Why is it recommended to use isinstance instead of type for instance checking in python?

Question

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.

Answer 1

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.

Answer 2

/q/1010000000127305
看这个，更详细一点