I've been using the Fermipy conda environment on Python 2.7.14 64-bit on macOS Catalina 10.15.5 and overnight received the error "r.start is not a function" when trying to connect to the Jyputer server through Vscode (if I try on Jupyter Notebook/Lab the server instantly dies). I had a bunch of clutter on my system so I ended up formatting it and reinstalling all the dependencies needed (such as Conda through Homebrew, Fermitools through Conda and Fermipy through the install script on their site), but still get the same error, although I was previously running python scripts just fine. It gives me no other error or output, if it did I would attach it here. This is the error I get.
Edit: I get the same error using any version of Python 2.7.XX and not for python 3.7.XX.
As answered here, https://github.com/microsoft/vscode-python/issues/12355#issuecomment-652515770
VSCode changed how it launches jupyter kernels, and the new method is incompatible with python 2.7.
Add this line to your VSCode settings.json file and restart.
"python.experiments.optOutFrom": ["LocalZMQKernel - experiment"]
I got the same message. (r.start is not a function.) I had an old uninstalled version of anaconda on the computer which had left behind a folder containing its python version. Jupyter was supposed to be running from new venv after setting both python and jupyter path in vscode. I fully deleted remaining files from old anaconda install - message went away and notebook ran fine. Maybe try getting rid of all conda stuff and pip install jupyter and anything else you need.
Related
I located a really weird behavior of Jupyter and caused me to reinstall it but the problem persisted.
I have a Windows machine where I have installed anaconda (the latest version). There are two environments:
(base) Which contains nothing special maybe seaborn pandas etc. and is on python version 3.8.12.
(tf-gpu) Which contains tensorflow-gpu and is on python version 3.9.7.
Mind you, these two environments are created directly from a fresh installation of anaconda, and I didn't touch anything except installing tensorflow-gpu.
When I launch Jupyter through Anaconda, it launches normally on the home folder "C:\User\user" for both environments i.e. correct packages installed and correct version of python on both. I can also launch an instance of Powershell through Anaconda or Windows, (always in home dir), and launch Jupyter both environments behave as they should (packages, python version). So far so good...
The problem starts when I want to launch Jupyter from a directory other than home dir. I keep all my project files in a separate partition (D:), thus I navigate to that directory through a cmd/powershell (launched through Anaconda or Win) and type "jupyter notebook". The notebooks open on that director and:
When the base env is selected the notebook reports a correct name "base"(os.environ['CONDA_DEFAULT_ENV']) and python version 3.8.12 (sys.version_info). Everything behave as base env was setup.
When the tf-gpu env is selected the notebook reports a correct name "tf-gpu" but I get a python version 3.8.12, which is completely wrong! It should be 3.9.7. I can't import tensorflow since I get an error. Essentially I am in the base env without knowing it.
I then check in the same cli window (tf-gpu) that launched jupyter and python --version reports 3.9.7 and of course can import tf run it etc.
Jupyter just reports the environment name but in reality it uses the base environment even though it launched from said env. How can this change?
Why does Jupyter works normally when launched from the user directory?
If this is not solved easily, what is a workaround? Jupyter doesn't recognize symbolic links, and thus I can not navigate to another directory if it is not a subdirectory of home.
Finally, I also tried adding the env as kernel through python -m ipykernel install --user --name tf-gpu --display-name "Tensorflow GPU (tf-gpu)", but it doesn't seem to change a thing.
Update 1:
Of course I activate the tf-gpu through conda activate tf-gpu and check the python version and tensorflow (correct results), the problem is when launching jupyter notebook. The notebook reports the tf-gpu env but wrong python version and tf is missing.
Update 2:
After some searching around it seems that jupyter notebook has much trouble selecting a python version if multiple versions of python are installed in the system (in my case 2, 1 on each environment environments). Which is ridiculous if you think that that's why we are using environments for...
The reason you are having this problem I’m guessing is because your launched jupyter notebook from your conda base environment. You will see a (base) in your comment prompt.
To remedy this, When you use the command prompt to launch, do conda activate tf-gpu before you launch Jupyter notebook, now check if your versions are correct.
What I did and worked was run ipython3 notebook in the environment which launched the notebook server and everything was working properly correct environment name and correct python version and packages (tensorflow is working as it should). This must have updated some configuration files since I can now run jupyter notebook from a different folder and the gpu-tfu env works correctly.
Please remember that these problems were occurring only if I was launching jupyter outside the home directory (C:\User\user) on a different partition. Also keep in mind that this is a Windows installation and more complicated things may be happening with user paths, environments, etc than in linux.
I have a VM running only Anaconda. There are no other available installations of Python. This is all I see when I run "Apps and Features" in Windows 10 and filter for Python (note that it is Python 3.7.4):
When I go to the Conda prompt and enter conda list, I see that I have openCV installed :
but it's with a version of Python 3.7.6:
However when I open VS Code and I set my Python Path to the version in the Anaconda folder: (C:\Users\Me\Anaconda3\Python.exe) and try to import OpenCV, I get the "module not found" error. When I create a new python file and run
help("modules")
I do not see OpenCV in the list below in the terminal even though its installed.
Any idea how this is happening? I just don't see a second installation of Python on my PC, but why am I seeing 3.7.4 and 3.7.6 and is this possibly causing my issue?
Edit: Added a picture of the error I get when trying to run it.
Install anaconda plugin in VSCode and select your conda environment in the bottom left of VSCode window.
If you didn't create a conda environment, the you will probably have installed the package in the base environment.
Edit: Reading the PyPi project, I found the right way to import opencv in python code.
import cv2
I fell like I'm might be doing something really silly here but I've been researching for 30 mins and can't find an answer.
I'm working in Pycharm on python version 3.7. In pycharm I have created a new project and within have set a venv with python 3.7 as the interpreter. I then went to settings and installed the jupyter meta package version 1.0.0. I got the message "Package 'jupyter' installed successfully."
When I go to create a new file however I don't have the option to create a jupyter file, only a .py file.
I've tried restarting my computer (I'm on a mac) and I have tried setting up the project in a conda environment, neither made any difference. I also thought am I actually installing jupyter-notebook so I then installed jupyterlab 1.2.4 and I still can't create a jupyter-notebook file.
Any ideas?
Thanks
Only the professional version of PyCharm supports Jupyter notebooks.
Here is a full tutorial on how to configure PyCharm to use Jupyter notebooks:
Jupyter notebook support in PyCharm
I was able to use jupyter notebook 4 days ago. The only thing that changed was there was a firefox version update.
After that the server crashes everytime .ipynb files are opened. Even the directory will have a server error. I tried it both on Firefox and Google Chrome, both browsers will crash the server.
My only kernel is python3 and it always says "Kernel Busy". I tried resetting my pc and the jupyter notebook, but nothing seems to work.
The console showed:
The last 2 lines are causing the crash but I don't know how to fix it
When I type conda install jupyter in the anaconda prompt, I get something before it finishes as shown below. Maybe it might have a cause as to why it is having issues:
I created a new python environment and installed python, matplotlib, pandas, jupyter and it still crashes
Please uninstall and re-install all the below items:
ipykernel
ipython
jupyter_client
jupyter_core
traitlets
ipython_genutils
Additionally, if you're going to install with conda, follow below command.
run conda clean -tipsy
This command will clean up conda caches before you start.
Reference:
https://github.com/jupyter/notebook/issues/1892
Do you let Jupyter start the browser? If so, disable that and start the browser manually. I don't see how the zmq error messages could be related to the browser startup, but since you say that the only change was a browser update, that's worth a shot.
Check which version of pyzmq is installed. If Jupyter Notebook and the kernel are in different conda envs, check both and make sure they are on the same version and build. Try upgrading or downgrading to different versions. According to Anaconda issue 8932, there are problems with pyzmq on Windows. And a new build for win32 was released about two weeks ago - though I would expect win64 builds to be used nowadays.
I also found some recommendations for a similar error message to yours in Spyder issue 6097. The first one is to try without firewall and/or antivirus. You might have picked up a new firewall rule unknowingly. Trying different versions of pyzmq is also mentioned there.
I am sharing this solution in case someone needs it in the future.
I have just faced the same problem a hour ago. This was the message I was getting in the terminal. And the jupyter keeps restarting.
ModuleNotFoundError: No module named 'html.entities'; 'html' is not a package
[I 00:44:32.436 NotebookApp] KernelRestarter: restarting kernel (1/5), keep random ports
After Searching through the internet when I can not find the solution. I fixed it by removing the .HTML files I had in the directory. After moving those file jupyter started working parfectly.
I just had a similar problem - for me, it was casued by a non-existing %temp% directory (I have %temp% mapped to a ram disk, and the temp folder on it wasn't created yet).
Creating the folder pointed to by %temp% solved the issue.
All my environments were working totally fine but suddenly after restarting the system, the jupyter notebook from an environment was not opening or it was suddenly crashing. Tried form anaconda prompt but getting "Unable to create Process...
All my DL dependencies were on this environment and I didn't want to create new environment completely installing all the required dependencies.
Solution: I opened the Anaconda Navigator and cloned old_env to new_env and it worked magically. I could able to open the jupyter notebook successfully and all dependencies were working fine. Hope it helps
I would like to use Jupyter notebook inside Pycharm. The project interpreter is a python2.7 from a virtual environment inside WSL (ubuntu 18.04).
The Jupiter package is correctly installed inside the virtual environment (I can run it by jupyter notebook).
My problem is that when I want to use Jupyter notebook inside Pycharm, I get the following error: Run Error Jupyter package is not installed (see picture).
Any idea what's going on here?
I had this problem in Python 3. Below are the steps I took to resolve the issue; I believe they should resolve the issue for you too:
I had Jupyter Lab installed. Pycharm only works with Jupyter Notebook. Long story short, if you have Jupyter Lab installed you need to uninstall all your packages using:
$ pip freeze | xargs pip uninstall -y
Restart your computer
Follow Jupyter Notebook installation instructions
Make sure WSL is set up through pycharm instructions: wsl pycharm instructions
In Pycharm, open an .ipynb file. Click the dropdown that says "Managed Jupyter server" It's right above the text editor. Select "configure Jupyter server". Check configured server.
In your wsl terminal, type jupyter notebook. Copy and paste the text that looks like: http://localhost:8888/?token=874asdf687asd6fasd8f74ds6f4s9d8f7sddf into the cofigured server box in Pycharm.
That's it. You should be able to run the jupyter cells in pycharm now.
I have Pycharm 2020.3 For me the issue was I was using a virtual environment with "inherit global site packages." I had Jupyter installed in global site packages but NOT the virtual environment.
Once I installed Jupyter within the virtual environment Jupyter notebook worked. Not sure why inheriting Jupyter from global packages wasn't working for me.
The above solution using a designated url with token seems to work with older versions of PyCharm. A simpler solution is to upgrade to the latest PyCharm. I no longer had an issue with the auto server using PyCharm 2019.3.2 (Mac)
I had this problem with Datalore plugin enabled on 2020.2 linux, running on bare metal but displaying to a remote X server (probably doesn't matter). My solution was to disable the Datalore plugin (it's enabled for professional pycharm by default).
This way I was still able to use the "managed" auto-start version with better integration / debugging vs the "configured" option (or at least with less hassle).
Note since it's been a year, my problem is probably different than OP.
This happened for me, when the interpreter was a remote one. I fixed this by changing the interpreter to one from a local env.
This can be done by selecting the Configure Jupyter Server.
I also meet this problem,and i solved it
i create the new project with the global sit-packages like below
then i meet the problem
i create the new project with no global sit-packages and install jupyter notebook in the virtualenv
then the problem is gone