CODEWITHSUNDEEP
pythonjsonjupyter
GivenX
GivenX

Reputation: 525

Save json object as Jupyter ipynb file

I have read a Jupyter notebook file (ipynb) into Jupyter as a json object for cleaning up purposes:

import json
with open('C:/Python/Scripts/MyNotebook.ipynb') as json_file:  
    jsonin= json.load(json_file)

I then remove some blocks of code that don't have the specified string #keepthis:

jsonout=jsonin
if '#keepthis' not in str(jsonout['cells'][1]['source']):
    jsonout['cells'][1] = np.nan

This works fine. How do I now convert jsonout back into an .ipynb file? I have tried this:

!jupyter nbconvert --to jsonout 'C:/Python/Scripts/MyNotebookClean.ipynb'

But I get this error despite manually creating the MyNotebookClean.ipynb file in the same location as the original MyNotebook.ipynb file: [NbConvertApp] WARNING | pattern "'C:/Python/Scripts/MyNotebookClean.ipynb'" matched no files

Upvotes: 1

Views: 3249

Answers (1)

GivenX
GivenX

Reputation: 525

I found the answer to writing the json object back to the ipynb file. It is simply:

with open('C:/Python/Scripts/MyNotebookClean.ipynb', 'w') as outfile:
    json.dump(jsonout, outfile)

Also, I should have used del jsonout['cells'][1] instead of jsonout['cells'][1] = np.nan

Upvotes: 1

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