[Notebook] Add more Python kernel notebook

[frank-zsy]

We need to transform all Node.js kernel notebook into Python kernel notebook.

We can add a _py suffix right now to Node.js kernel notebook.

[open-digger-bot]

This issue has not been replied for 24 hours, please pay attention to this issue: @gymgym1212 @xiaoya-yaya

[yanchaomei]

Hi, I want to do this task. I see that most notebooks are written with node.js. Is this task required to rewrite all notebooks written by node.js into notebooks written by python?

[xgdyp]

Hi, in fact, our python kernel has lagged behind js kernel a lot. So if you want to do some work on the python kernel, we can rewrite the basic framework and metrics in Python together.

[yanchaomei]

Ok, I'm willing to try to do this task

[birdflyi]

Hi, due to personal needs, I'd like to take another try~