问题
I installed Anaconda3 having Python 3.7.3 on Windows 10. When I launch Jupyter Notebook from Anaconda3 Navigator using environment: base(root), it shows kernel error and Python 3 (which is default kernel) as dead kernel.
The kernel error is:
Traceback (most recent call last): File "C:\Users\Admin\AppData\Roaming\Python\Python37\site-packages\tornado\web.py", line 1699, in _execute result = await result File "C:\Users\Admin\AppData\Roaming\Python\Python37\site-packages\tornado\gen.py", line 742, in run yielded = self.gen.throw(*exc_info) # type: ignore File "C:\Users\Admin\AppData\Roaming\Python\Python37\site-packages\notebook\services\sessions\handlers.py", line 72, in post type=mtype)) File "C:\Users\Admin\AppData\Roaming\Python\Python37\site-packages\tornado\gen.py", line 735, in run value = future.result() File "C:\Users\Admin\AppData\Roaming\Python\Python37\site-packages\tornado\gen.py", line 742, in run yielded = self.gen.throw(*exc_info) # type: ignore File "C:\Users\Admin\AppData\Roaming\Python\Python37\site-packages\notebook\services\sessions\sessionmanager.py", line 88, in create_session kernel_id = yield self.start_kernel_for_session(session_id, path, name, type, kernel_name) File "C:\Users\Admin\AppData\Roaming\Python\Python37\site-packages\tornado\gen.py", line 735, in run value = future.result() File "C:\Users\Admin\AppData\Roaming\Python\Python37\site-packages\tornado\gen.py", line 742, in run yielded = self.gen.throw(*exc_info) # type: ignore File "C:\Users\Admin\AppData\Roaming\Python\Python37\site-packages\notebook\services\sessions\sessionmanager.py", line 101, in start_kernel_for_session self.kernel_manager.start_kernel(path=kernel_path, kernel_name=kernel_name) File "C:\Users\Admin\AppData\Roaming\Python\Python37\site-packages\tornado\gen.py", line 735, in run value = future.result() File "C:\Users\Admin\AppData\Roaming\Python\Python37\site-packages\tornado\gen.py", line 209, in wrapper yielded = next(result) File "C:\Users\Admin\AppData\Roaming\Python\Python37\site-packages\notebook\services\kernels\kernelmanager.py", line 168, in start_kernel super(MappingKernelManager, self).start_kernel(**kwargs) File "C:\Users\Admin\AppData\Roaming\Python\Python37\site-packages\jupyter_client\multikernelmanager.py", line 110, in start_kernel km.start_kernel(**kwargs) File "C:\Users\Admin\AppData\Roaming\Python\Python37\site-packages\jupyter_client\manager.py", line 240, in start_kernel self.write_connection_file() File "C:\Users\Admin\AppData\Roaming\Python\Python37\site-packages\jupyter_client\connect.py", line 547, in write_connection_file kernel_name=self.kernel_name File "C:\Users\Admin\AppData\Roaming\Python\Python37\site-packages\jupyter_client\connect.py", line 212, in write_connection_file with secure_write(fname) as f: File "C:\Users\Admin\Anaconda3\lib\contextlib.py", line 112, in enter return next(self.gen) File "C:\Users\Admin\AppData\Roaming\Python\Python37\site-packages\jupyter_client\connect.py", line 100, in secure_write win32_restrict_file_to_user(fname) File "C:\Users\Admin\AppData\Roaming\Python\Python37\site-packages\jupyter_client\connect.py", line 53, in win32_restrict_file_to_user import win32api ImportError: DLL load failed: The specified procedure could not be found.
I am new to Python and anaconda, please help someone!
回答1:
Seeing the slew of error you are getting, i advise you to reinstall anaconda on windows 10. Kernel errors aren't easily solved. So, reinstalling is the easiest way to solve this... given link should help:===>
Installing anaconda on W10
回答2:
1)In jupyter notebook if you find "kernel dead" then click file and select close and halt option.When notebook gets closed you can go to kernel and click restart.
2) If the above instruction didn't work then uninstall and install the following packages
jupyter_client
jupyter_core
ipykernel
ipython
ipython_genutils
traitlets
来源：https://stackoverflow.com/questions/58200576/default-kernel-in-jupyter-notebook-python3-not-working