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I have a combination of this two questions on stackoverflow: How do I update a Python virtual environment with `venv` (in Python 3.3+) to use a newer version of Python?

python3 : The term 'python3' is not recognized as the name of a cmdlet, function, script file, or operable program

Currently, I have a virtual enviornment with the interpreter python 3.7.0 in visual studio code and I want to upgrade it to python 3.9.0. So for that I do the following line in the terminal (as mentioned in the first question):

python3.9 -m venv --upgrade

Then I am running in the error of the second question:

PS C:\Users\admin\Documents\Visual Studio 2017\Forecasts> python3.9 -m venv --upgrade python3.9 : The term 'python3.9' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again. At line:1 char:1

  • python3.9 -m venv --upgrade
  • CategoryInfo : ObjectNotFound: (python3.9:String) [], CommandNotFoundException
  • FullyQualifiedErrorId : CommandNotFoundException

what I am doing wrong here?

My python executers are stored in: C:\Users\admin\AppData\Local\Programs\Python\Python39

PV8
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  • Does this answer your question? [python3 : The term 'python3' is not recognized as the name of a cmdlet, function, script file, or operable program](https://stackoverflow.com/questions/54023954/python3-the-term-python3-is-not-recognized-as-the-name-of-a-cmdlet-function) – Kulasangar Apr 25 '23 at 13:00
  • When I list the question in my question, then it does not answer my question... – PV8 Apr 25 '23 at 13:34
  • Does `py -3.9 -m venv --upgrade` work for you? It sounds like you didn't add Python3.9 to PATH when you installed it which is why Python3.9 doesn't work. In that case its likely that `py -3.9` won't work either, but worth checking. Otherwise you need to update your PATH env variable or reinstall Python 3.9 and check the Add to PATH option. – nigh_anxiety Apr 26 '23 at 13:40

1 Answers1

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I have the following two versions of the python interpreter

Version Location
python3.7.9 E:\Programs\Python\Python37
python3.9.13 E:\Programs\Python\Python39

  1. Create a new TESTENV folder and use vscode to open it as a workspace.

  2. Use the following command in the terminal to create a virtual environment named testenv (python version is 3.7.9)

    E:\Programs\Python\Python37\python.exe -m venv testenv

    enter image description here

  3. Use the following command to upgrade the enc virtual environment to pyton999

    E:\Programs\Python\Python39\python.exe -m venv --upgrade E:\Desktop\TESTENV\testenv

    enter image description here

So on your machine the command should look like this:

C:\Users\admin\AppData\Local\Programs\Python\Python39\python.exe -m venv --upgrade path\to\your\venv(python3.7.0)

If the python version displayed in the Select Interpreter panel has not changed after executing the command, try restarting vscode or verify it with the code in the picture.

JialeDu
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