These two examples silently truncate the unmatched inputs:

>>> list(map(pow, [1, 2, 3], [2, 2, 2, 2]))
[1, 4, 9]
>>> list(map(pow, [1, 2, 3, 4, 5], [2, 2, 2, 2]))
[1, 4, 9, 16]

The current workaround is:

starmap(pow, zip(vec1, vec2, strict=True))

Ideally, map() should support this directly. The reasoning is the same reasoning that motivated the strict option for zip()

Linked PRs

• gh-119793: Add optional length-checking to map() #120471
• gh-119793: Prefer map(..., strict=True) over starmap/zip in examples #126407