How can I convert non-zero entries in Pandas to dict with list?

This video explains
How can I convert non-zero entries in Pandas to dict with list?

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Music by Eric Matyas
https://www.soundimage.org
Track title: Lost Meadow

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Chapters
00:00 Question
00:56 Accepted answer (Score 1)
01:40 Thank you

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Full question
https://stackoverflow.com/questions/5567...

Accepted answer links:
[DataFrame.where]: http://pandas.pydata.org/pandas-docs/sta...
[DataFrame.stack]: http://pandas.pydata.org/pandas-docs/sta...

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Tags
#python #pandas