PyEnv

Installing this is optional by highly recommended. It will allow you to easily upgrade and swtich between different versions of python.

At the time of writing this guide, python is planning to release the next version of Python, version 3.12, on October 2nd, 2023. Getting PyEnv will allow you to upgrade your Python installation, and even use different versions of Python on different projects.

For Windows

PyEnv has a different ported version of the tool that you need to install from here

Follow PyEnv-for-Windows Installation Guide here to install it using PowerShell https://pyenv-win.github.io/pyenv-win/docs/installation.html#powershell

For macOS

You can run the following command in your terminal

curl https://pyenv.run | bash

OR

You can use Homebrew to install PyEnv, then you'll need to complete some post-installation steps, per the documentation here

---

Common Errors and Issues

Windows

I'm getting UnauthorizedAccess error when trying to install using PowerShell.

& : File C:\Users\yahya\install-pyenv-win.ps1 cannot be loaded because running scripts is disabled on this system. For
more information, see about_Execution_Policies at https:/go.microsoft.com/fwlink/?LinkID=135170.
At line:1 char:173
+ ... n.ps1" -OutFile "./install-pyenv-win.ps1"; &"./install-pyenv-win.ps1"
+ ~~~~~~~~~~~~~~~~~~~~~~~~~ 
 + CategoryInfo          : SecurityError: (:) [], PSSecurityException 
 + FullyQualifiedErrorId : UnauthorizedAccess

If you are getting this, then start Windows PowerShell with the “Run as administrator” option and run

Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope LocalMachine

Then run the Installation command again.