Modify bound variables of a closure in Python

Question

Is there any way to modify the bound value of one of the variables inside a closure? Look at the example to understand it better.

def foo():
    var_a = 2
           


        

Answer 1

Why not make var_a and var_b arguments of the function foo?

def foo(var_a = 2, var_b = 3):
    def _closure(x):
        return var_a + var_b + x
    return _closure

localClosure = foo() # uses default arguments 2, 3
print localClosure(1) # 2 + 3 + 1 = 6

localClosure = foo(0, 3)
print localClosure(1) # 0 + 3 + 1 = 4