Instance methods dynamic generation depending from __init__'s parameter, avoiding a late binding

avoid_late_binding.py

from types import MethodType

def fn_factory(i, obj):
    """Function factory - avoids a late binding in closures"""
    def fn(self):
        return i
    return MethodType(fn, obj)

class Aaa(object):
    def __init__(self, n):
        self.registry = {}
        
        for i in range(n):
            fn = fn_factory(i, self)
            
            self.registry[i] = fn