How To Traverse A High-order Range In Python?

In python, we can use range(x) to traverse from 0 to x-1. But what if I want to traverse a high-order range? For example, given (a, b), I want to traverse all (x1, x2) such that 0

Solution 1:

Use itertools.product:

from itertools import product

for x, y, z in product(range(a), range(b), range(c)):
    print( (x,y,z) )

With a variable number of dimensions:

limits = [5, 3, 7, 6]

for v in product(*(range(n) for n in limits)):
    print(v)