pyenv global interpreter not working on windows10

Question

I have just installed pyenv following the installation guide pyenv-win, things goes smoothly, but i could not make the pyenv global python as the global interpreter

I have rehashed after installation using pyenv rehash

PS D:\> pyenv versions
  3.5.1
  3.6.2
  3.7.7
* 3.8.2 (set by C:\Users\xxx\.pyenv\pyenv-win\version)

results

> python --version
> 3.8.4

# expected
> 3.8.2

therefore, I am not able to use virtualenv with the pyenv installed python interpreter

virtualenv py382-djangodev --python=3.8.2
The path 3.8.2 (from --python=3.8.2) does not exist

Answer 1

In windows NT, the PATH variable is a combined result of the system and user variables:

The Path is constructed from the system path, which can be viewed in the System Environment Variables field in the System dialog box. The User path is appended to the system path

Shims PATH are defined in the user variables, so make sure your host python interpreter path is not defined in your system path

Answer 2

Remove all python versions (like 3.8.4 in your case) not installed using pyenv. I did using Control Panel in Windows. Then what you set as the global version using pyenv will be the true global version.

Answer 3

I had the same issue which I finally solved:

1 - Uninstall Python (your current version when you type the command python -V)

2 - Install pyenv-win and add it to the PATH (here are some optional steps to install it via chocolatey, which adds it directly to the PATH)

2.2 - Install chocolatey

2.3 - In an administrator powershell run: choco install pyenv-win

3 - Start menu (windows key) -> Manage application execution aliases -> disable aliases related to python

4 - install the desired python version via pyenv: pyenv install DESIRED VERSION NUMBER

5- run pyenv rehash

6 - set it as global pyenv global DESIRED VERSION NUMBER

7 - you sould see the desired version by running the command python -V

Answer 4

To troubleshoot Pyenv and python conflict on Windows (also for other OS; simply replace PS command Get-Command python with bash command which python that identifies location of Python executable.), follow these steps to ensure Python is running from intended source (we need pyenv shims like in last step 5):

1. Determine current Python executable source:

   • Run Get-Command python or (Get-Command python).Source in PowerShell.
   • If source points to directory like C:\Users\username\AppData\Local\Programs\Python\Python310 or in my case C:\msys64\mingw64\bin.

2. Remove conflicting Python source directory from environment variables:

   • Press Win + S to search.
   • Type edit environment variables for your account.
   • Open and click Environment Variables... button.
   • Locate Path variable for both user and system, then click edit button.
   • Find directory of Python source identified in step 1 (Get-Command python, source).
   • Delete this variable from both user and system environment variables.

3. Verify Python command results in an error:

   • Open a new cmd and type python. It should return an error since conflicting Python source dir has been removed and there is not any python executable. If python is executed check step 1 (Get-Command python, source) and Environment Variables on your system.

4. Set up environment variables for Pyenv:

   • Add the following directories to your Path environment variable (replace your_username with your actual OS username):
     • C:\Users\your_username\.pyenv\pyenv-win\bin
     • C:\Users\your_username\.pyenv\pyenv-win\shims

5. Reopen cmd and check if Pyenv is properly set up:

   • Type python and verify that Pyenv (shims dir) is being used by repeating step 1 (Get-Command python, source). The result should show the Pyenv paths like:

     ➜ ~  Get-Command python
     Source   
     C:\Users\your_username\.pyenv\pyenv-win\shims\...
     

Answer 5

Deinstalling everything connected to python (except pyenv) and using pyenv only worked for me.