pandas: merge (join) two data frames on multiple columns

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Chapters
00:00 Question
00:44 Accepted answer (Score 572)
01:29 Answer 2 (Score 12)
02:17 Answer 3 (Score 10)
02:31 Answer 4 (Score 6)
05:53 Thank you

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Full question
https://stackoverflow.com/questions/4181...

Accepted answer links:
https://pandas.pydata.org/pandas-docs/st...

Answer 4 links:
[image]: https://i.stack.imgur.com/RBTQy.png
[image]: https://i.stack.imgur.com/VIZue.png
[image]: https://i.stack.imgur.com/ilaff.png
[image]: https://i.stack.imgur.com/SbDyF.png

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Tags
#python #python3x #pandas #join

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