class method __instancecheck__ does not work

This video explains
class method __instancecheck__ does not work

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Music by Eric Matyas
https://www.soundimage.org
Track title: Magic Ocean Looping

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Chapters
00:00 Question
00:57 Accepted answer (Score 24)
01:45 Answer 2 (Score 8)
02:15 Thank you

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Full question
https://stackoverflow.com/questions/1313...

Answer 1 links:
[http://docs.python.org/2/reference/datam...]: http://docs.python.org/2/reference/datam...

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Tags
#python

#avk47