid, i'm assuming it's not liking how i've set statement up. it's on "class prompt" section:

class prompt(object):     prompt = input("> ") 

the idea code prompt 1 time and: call later on easier coding, nose keeps responding :

typeerror: bad argument type built-in operation

i'll include full error test well.

i'm looking see if in fact, i'm calling prompt incorrectly , if so, i'd appreciate nudge in right direction, not full solution ( learn better way :) ) thanks!

====== begin engine.py ==============

# babylon 5 scorched earth # more advanced example of proof-of-concept worked on # few weeks ago. # time engine 1 file, rooms can # self contained , need include 1 file  # have 1 room, room change # depending on race choose!  in game # there total of 5 rooms: # earther -   earth on surface # drakh   -   earth, underground! # marsie  -   mars, inside mars dome # minbari -   minbar # centari -   centari prime, in front of emperor's palace  # stats part of model,  are: # cha  - charisma - how charming , persuasive # con  - constitution - how damage can take # dex  - how fast you, how minble finges # int  - how smart # str  - how strong # tech - not random - earthers start 5, else starts 10 # teep - 1 in 100 chance teep, cannot chosen!! # wis  - how savy you, or how wise schemes  # prompt defined in engine too, , called # throught game  # first imports  sys import exit   # we'll call first room random import randint # randomizing stats   # define names object, define invalid names class name(object):     def name(self):         invalid.name=("delenn", "kosh", "morden", "sheridan", "sinclair", "ivanova" "g'kar")   # define races - have know races we're working # define valid races - other races excluded class race(object):     def race(self):        valid.race = ("centari", "drakh", "earther", "marsie", "minbari")   # define stats - again tech , teep not random # tech 5 earthers , 10 else # teep random roll 1 100 , cannot elected # races valid teeps class stats(object):     def stats(self):         stats = [             " cha:  "             " con:  "             " dex:  "             " int:  "             " str:  "             " tech: "             " teep: "             " wis : "             ]      def cha(self):          print(stats.cha.self[randint(0 - 20)])     def con(self):          print(stats.con.self[randint(0 - 20)])     def dex(self):          print(stats.dex.self[randint(0 - 20)])     def int(self):          print(stats.int.self[randint(0 - 20)])     def str(self):          print(stats.str.self[randint(0 - 20)])     def teep(self):          print(stats.teep.self[randint(0 - 100)])     def wis(self):               print(stats.wis.self[randint(0 - 20)])     def tech(self):          if race(self)== "earther":              print(stats.tech.self("5"))          else:              print(stats.tech.self("10"))   # setting prompt  class prompt(object):     prompt = input("> ")     # set room - generic code # tells program room # code generic, we're defining # word "room" , once engine we'll # telling room  class room(object):     def enter(self):         print("there's no room here @ moment.")         print("create room , show ")         print("other ! ")         exit(1)  # if there no other rooms present    # here's engine,  tell  # room exactly.  basically, we're going tell go  # current room , code move next room !  class engine(object):      def __init__(self, room_map):          self.room_map = room_map        def play(self):   # needs defined we'll use start          current_room = self.room_map.opening_room() # program          last_room = self.room_map.next_room('finished')           while current_room !=last_room:              next_room_name = current_room.enter()              currrent_room = self.room.map.next_room(next_room_map)            # print out thue room           current_room.enter()  # there no death coded in here. # next we'll  try coding map  class in here , see # engine can self-contained  class map(object):    # here's every room mapped out     rooms =  {    # here th rooms officially named         ' atr' : atr(),   # first room @ rim         ' centari_prime' : centariprime(),  # centari         ' earth_under'   : earthunderground(), # drakh         ' earth'         : earth(), # earthers         ' marsdome'      : marsdome(), # marsies         ' minbar '       : minbar(),   # minbari         ' finished'      : finished(), # last room!         }   # defining map  def __init__(self, start_map):          self.start_room = start_rooms  def next_room(self, room_name):          val = map.room.get(room_name)          return val  def opening_room(self):          return self.next_          room(self.start_room)    # defining starting room  a_room = rooms('atr') a_game = engine(a_room) a_game = play() 

===== begin error log ========

====================================================================== error: failure: typeerror (bad argument type built-in operation) ---------------------------------------------------------------------- traceback (most recent call last):   file "/usr/local/lib/python3.4/dist-packages/nose/failure.py", line 39, in runtest     raise self.exc_val.with_traceback(self.tb)   file "/usr/local/lib/python3.4/dist-packages/nose/loader.py", line 418, in loadtestsfromname     addr.filename, addr.module)   file "/usr/local/lib/python3.4/dist-packages/nose/importer.py", line 47, in importfrompath     return self.importfromdir(dir_path, fqname)   file "/usr/local/lib/python3.4/dist-packages/nose/importer.py", line 94, in importfromdir     mod = load_module(part_fqname, fh, filename, desc)   file "/usr/lib/python3.4/imp.py", line 235, in load_module     return load_source(name, filename, file)   file "/usr/lib/python3.4/imp.py", line 171, in load_source     module = methods.load()   file "<frozen importlib._bootstrap>", line 1220, in load   file "<frozen importlib._bootstrap>", line 1200, in _load_unlocked   file "<frozen importlib._bootstrap>", line 1129, in _exec   file "<frozen importlib._bootstrap>", line 1471, in exec_module   file "<frozen importlib._bootstrap>", line 321, in _call_with_frames_removed   file "/home/phoenix/python3/b5_scorched/projects/skeleton/tests/engine_test.py", line 5, in <module>     b5_scorched.engine import *    # import classes   file "/home/phoenix/python3/b5_scorched/projects/skeleton/b5_scorched/engine.py", line 88, in <module>     class prompt(object):   file "/home/phoenix/python3/b5_scorched/projects/skeleton/b5_scorched/engine.py", line 89, in prompt     prompt = input("> ") typeerror: bad argument type built-in operation  ---------------------------------------------------------------------- ran 1 test in 0.006s  failed (errors=1) 

thank again !

i can't reproduce error messages here's see:

this definition strange:

class prompt(object):     prompt = input("> ") 

when file run or imported, prompts input that's thrown away. since don't invoke feature, it's hard know how meant used. here's guess @ implementation:

class prompt():     @staticmethod     def input():         return input("> ") 

usage

>>> x = prompt.input() > goat >>> x 'goat' >>>  

beyond that, there other problems program: function has unreachable code:

def opening_room(self):     return self.next_     room(self.start_room) 

anything after return never executed. there's no import or code in file define atr() is. additionally, there seem indentation issues (e.g. none of class map() methods indented) , static/class methods defined instance methods.

you might want test smaller chucks of code build larger ones.