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错误日志

ModuleNotFoundError: No module named 'jupyter_nbextensions_configurator'

Traceback (most recent call last):      File "/usr/local/Cellar/jupyterlab/2.0.1/libexec/lib/python3.7/site-packages/notebook/notebookapp.py", line 1670, in init_server_extensions        mod = importlib.import_module(modulename)      File "/usr/local/Cellar/jupyterlab/2.0.1/libexec/lib/python3.7/importlib/__init__.py", line 127, in import_module        return _bootstrap._gcd_import(name[level:], package, level)      File "
   
    ", line 1006, in _gcd_import      File "
    
     ", line 983, in _find_and_load      File "
     
      ", line 965, in _find_and_load_unlocked    ModuleNotFoundError: No module named 'jupyter_nbextensions_configurator'
     
    
   

分析原因

nbextensions已经安装成功，但是启动jupyter的时候，提示"No module named 'jupyter_nbextensions_configurator"，而且notebook的首页也没有nbextensions标签。

网上搜索了很多文章，尝试过很多方法，甚至卸载jupyter重新安装也不行。

于是决定还是从错误日志入手，既然提示没有module，第一行也给了一个路径/usr/local/Cellar/jupyterlab/2.0.1/libexec/lib/python3.7/site-packages/，反正死马当活马医，在这个路径下再安装jupyter_nbextensions_configurator试试

pip3 install --target=/usr/local/Cellar/jupyterlab/2.0.1/libexec/lib/python3.7/site-packages jupyter_contrib_nbextensions

结果还真解决了，启动的时候没有提示错误，标签也正常显示

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