notebook-5.2.1 is broken since 2019-12-31 and update of www-servers/tornado-5.1
jupyter-notebook fail with :
TypeError: __init__() got an unexpected keyword argument 'io_loop'
This is a incompatibility between version, as stated in : https://github.com/jupyter/help/issues/324
Notebook is compatible with tornado-5.x since version 5.5.0, as stated in :
https://github.com/jupyter/notebook/blo ... ngelog.rst
Way to reproduice :
A a fresh system, install notebook with "equo i dev-python/notebook" and launch with "jupyter-notebook". Then launch a new kernel with "new" button top right.
Connection to the ipython-kernel is never established and terminal will print error message.
Way to solve : upgrade to notebook-5.7.8 or either downgrade to tornado-4.4.2-r1
emerge notebook-5.7.8 solved the issue for me and seems a longer-term solution.
Filled a bug today, but previous bug filled were never read... So i post here too.
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