How to block stderr output in Jupyter Notebook?

Question

I am running a Python script in Jupyter Notebook and a library I am using (PyNN), produces a lot of stderr output that slows down the code and fills up the memory. I have tried using %%capture at the beginning of the cell but nothing has changed, and the output remains the same.

I am posting a snap of the output.

Any tips are appreciated. Thanks

Try ```ipython notebook --quiet``` (this disables logging) in addition to @edubriguenti suggestion. — Aviv Yaniv, Aug 23 '20 at 13:19
@edubriguenti I tried but %%capture doesn't seem to work at all for me right now — costisst, Aug 23 '20 at 13:29
@AvivYaniv If I understand correctly this one should be run in a terminal of the notebook, but I got ImportError: No module named notebook.notebookapp — costisst, Aug 23 '20 at 13:30
@costisst Allright try ```jupyter notebook notebook.ipynb --log-level=0``` — Aviv Yaniv, Aug 23 '20 at 13:44

score 0 · Answer 1 · answered Aug 23 '20 at 13:17

0

If the issue is with printing, you can redirect the stream with contextlib:

import contextlib
import os

devnull = open(os.devnull, 'w')
contextlib.redirect_stderr(devnull)

answered Aug 23 '20 at 13:17

Maximilian Burszley

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I am having for than 1 scripts in my code, which implement different classes. I tried this code in the main script, which is the only one using the PyNN library, but it didn't work. I also tried adding it in every script and it didn't work either – costisst Aug 23 '20 at 13:33

How to block stderr output in Jupyter Notebook?

1 Answers1