how to return None if constructor arguments invalid

This video explains
how to return None if constructor arguments invalid

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Music by Eric Matyas
https://www.soundimage.org
Track title: Digital Sunset Looping

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Chapters
00:00 Question
00:51 Accepted answer (Score 45)
01:54 Answer 2 (Score 1)
02:41 Answer 3 (Score 1)
03:03 Thank you

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Full question
https://stackoverflow.com/questions/2520...

Accepted answer links:
[classmethod]: https://docs.python.org/2/library/functi...

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Content licensed under CC BY-SA
https://meta.stackexchange.com/help/lice...

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Tags
#python #class #oop

#avk47