VS Code can't find activated virtualenv - python

I am trying to run some Python code in Visual Studio Code. When I first save the file, say to fibonacci.py, I get a popup window that says,
Linter pylint is not installed.
It also displays three buttons: Install, Disable pylint, and Disable linting. If I click Install, I get the following error message:
$ /Users/me/.pyenv/versions/3.6.5/bin/python -m pip -U pylint
Could not find an activated virtualenv (required).
I can't see to get rid of this error message.
Here were the steps I took to set up my project:
Installed the Python 3.6.5 interpreter: pyenv install 3.6.5.
Created a directory for the project.
Changed to that directory and ran pyenv local 3.6.5 to set the interpreter for that folder. This created a .python-version file containing the string "3.6.5" as expected.
Also created a virtualenv by running pyenv virtualenv 3.6.5 py365 and pyenv activate py365.
Opened the directory in VS Code: code .
From the Command Palette, I selected Python: Select interpreter and selected the interpreter for the folder that I set above in step 3.
From the Command Palette, I then ran Python: Create Terminal to open a terminal window.
It's at this point that if I create a new file and save it as fibonacci.py that I get the Linter message and the subsequent error message when I try to install the linter.
What's confusing to me is that the Code documentation Activate an environment in the Terminal talks about selecting an interpreter but then it seems to refer to the interpreter as an environment too. I thought that those are two different things, the interpreter being the Python interpreter and the environment the virtual environment where the packages you want to use for your project are installed. The doc goes on to say you should use "Python: Create Terminal" to automatically activate the environment, but I did that in step 7 above.
Furthermore, the next paragraph "Where the extension looks for environments" says one of the locations is "Interpreters installed by pyenv". But as I said above, I used pyenv to specify the 3.6.5 interpreter which created the .python-version file in the project folder. Isn't this what the document is talking about?
What am I not understanding?

The problem was that I had this setting in my .bashrc file:
PIP_REQUIRE_VIRTUALENV=true
It should be set to false per this other stackoverflow question.

Related

Is Activate.ps1 required to add packages in venv? vscode

New to utilizing virtual environments. I understand to concept but not the complete execution within vscode.
I have read the vsCode guide on using Python venvs and the vscode guide on getting started with python
I'm not understanding the link between how the Terminal window displays its in the venv and how vscode shows its using the selected virtual interpreter. I want to make sure I know which one I am working in so that I can effetely manage packages.
These two images demonstrate my point. They both show me that vscode is using the .venv interpreter based on the blue region pointed by the red arrow. But the first image shows the Terminal is in the venv while the second image shows the Terminal is in the venv. This is confusing to me because when I use "pip" to install via the terminal I want to make sure its downloading the package to the right venv and not to global. I would assume if vscode is using the venv interpreter the Terminal should also default to the venv.
Do you have to just run the .\venv\Scripts\Activate.ps1 in the Terminal anytime you want to run "pip" to add a new package in your venv?
When the virtual environment name is displayed in front of your terminal directory, it means that your current terminal is using the activated virtual environment. At this time, directly using pip command will use the pip.exe in the virtual environment, and the installed package will also be installed in the virtual environment.
If the virtual environment is not activated, if your current terminal does not display the name of the virtual environment, directly using the pip command may use the pip.exe in the global environment, that is, the python version configured by the computer environment variable, and the package will also be installed under it.
If you're worried, you can use the full install command. For example, the following command uses the complete python interpreter path to ensure that the sklearn package is installed under the virtual environment .venv under folder py12.
e:\workspace\py12\.venv\Scripts\python.exe -m pip install sklearn
PS: If you choose a virtual environment interpreter, then creat a new terminal will automatically activate the environment. This is controlled by the setting below, which defaults to true.
"python.terminal.activateEnvironment": true,

Python package error even after installing

I'm using python on vs code.
I created a virtual environment. Activated it. Installed packages with pip but still in code it says no module name found error.
I assume by "activated it" you mean you have called its activate script within the shell? Then only the shell knows about your environment, you still need to tell VS Code where it is.
Press Ctrl+Shift+P to bring up the command palette, run command Preferences: Open Workspace Settings (JSON) and add the following line to set the Python interpreter of the workspace to the one in your virtual environment:
"python.defaultInterpreterPath": "path/to/your/venv/bin/python"

Module not found error in VS code despite the fact that I installed it

I'm trying to debug some python code using VS code. I'm getting the following error about a module that I am sure is installed.
Exception has occurred: ModuleNotFoundError
No module named 'SimpleITK'
File "C:\Users\Mido\Desktop\ProstateX-project\src\01-preprocessing\03_resample_nifti.py", line 8, in <module>
import SimpleITK as sitk
I installed the module using
sudo pip install SimpleITK
I know that it was installed because I was getting a similar error when I ran the code through the command line, and it was fixed by doing the above. I don't understand why VS code does not recognize that
After installing a new module via pip reloading vscode may work if vscode doesn't recognize it. To do this, make sure that the module is installed inside the virtual environment by creating and activating a virtualenv:
python3 -m venv env
source env/bin/activate
Make sure to use the correct way of installing a module with pip:
python3 -m pip install {new_module}
Replace the string "{new_module}" with your module name. After that, make sure to reload vscode by clicking Ctrl+Shift+P, and selecting Reload window.
Now vscode will know the new module and autocompletion works.
sudo pip install is most likely installing globally into a Python interpreter that is different than the one that you have selected in VS Code. Please select the Python interpreter you want to use and then install explicitly using that interpreter (if you're not using a virtual environment then use something like /path/to/python -m pip install SimpleITK, although I strongly recommend using a virtual environment and to not install packages globally).
In Mac, correctly selecting the Python Interpreter worked for me:
From within VS Code, select a Python 3 interpreter by opening the Command Palette (⇧⌘P), start typing the Python: Select Interpreter command to search, then select the command. You can also use the Select Python Environment option on the Status Bar if available (it may already show a selected interpreter, too):
No interpreter selected
The command presents a list of available interpreters that VS Code can find automatically, including virtual environments. If you don't see the desired interpreter, see Configuring Python environments.
Source :VS Code Select Interpreter
This error: your vscode use other python version. This solution change vscode use current python.
In terminal find current python version:
py --version
In vscode Press Ctrl+Shift+P then type:
Python: Select Interpreter
Select current python version
I ran into this problem with VSCode and resolved it by setting my Python interpreter within VSCode to the same as the one in my system path (type "echo %PATH%" on Windows and look for Python) via the process here: https://code.visualstudio.com/docs/python/python-tutorial#_select-a-python-interpreter
There are a lot of proposed answers that suggest changing the launch.json or the settings.json file. However, neither of these solutions worked for me.
My situation:
Is Python environment selected? yes
Does the Terminal recognize Python environment? yes
Can I run the Python code from the activated Terminal? yes
Does the code run w/o error when I use "Start Debugging"? yes
Does the code run when I click "Run Code"? no
The only solution that worked for me is to:
Open Windows Terminal (or cmd)
Activate environment: conda activate <environment_name>
Open Visual Studio Code from Terminal: code
Then, "Run Code" (#5) works without any issues.
Source:
"module not found error" in VS Code using Conda - l3d00m's answer
Faced similar issue and here is how I fixed it. Remember that there are multiple ways to run your code in VS code. And for each way you may end up with different interpreters and environments. For example:
1. Creating virtual env and installing libraries
In my case I opted into creating virtual environment and doing so outside of VS Code using command prompt:
python -m venv .plotting_test
Following that I activated it:
.plotting_test\Scripts\activate.bat
Following that I installed additional libraries:
python -m pip install matplotlib
Following that I made sure to see it was all installed ok:
python -m pip list
And I also checked where for current directory:
cd
2. Point VS Code & VS Code Code Runner to virtual environment
Opened vs code, closed previous workspaces, opened new folder, created test.py as I was starting new. Pressed ctrl + shift + p. Selected ```Python: Select Interpreter``:
Followed by + Enter interpreted path
Navigated to directory from last step from section 1. Found my virtual environment folder created in step one and pointed VS code to that version's python.exe in Scripts:
Verified I am pointed to such:
Saved as workspace so that I can create default workspace settings for this project:
In workspace settings files defined paths to my virtual environment created n step 1 for workspace interpreter & CODE RUNNER(!):
"settings": {
"python.defaultInterpreterPath": "C:/Users/yyguy/.plotting_test/Scripts/python.exe",
"code-runner.executorMap": {"python": "call C:/Users/yyguy/.plotting_test/Scripts/activate.bat && python -u"}
}
}
Reloaded window just to make sure (ctrl + shift + p) = "Developer: Reload Window"
Now run code and run python file should be execute under your specified envs:
Try running pip list in VS Code to check if the module is installed, next check if your python version is correct/supports that version of SimpleITK. It may be a problem with the python interpreter that you are using for VS Code (ie. the module may be installed on a different python instance than the one your VS Code is using)
Is Python environment selected?
Does the Terminal recognize the Python environment?
Can I run the Python code from the activated Terminal?
Does the code run w/o error when I use "Start Debugging"?
if the answer to the above is "yes."
Then,
Try running the Code using the option "Run python file in terminal" (in code runner extension). And assign a new shortcut for that for future use...
How to fix module not found error in Visual Studio code?
To Solve VSCode ModuleNotFoundError: No module named X Error Make sure you are running from the package folder (not from package/module ) if you want import module. calculations to work. You can also set the PYTHONPATH environment variable to the path to the package folder.
Once you have created a virtual environment, and installed your required packages in that environment, close VS code. For Windows platform, open command prompt and navigate to the folder where your virtual env folder is created. And then launch VS code from there using the command code .
For ex: My virtual env name is .imgenv, and its inside C:\py_stuff\projects
So, I navigate to C:\py_stuff\projects and then type code .
Now, your VS code should recognize the packages !
I just ran into the same issue. I found that if I selected all text before shift enter the script would compile as a file instead of as a single line.
I had the same problem. I bet you have a shebang statement at the top of your file.
If you do.
Visual Studios settings
Under "Code-runner->Code-runner: Respect Shebang" section or just do a search for "Code-runner: Respect Shebang"
Uncheck weather to respect Shebang to run code.
Now it will run under the virtual environment and find the modules that you installed using pip! :)
I struggled with this for a very long time, and had tried almost every other answer. I wasn't using pip, so that wasn't the issue. But still VS Code wasn't finding the modules that were installed in the Selected Interpreter.
Ultimately it came down to old conflicts that existed because I switched to miniconda, and VS Code was still looking for anaconda3.
I completely wiped VS Code and its associated files (cache, preference files, etc.) from my machine (some instructions), and installed a clean version.
This now syncs as expected with miniconda.
If you have different python versions installed, be sure you install module with right one.
python -m pip install <module>
or
python3 -m pip install <module>
Run your environment from a directory not in the users directory. I solved my problem running my environment from C:\Code\ProjectA\
I discovered my problem by running:
IMPORT os
Mycwd = os.getcwd()
PRINT(Mycwd)
.venv/Lib/SitePackages is the default directory where Vscode looks for Modules.
This directory is automatically created on creating .venv via the command Pallete.
External modules installed via pip are placed in this directory by default.
Place self created modules inside this folder manually.
For mac users
In the terminal check which python you are using by command which python. It will give you the path of the python interpreter path. After that type cmd shift P and type Python: Select interpreter.
After that select + Enter interpreter path and paste the path which you got after running the command which python.

Python path in VSCode

I have an Anaconda distribution installed on Mac OSX (10.14.2). With it, I installed VSCode which I'm to write python scripts. Recently, I've updated some environments in Anaconda and something happened with the configuration of the python path VSCode uses for its integrated terminal: when I run my code, an ImportError comes up for the joblib package that I now have installed in my conda environment (also happens for other packages), which doesn't happen when I run the same code in a regular terminal.
Using conda list in the integrated terminal gives me the correct list of packages for the environment I'm using, and conda env list indicates that indeed this specific environment should be active. However, I can see that that something is off, because in my normal terminal I get:
$ which python
python is /Users/Joris/anaconda3/envs/astro3/bin/python
python is /usr/bin/python
While in the VSCode terminal:
$ which python
python is /usr/bin/python
python is /Users/Joris/anaconda3/envs/astro3/bin/python
I've tried changing some of the VSCode settings, like manually pointing python.pythonPath and python.venvPath to my anaconda environment folders. (The setting python.terminal.activateEnvironment is set to true.) Also, reinstalling VSCode through the Anaconda distribution does not seem to help. So unfortunately, I can't seem to get VSCode to run python with my Anaconda environment which contains the packages I need.
Press (macOS): ⇧+⌘+P, (Linux/Windows: Ctrl+Shift+P) in VS Code.
Type: python select interpreter
Select /Users/Joris/anaconda3/envs/astro3/bin/python
Test if your lib is usable.

Start PyLint from correct anaconda environment in Visual Studio Code

I'm trying to make PyLint automagically use correct conda environment inside vscode but still getting import errors: [pylint] E0401:Unable to import 'django', although:
I'm starting vscode from correct environment. [1]
I have installed Python extension. [2]
I have set correct python.path. [3]
You have to install pylint in this conda environment.
Activate given environment with activate env_name (Windows) or source activate env_name.
Install pylint in this environment:
conda install pylint # or 'pip install pylint'
Finally, restart vscode.
Source: https://github.com/DonJayamanne/pythonVSCode/wiki/Troubleshooting-Linting
Even after correct installation of python and pylint faced the issue due to wrong configuration of pylintArgs in visual studio code.
With below user settings got the issue resolved
"python.linting.pylintArgs": [
"--load-plugins",
"pylint_django"
]
You just need to make sure your working within the same virtual environment you created with conda itself. Basically you need to enable the "Python: Enable Linting command". Normally at the bottom left hand corner, VS Code will tell you what environment you are working within. If you open VS Code via the anaconda-navigator GUI (even if you opened it with the right corresponding environment). VS Code, by default opens the editor using the (base) conda environment. This could perhaps be the confusion. The Linting is ironically doing just what it is intended to do. Via that prompt in that bottom left hand corner, just change the environment to the one you custom made for your project. Close the editor, and completely shut down the anaconda-navigator GUI. Just update & upgrade your system using the terminal (if you are using a Linux-based OS). Quickly update conda, just to make sure nothing goes wrong. Restart anaconda-navigator, and open VS Code. If you run the internal terminal of the editor, you will see it open via the (base) environment, and automatically it will change to the correct corresponding conda environment, doing so by itself;
source /home/user/anaconda3/bin/activate
(base) user#machine:~$ source /home/user/anaconda3/bin/activate
(base) user#machine:~$ conda activate your_env
(your_env) user#machine:~$
PS - I personally find using the Anaconda Navigator makes my life a lot more easier.
Maybe for further reading just swizz through VS Code Documentation https://code.visualstudio.com/docs/python/linting . HapPy HaCkiNG!

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