IPython %run 忽略打印命令

Question

I'm using several Jupyter Notebooks to split the tasks between different modules. In my main notebook I call another module %run another_module.ipynb which loads all my data. However, it also plots and prints everything I have in another_module.ipynb .

I want to keep the plots in another_module.ipynb to help me visualise the data but I don't want to reprint everything when calling run another_module.ipynb . Is there an option to prevent priniting this?

Thanks

Answer 1

You could:

1. Override the print function and make it a no-op:

_print_function = print  # create a backup in case you need it later
globals()["print"] = lambda *args, **kwargs: None

2. Run the file with the -i flag. Without -i , the file is run in a new namespace, so your modifications to the global variables are lost; with -i , the file is run in the current namespace.

%run -i another_module.ipynb

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If you're using other methods to print logs (eg, sys.stdout.write() , logging ), it would be harder to create mocks for them. In that case, I would suggest redirecting the stdout or stderr pipe to /dev/null :

import os
import sys
sys.stdout = fopen(os.devnull, "w")
%run -i another_module.ipynb

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Both methods are considered hacks and should only be used when you know the consequences. The better thing to do here is to change your code in the notebook, either to add a --verbose flag to control logging, or use some logging library (eg, logging ) that supports turning off logging entirely.