How to overload a class constructor in Python?

Question

Django

Given class:

class Container:
    def __init__(self, a, b, c, d, e, f, g):
        self.a = a
        self.b = b
        self.c = c 
        self.d = d
        self.e = e
        self.f = f
        self.g = g

How to implement constructor overloading?
So the class call would be like this:

obj1 = Container(a=1, b=2, c=3, d=4)
obj2 = Container(x=4, y=3)

My solution is this, but it doesn't work:

class Container:
    def __init__(self, **kwargs):
        for key in kwargs:
            self.key = kwargs[key]

PS Preferably, an implementation with named arguments, but with positional ones is also welcome)
UPD :
There is a function:

def get_data(request):
    a = request.POST['a']
    b = request.POST['b']
    c = request.POST['c']
    d = request.POST['d']
    e = request.POST['e']
    f = request.POST['f']
    cont = Container(a, b, c, d, e, f)
    return cont

It is used to get data from a POST request. I thought it's better to pass data in a class instance than to do return a, b, c, d, e, f . Then, the received data is processed further, for example, it is passed to the function:
I think this is better:
send_data(instanceOfContainer)
And this is worse:
send_data(a, b, c, d, e, f)
The number of fields that are transmitted by the POST request will increase over time and make request.POST[key] a thousand times is not an option. As well as extending the constructor for the Container class with self.x = x . We need a way to make it short and sweet. That's why I'm asking about variable length named and positional parameters.

Answer 1

I did this:

class A(object):
    def __init__(self, **kwargs):
        for name, value in kwargs.items():
            setattr(self, name, value)

a = A(x=4, y=5)

Answer 2

There is no such thing as "overload constructor" in Python. There is one __init__ , and to solve the problem with different situations, several methods are made, for example: SuperPuperClass.build_situation1(), SuperPuperClass.build_situation2(). You can read here: Python constructors and __init__