Question

An accumulator is a function that is called repeatedly with a single numeric argument
and accumulates its arguments into a sum. Each time it is called, it returns
the currently accumulated sum. Write a function make accumulator that generates
accumulators, each maintaining an independent sum
Can anyone give me some ideas? I tried many times but failed to write the code.

Answer 1

>>> A = make_accumulator()
>>> A(10)
10
>>> A(10)
20
>>> B = make_accumulator()
>>> B(30)
30
>>> B(-10)
20