Pythonic conversion to singleton iterable if not already an iterable

Question

Suppose I have

def distance2(vector1, vector2):
    zipped = zip(vector1, vector2)
    difference2 = [(vector2 - vector1) ** 2 for (vector1, vector2) in zipp         


        

Answer 1

You are describing the basic usage of always_iterable.

>>> from more_itertools.more import always_iterable
>>> for val in always_iterable(1):
...     print(val)
...     
1

This helper is thoroughly battle-tested in OSS.