Installing vpython - python

I have installed vpython on the anaconda IDE. However when I import it and use a simple command
import vpython as v
v.sphere()
Nothing appears. How do I rectify this?

Are you on RHEL or Ubuntu? You might want to try reinstalling and making sure that the installation is correct. You can install from http://vpython.org/contents/download_linux.html

The person was using the newer vpython module, not the old visual module. See the first page of vpython.org. Perhaps you were not running in a Jupyter notebook? At the time the question was posted, the vpython module only worked when run in a Jupyter notebook, though now it can be used outside a Jupyter notebook.

Related

Open Jupyter in VSCode: TypeError: Cannot read properties of undefined (reading 'makeSettings')

System: MacOSX 10.15,
VSCode Version: 1.67.2,
Python Kernel Version: 3.8.13 (Conda base).
I created a new Jupyter notebook in my VSCode using command shortcut and selected the right python kernel showed above. The empty notebook page is well loaded and no error message occurred.
But when I typed and ran any code in the cell, this error message showed up below the cell.
Then I clicked the "log" link and the error log showed up and it was like this:
And hence I couldn't run any code in the notebook cell. Then I changed to another Python Kernel (3.9.12) of the same notebook, it showed the same error message:
Please give me a solution to overcome this bug.
Update: I tried to reinstall pyzmq to an older version in the canda base environment and it didn't change anything. Then I typed command jupyter --version and everything is well installed.
Update: I have searched on Github Issues of VSCode. There are two similar issues that are all caused by some extensions, one is called "Gitduck"(now renamed "duckly"), the other is "nur.Script". The link to these issues are here:
Cannot read property 'makeSettings' of undefined #834
Cannot read property 'makeSettings' of undefined #128458
But unfortunately, I never have installed any of these extensions in my VSCode. So it may be caused by a similar extension but I still don't know the name.
Finally, I use the command code --list-extensions to list all my installed extensions here, maybe helpful for filtering which extension is the bad guy:
Final Update: Today (05/31) I opened VSCode and tentatively created an empty Jupyter notebook, and this problem has gone away. I have done nothing, maybe VSCode's auto-update has solved this problem. Case closed.
You can try reinstalling the pyzmq module.
pip uninstall pyzmq
pip install pyzmq==19.0.2
Hope this helps you.

VS Code using Jupyter: Connecting to kernel: Python 3.6.9: Waiting for Jupyter Session to be idle

I am having trouble running my import statement in VS code Jupyter. I split them into individual cells. I find when I run
import numpy as np
the cell hangs and I get a message
Connecting to kernel: Python 3.6.9: Waiting for Jupyter Session to be idle
How do I fix this?
To solve it, I uninstalled the extension Jupyter notebook (which requires a reload), and then installed it.
This may be related to the extended version. I hope this article is helpful to you.
Alright so this one surprised me..
I was using Jupyter-like code cells "#%%" (see docs) to run jupyter notebook in VSCode. And I ran into the same issue as OP.
The error disappeared when I renamed my file, from "inspect.py" to "tmp.py".
I found my solution was to select the correct version of Python. I had 2 choices for Python 3.6.9. I chose the one called "base(Python 3.6.9)" which had a different location to "Python 3.6.9" and the base version worked. Something odd if going on here, maybe I should remove the other version?
For me, upgrading ipython to version 7.34.0 (from 7.32.0) fixed it. I'm using jedi version 0.18.1. Related
Update: this broke again for me when I upgraded my virtual environment to Python 3.8. I just upgraded my ipykernel package and now the notebook runs.

ImportError loading spacy in jupyter notebook

I got a problem I can't seem to figure out. The first time I imported Spacy into a Jupyter notebook I had no problems. It just imported it as I expected.
The second time I tried to import it (using a different notebook) I got:
ImportError: cannot import name 'prefer_gpu' from 'thinc.api' (C:\python-environments\nlp\lib\site-packages\thinc\api.py)
So I tried to restart the kernel and tried it again (thinking that might be the issue). That did not solve it. Also trying to run the same cell that imported Spacy in the first notebook also throws the error now after it went well the first time.
It sounds like you have an old version of Thinc somewhere; try uninstalling and reinstalling Thinc.
Another thing to check is if you're running in the right Python environment. Sometimes Jupyter notebooks pull in a different environment than the one you're expecting in non-obvious ways. There was a thread in spaCy discussions about this recently. You can run this command to check which Python executable is being used in the notebook and make sure it's the one you think it is:
import sys
print(sys.executable)
I had a similar issue, followed the git hub link, created a new environment, and installed all required packages, and it resolved my issue. I'm using Visual code, so I had to install other dependencies since VC uses this as a conda environment as a base for my code implementation

Anaconda Import error, circular import error

I'm trying to use anaconda to setup an environment for jupyter notebook. It's not going well... I've got everything working without anaconda (just on the normal windows terminal). On Anaconda terminal however, whenever I try to install jupyter notebook it gives me an import error (could be circular issue it says). I also cannot open anaconda navigator through either the app or command prompt. I have followed documentation and this video. Please any help would be greatly appreciated, I am going to try uninstalling anaconda and then seeing if that gets me any results...
What is the library's name are you trying to import? I am guessing 'jupyter'
Checking your local filenames might be useful. If any files in your project involve the word that is in the import statement, that could prevent the actual jupyter library being imported.
I had the same problem, tried to import numpy and got a similar error. Turns out that I had a file called 'numpy.py' in my project directory. I renamed it and solved the problem.
Try to reset pyzmq by doing the following:
pip uninstall pyzmq
pip install pyzmq

IPython notebook: auto-completion doesn't work after dot operators

I'm novice at IPython and I've got a problem with autocompletion.
Tab autocompletion doesn't work properly.
It works after imports:
import<tab>
But tab completion doesn't work after dot operators. As example:
import numpy as np
np.<tab>
Meanwhile this example works well for IPython at console.
Package pyreadline is up-to-date. I tried different browsers. I reinstalled IPython and pyreadlines. But it didn't helped.
If you write things in the same cell, it's perfectly normal. Until you've run the import line, np is not defined.
Run the cell once, or run the import statement in a previous cell and autocomplete should work.
Found the solution in an answer I found on the web:
"I've just installed the latest JEDI then helped me to solve that issue, here's the command when using Anaconda":
conda install - c anaconda jedi
"Or you might need to try this, copy this line on the top of your jupyter notebook":
% config Completer.use_jedi = False
"In my case I installed miniconda on Debian Linux and most likely had a problem with the previous Python that was included with Debian. The following lines solved my problem":
conda update conda
conda update--all

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