simonwhitaker

Python: Type Aliases vs New Types

If you're a fan of Python type hinting, you may have noticed that there are two different ways to create your own types: type aliases and using the NewType helper.

Type aliases look like this:

Vector = list[float]

simonwhitaker

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simonwhitaker

#!/usr/bin/env python3

from itertools import combinations

# `combinations` gives all possible combinations of a sequence, with each
# combination in sorted order. So e.g. `combinations([1, 2, 3, 4], 3)` will
# yield:
#
# 1, 2, 3
# 1, 2, 4