Why is it recommended to use isinstance instead of type for instance checking in python?
阿神2017-05-24 11:35:09
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http://codingpy.com/article/p...
Example check:
Use isinstance(a, C) instead of type(a) is C`. But generally avoid doing instance checking. It is recommended to check the characteristics of the instance.
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When the comparison object is a subclass instance and a parent class,
isinstance会认为相等，typeis not equal.is equivalent to
isinstance比type多了个检查继承的功能，所以更愿意选择isinstance.