[メモ]Python

リストのコピー:

>>> a = [1, 2, 3]
>>> b = a
>>> b
[1, 2, 3]
>>> b.append(4)
>>> b
[1, 2, 3, 4]
>>> a
[1, 2, 3, 4]

>>> a = [1, 2, 3]
>>> b = list(a)
>>> a.append(4)
>>> a
[1, 2, 3, 4]
>>> b
[1, 2, 3]

zip関数:

>>> z1 = [1, 2]
>>> z2 = [3, 4]
>>> z = zip(z1, z2)
>>> z
[(1, 3), (2, 4)]