Add support for looping over empty tuples

[kc611]

---

Feature request

import numba

@numba.njit
def test():
    a = ((1, 2),)
    b = ()
    c= (1,)

    # Works
    for i in c:
        print(i)

    for i, j in a:
        print(i+j)

    # Fails due to type error
    for i in b:
        print(i)

    for i, j in b:
        print(i+j)

test()

In general, there doesn't seem to be an way to iterate over empty tuples in Numba. For instance, we might not know if the element being iterated over is empty or not.

[esc]

@kc611 thank you for reporting this. I seems like a duplicate of: #7245

[stuartarchibald]

@kc611 Thanks for opening the request. Am going to close this as it's a duplicate as noted. Perhaps consider subscribing to #7245 to get updates on any progress made? Thanks again!