파이썬

Question

을 나는이 파이썬 코드를 가지고 :

같이 보이는하는 sierpinski.fdl 파일에서 정보를 추출한다

import math, random, sys 
from swampy.TurtleWorld import * 

world = TurtleWorld() 
Rasmus = Turtle() 
Rasmus.delay = 0.000002 

class rule(object): 
     def __init__(self): 
       self.rule={} #we make an empty dictionary 

     def newrule(self,leftside,rightside): 
       self.rule[leftside]=rightside #we fill the dictionary 

     def expand (self,oldlist,depth): 
       if depth <= 0: 
         return oldlist 
       newlist=[] # we make an empty new list 
       for i in oldlist: 
         if i not in self.rule: 
           newlist.append(i) 
         else: 
           newlist.append(self.expand(self.rule[i],depth-1)) 
       return newlist 

class command(object): 
     def __init__(self, cmd, length): 
       self.cmd = cmd 
       self.length = length 

     def execute(self, turtle, length): 
      if self.cmd=='lt': 
        lt(turtle, int(self.length[0])) 
      if self.cmd=='rt': 
        rt(turtle, int(self.length[0])) 
      if self.cmd=='fd': 
        fd(turtle, length) 
      if self.cmd=='bk': 
        bk(turtle, length) 
      if self.cmd=='scale': 
        length = length*float(self.length[0]) 

class Fractal(object): 
    def __init__(self, rules, commands, start, length, depth): 
      self.rules = rules 
      self.commands = commands 
      self.start = start 
      self.length = length 
      self.depth = depth 

    def draw(self, oldlist): 
      for i in oldlist: 
        if type(i) == list: 
          self.draw(i) 
        else: 
          cmd = self.commands[i] 
          cmd.execute(Rasmus, self.length) 

def read(): 
    files = open('sierpinski2.fdl') 
    commands = {} 
    r = rule() 
    for line in files: 
      line = line.strip() 
      oldlist = line.split(' ') 
      if oldlist[0] == 'start': 
        start = oldlist[1:] 
      elif oldlist[0] == 'rule': 
        r.newrule(oldlist[1], oldlist[3:]) 
      elif oldlist[0] == 'cmd': 
        cmd = command(oldlist[2], oldlist[3:]) 
        commands[oldlist[1]] = cmd 
      elif oldlist[0] == 'length': 
        length = int(oldlist[1]) 
      elif oldlist[0] == 'depth': 
        depth = int(oldlist[1]) 
    return Fractal(start, r, commands, length, depth) 

re = read() 

print re.commands.keys() 

length = re.rules.expand(re.start , re.depth) 
re.draw(l) 


wait_for_user() 

:

start F L F L F L 

rule F -> F L F L F L F F 

length 8 

depth 5 

cmd F fd 

cmd L lt 120 

Traceback (most recent call last): 

    File "C:\Python27\PythonScripts\swampy-2.1.1\swampy\Projekt del 2.py", line 81, in  <module> 

    print re.commands.keys() 

AttributeError: 'rule' object has no attribute 'keys' 

내가 아는 :

내 문제는 내가이 프로그램을 실행할 때, 그것은 내게 오류를 준다이다 문제가있는 곳 :

re = read() 

print re.commands.keys() 

length = re.rules.expand(re.start , re.depth) 
re.draw 

코드의 일부로 프로그램 실행이 가능하지만 문제를 해결할 수 없습니다.

나는 파이썬 2.7.5

Answer 1

읽기() 함수를 반환 사용하고이 Fractal

return Fractal(start, r, commands, length, depth) 

하지만 Fractal.__init__의 signiture이

def __init__(self, rules, commands, start, length, depth): 

이다 그래서 당신이했습니다 나타납니다 매개 변수의 순서를 바꿨습니다.