仅在 python 2(不是 python 3)中:

In python 2 only (not python 3):

assert not isinstance(lst, basestring)

实际上就是你想要的，否则你会错过很多类似于列表但不是list或tuple的子类的东西.

Is actually what you want, otherwise you'll miss out on a lot of things which act like lists, but aren't subclasses of list or tuple.