Dict Magic

if-elif-else Kaskade

Altes Problem, kennt man:

>>> if var == 'one':
...     res = 1
... elif var == 'two':
...     res = 2
... elif var == 'three':
...     res = 3
... else:
...     res = -1

Doch schon mal daran gedacht, das alles ein bisschen kompakter zu formulieren?

>>> res = dict(
...     one=1,
...     two=2,
...     three=3,
... ).get(var, -1)

last update: 2024-01-28 17:42:17 +0100