Can not open Jupyter notebook in PyCharm
Answered
I use PyCharm 2019.1.2 Professional with installed packages about Jupyter on Windows 10 Pro ver 1903.
Then I open 3 files Index.ipynb and s3_bubble-charts.ipynb and SequentialStructure.ipynb.
1. Index.ipynb
This file is open without any problem.
2. SequentialStructure.ipynb
I double click to open it but nothing happen.
3. s3_bubble-charts.ipynb
This file is opened with blank page and show no code inside it.
Please help me solve this problem
Here is the link to download these three files.
Screenshot:

and

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Hi, SequentialStructure.ipynb is not a correct Jupyter notebook file, it seems to be an HTML file with ipynb extension for some reason. I create a ticket to gracefully handle this case in PyCharm https://youtrack.jetbrains.com/issue/PY-35951 but you should check why it happened in the first place on your side.
s3_bubble-charts.ipynb has an old format which is not supported by PyCharm. I created a separate ticket as well https://youtrack.jetbrains.com/issue/PY-35952 Consider updating the notebook package and convert the file to a modern format.
Thank you so much! I got it.
The usual cause of an html page with .ipynb or .py extension is trying to save a GitHub page that shows the code.
The page looks like a notebook page or scritp, but it's actually html.
If you select the 'Raw' button on GitHub before saving the code you'll avoid this problem.
Hi Romilly,
You guess correctly. I download these files from github here.