unbound method with instance as first argument got string but requires something else
Solution 1
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
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).
Solution 2
You're calling an unbound method, meaning you're accessing a method from a class itself, and not through an instance (so Python doesn't know which instance should be used as self
). This code shouldn't give that error as shown, but I assume you're doing something like
maps.Maps.add_animal(rbt)
It's not clear what you're trying to do, or I'd offer a suggestion as to how to fix it.
user1082764
Updated on July 09, 2022Comments
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user1082764 almost 2 years
#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")
gives me this an error that looks like this
TypeError: unbound method add_animal() must be called with Maps instance as first argument (got str instance instead)
but i dont know what it means and i cannot figure it out searching through google or yahoo :(