实例作为第一个参数的未绑定方法获取了字符串，但还需要其他内容 [英] unbound method with instance as first argument got string but requires something else

问题描述

#Maps.py
class Maps(object):

    def __init__(self):
        self.animals = []
        self.currently_occupied = {}

    def add_animal(self, name):
        self.animals.append(name)
        self.currently_occupied = {robot:[0, 0]}



#animal.py
class Animal(object):

    def __init__(self, name):
        import maps
        maps.add_animal(rbt)
        self.name = name


#Tproject.py
from Animal import Animal
Fred = Animal("Fred")

给我一​​个看起来像这样的错误

gives me this an error that looks like this

TypeError:未绑定方法add_animal()必须以Maps实例作为第一个参数(而不是got str实例)来调用

TypeError: unbound method add_animal() must be called with Maps instance as first argument (got str instance instead)

但我不知道这是什么意思，我无法通过Google或Yahoo搜索来解决它:(

but i dont know what it means and i cannot figure it out searching through google or yahoo :(

推荐答案

您需要一个Maps实例，而不是Maps类:

You need an instance of Maps, not the Maps class:

 maps.Maps.add_animal("Fred") # gives error

 mymap = maps.Map()

 mymap.add_animal("Fred") # should work

因此，您应该在Animal类上，每个Animal实例上或作为全局对象(无论哪种情况最适合您的情况)都具有mymap属性.

So you should either have a mymap attribute on the Animal class, per Animal instance or as a global object (whatever works best for your case).

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