How to view source code and help document in notebook

[catqaq]

No description provided.

[catqaq]

Any help will be grateful!

[diallobakary4]

The question mark ? or the double question ?? after the object you want to see the doc. see here <https://jakevdp.github.io/PythonDataScienceHandbook/01.01-help-and-documentation.html> Le dim. 28 avr. 2019 à 08:36, catqaq <notifications@github.com> a écrit :

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[catqaq]

Thanks for your answer. I konw the '?' or '??' operation, but it is not convenient and only valid for help doc.
I want to see the source code, just like the function's definition.
Any idea?