Nested Python class needs to access variable in enclosing class

Question

I\'ve seen a few \"solutions\" to this, but the solution every time seems to be \"Don\'t use nested classes, define the classes outside and then use them normally\". I don\'

Answer 1

You don't need two classes here. Here's your example code written in a more concise fashion.

class ChildClass:
    def __init__(self, stream):
        idx = stream.read_ui16()
        self.name = self.constant_pool[idx]

def makeChildren(stream):
    ChildClass.constant_pool = ConstantPool(stream)
    return [ChildClass(stream) for i in range(stream.read_ui16())]

Welcome to Python. Classes are mutable at runtime. Enjoy.