added --autoreload flag to NotebookApp
#4795
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This pull request has been mentioned on Jupyter Community Forum. There might be relevant details there: https://discourse.jupyter.org/t/reload-jupyter-serverextension/2200/3 |
This was referenced Nov 15, 2019
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@telamonian, do you mind rebasing this one? |
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Can do |
When passed, the webapp will watch for any changes to its Python source. On change, all changed packages will be reimported and the webapp will restart. Also works on Python source files in Jupyter server extensions. Implemented using the built in `autoreload` parameter in the constructor of `tornado.web.Application`.
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@blink1073 done! |
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Thanks! |
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When the
--autoreloadflag is passed, the webapp will watch for any changes to its Python source. On change, all changed packages will be reimported and the webapp will restart. Also works on Python source files in Jupyter server extensions. Implemented using the built inautoreloadparameter in the constructor oftornado.web.Application, whichNotebookApp.web_appis a subclass of.While I was working on a server extension for Jupyterlab, I got pretty sick of having to kill and restart Jupyterlab every time I made changes to the Python source. This PR is an attempt to enable hot reloading for the sources of
notebookand any extensions.Though the autoreload behavior is currently a bit cumbersome (the Notebook server will reload completely from scratch, including (on Jupyterlab, at least) launching a new browser window with a new security token), I believe that it is useful as is. I also think that in the future it can definitely be improved, most obviously by recycling certain resources on reload, such as browser windows and security tokens.