how to detect a sequence? - Printable Version +- Python Forum (https://python-forum.io) +-- Forum: Python Coding (https://python-forum.io/forum-7.html) +--- Forum: General Coding Help (https://python-forum.io/forum-8.html) +--- Thread: how to detect a sequence? (/thread-30675.html) |
how to detect a sequence? - Skaperen - Oct-31-2020 what is the best way to detect if a given value is a sequence or not? my first thought is to try to slice it under try/except. RE: how to detect a sequence? - bowlofred - Oct-31-2020 You can use the abstract base class definitions in the collections module to compare against. >>> import collections.abc >>> isinstance("ABC", collections.abc.Sequence) True >>> isinstance([1, 2, 3], collections.abc.Sequence) True >>> isinstance((1, 2, 3), collections.abc.Sequence) True >>> isinstance({1, 2, 3}, collections.abc.Sequence) False >>> isinstance({'a':1, 'b':2}, collections.abc.Sequence) False |