木星实验室的内核不连接
木星实验室的内核不连接
提问于 2021-08-01 15:57:06
内核说要连接，然后说没有断开内核。我已经清空安装了anaconda，并使用python -m pip uninstall -y jupyter jupyter_core jupyter-client jupyter-console jupyterlab_pygments notebook qtconsole nbconvert nbformat卸载了所有jupyter。
在Home目录中搜索anaconda或jupyter什么都没有。
然后，我重新安装了anaconda，问题依然存在。
一开始，内核似乎是与一个新笔记本连接，但过了一段时间，内核连接到了一个新笔记本中。(更新：我发现新笔记本连接到内核，直到打开旧笔记本。一旦打开旧笔记本，就不会有笔记本连接到内核)
我被困在这里了。
以下是我在航站楼里得到的信息：
[I 2021-08-01 21:01:42.797 ServerApp] nbclassic | extension was successfully linked.
[I 2021-08-01 21:01:42.846 LabApp] JupyterLab extension loaded from /home/username/anaconda3/lib/python3.8/site-packages/jupyterlab
[I 2021-08-01 21:01:42.846 LabApp] JupyterLab application directory is /home/username/anaconda3/share/jupyter/lab
[I 2021-08-01 21:01:42.849 ServerApp] jupyterlab | extension was successfully loaded.
[I 2021-08-01 21:01:42.852 ServerApp] nbclassic | extension was successfully loaded.
[I 2021-08-01 21:01:42.852 ServerApp] Serving notebooks from local directory: /home/username
[I 2021-08-01 21:01:42.853 ServerApp] Jupyter Server 1.4.1 is running at:
[I 2021-08-01 21:01:42.853 ServerApp] http://localhost:8888/lab?token=3d46a4259293e2afc5f584cf2d62586c5c553fd37e55e775
[I 2021-08-01 21:01:42.853 ServerApp] or http://127.0.0.1:8888/lab?token=3d46a4259293e2afc5f584cf2d62586c5c553fd37e55e775
[I 2021-08-01 21:01:42.853 ServerApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).
[C 2021-08-01 21:01:42.877 ServerApp]
To access the server, open this file in a browser:
file:///home/username/.local/share/jupyter/runtime/jpserver-9804-open.html
Or copy and paste one of these URLs:
http://localhost:8888/lab?token=3d46a4259293e2afc5f584cf2d62586c5c553fd37e55e775
or http://127.0.0.1:8888/lab?token=3d46a4259293e2afc5f584cf2d62586c5c553fd37e55e775
[I 2021-08-01 21:01:48.429 LabApp] Build is up to date
[W 2021-08-01 21:01:49.469 ServerApp] Notebook Desktop/Link to foldername/ms-p/peroo/anl.ipynb is not trusted
[I 2021-08-01 21:01:52.346 ServerApp] Kernel started: 7bbe2308-8b30-4a4b-8b04-31aabe33d635
Traceback (most recent call last):
File "/home/username/anaconda3/lib/python3.8/runpy.py", line 194, in _run_module_as_main
return _run_code(code, main_globals, None,
File "/home/username/anaconda3/lib/python3.8/runpy.py", line 87, in _run_code
exec(code, run_globals)
File "/home/username/anaconda3/lib/python3.8/site-packages/ipykernel_launcher.py", line 15, in <module>
from ipykernel import kernelapp as app
File "/home/username/anaconda3/lib/python3.8/site-packages/ipykernel/__init__.py", line 2, in <module>
from .connect import *
File "/home/username/anaconda3/lib/python3.8/site-packages/ipykernel/connect.py", line 13, in <module>
from IPython.core.profiledir import ProfileDir
File "/home/username/anaconda3/lib/python3.8/site-packages/IPython/__init__.py", line 55, in <module>
from .core.application import Application
File "/home/username/anaconda3/lib/python3.8/site-packages/IPython/core/application.py", line 25, in <module>
from IPython.core import release, crashhandler
File "/home/username/anaconda3/lib/python3.8/site-packages/IPython/core/crashhandler.py", line 27, in <module>
from IPython.core import ultratb
File "/home/username/anaconda3/lib/python3.8/site-packages/IPython/core/ultratb.py", line 112, in <module>
from IPython.core import debugger
File "/home/username/anaconda3/lib/python3.8/site-packages/IPython/core/debugger.py", line 47, in <module>
from pdb import Pdb as OldPdb
File "/home/username/anaconda3/lib/python3.8/pdb.py", line 77, in <module>
import code
File "/home/username/Desktop/Projects/foldername/ms-p/peroo/code.py", line 535, in <module>
"execution_count": null,
NameError: name 'null' is not defined
[I 2021-08-01 21:01:55.348 ServerApp] AsyncIOLoopKernelRestarter: restarting kernel (1/5), new random ports
Traceback (most recent call last):
File "/home/username/anaconda3/lib/python3.8/runpy.py", line 194, in _run_module_as_main
return _run_code(code, main_globals, None,
File "/home/username/anaconda3/lib/python3.8/runpy.py", line 87, in _run_code
exec(code, run_globals)
File "/home/username/anaconda3/lib/python3.8/site-packages/ipykernel_launcher.py", line 15, in <module>
from ipykernel import kernelapp as app
File "/home/username/anaconda3/lib/python3.8/site-packages/ipykernel/__init__.py", line 2, in <module>
from .connect import *
File "/home/username/anaconda3/lib/python3.8/site-packages/ipykernel/connect.py", line 13, in <module>
from IPython.core.profiledir import ProfileDir
File "/home/username/anaconda3/lib/python3.8/site-packages/IPython/__init__.py", line 55, in <module>
from .core.application import Application
File "/home/username/anaconda3/lib/python3.8/site-packages/IPython/core/application.py", line 25, in <module>
from IPython.core import release, crashhandler
File "/home/username/anaconda3/lib/python3.8/site-packages/IPython/core/crashhandler.py", line 27, in <module>
from IPython.core import ultratb
File "/home/username/anaconda3/lib/python3.8/site-packages/IPython/core/ultratb.py", line 112, in <module>
from IPython.core import debugger
File "/home/username/anaconda3/lib/python3.8/site-packages/IPython/core/debugger.py", line 47, in <module>
from pdb import Pdb as OldPdb
File "/home/username/anaconda3/lib/python3.8/pdb.py", line 77, in <module>
import code
File "/home/username/Desktop/Projects/foldername/ms-p/peroo/code.py", line 535, in <module>
"execution_count": null,
NameError: name 'null' is not defined
[I 2021-08-01 21:01:58.362 ServerApp] AsyncIOLoopKernelRestarter: restarting kernel (2/5), new random ports
Traceback (most recent call last):
File "/home/username/anaconda3/lib/python3.8/runpy.py", line 194, in _run_module_as_main
return _run_code(code, main_globals, None,
File "/home/username/anaconda3/lib/python3.8/runpy.py", line 87, in _run_code
exec(code, run_globals)
File "/home/username/anaconda3/lib/python3.8/site-packages/ipykernel_launcher.py", line 15, in <module>
from ipykernel import kernelapp as app
File "/home/username/anaconda3/lib/python3.8/site-packages/ipykernel/__init__.py", line 2, in <module>
from .connect import *
File "/home/username/anaconda3/lib/python3.8/site-packages/ipykernel/connect.py", line 13, in <module>
from IPython.core.profiledir import ProfileDir
File "/home/username/anaconda3/lib/python3.8/site-packages/IPython/__init__.py", line 55, in <module>
from .core.application import Application
File "/home/username/anaconda3/lib/python3.8/site-packages/IPython/core/application.py", line 25, in <module>
from IPython.core import release, crashhandler
File "/home/username/anaconda3/lib/python3.8/site-packages/IPython/core/crashhandler.py", line 27, in <module>
from IPython.core import ultratb
File "/home/username/anaconda3/lib/python3.8/site-packages/IPython/core/ultratb.py", line 112, in <module>
from IPython.core import debugger
File "/home/username/anaconda3/lib/python3.8/site-packages/IPython/core/debugger.py", line 47, in <module>
from pdb import Pdb as OldPdb
File "/home/username/anaconda3/lib/python3.8/pdb.py", line 77, in <module>
import code
File "/home/username/Desktop/Projects/foldername/ms-p/peroo/code.py", line 535, in <module>
"execution_count": null,
NameError: name 'null' is not defined回答 3
Stack Overflow用户
回答已采纳
发布于 2021-08-01 18:11:41
看起来您的PYTHONPATH中有冲突。pdb试图导入code，但是它没有获得它的模块，而是看到导致失败的/home/username/Desktop/Projects/foldername/ms-p/peroo/code.py文件。将该文件重命名为其他文件，例如mycode.py。这可能是一个常见的问题，例如，您不能有一个名为statistics.py的文件，因为您将隐藏内置的statistics模块。这在对：Importing installed package from script raises "AttributeError: module has no attribute" or "ImportError: cannot import name"的回答中得到了很好的解释。
Stack Overflow用户
发布于 2022-11-14 06:07:21
我发现了同样的问题，并发现它只发生在Chrome标准浏览器上。Incognito或Firefox不存在ipykernel不连接的相同问题。
现在，我使用以下命令在firefox中打开jupyter：
jupyter lab --browser Firefox不知道浏览器有什么区别，但最近我遇到了一个问题，就是不能从chrome上访问本地文件，所以我们将研究这个问题，看看这是否解决了Chrome标准浏览器的问题。
Stack Overflow用户
发布于 2022-10-04 16:59:05
只需在分隔的文件夹中创建*.py文件和*.IPYNB文件即可。好了。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/68612081
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