Python Version Management & Pyenv

Python Version Management

Handling multiple Python versions can be a pain, especially when working on multiple projects that require different versions of Python.
Some tips and tricks to manage multiple Python versions effectively:

Python 3 supports easy command-line access to the Python interpreters using Py command. This also allows to use different versions of Python installed on the system without changing the system Python or updating the PATH variable.
```
# List all available Python versions
py -0

# Run a specific Python version
py -3.12 --version

# Install packages using pip for a specific Python version
py -3.12 -m pip install <package_name>
```
Use pyenv to manage multiple Python versions on a single machine. It allows to set the Python version on a per-project basis without actually changing the system Python or installing Python packages globally.

Pyenv is a Python version management tool that allows to easily switch between different versions of Python.
It helps install, manage and switch between multiple versions of Python on a single machine without conflicting with the system Python.
It allows to set the Python version on a per-project basis without actually changing the system Python or installing Python packages globally.

Follow the official pyenv-windows installation page to setup pyenv in windows.
Reference: Official pyenv-win Installation Guide

info

Pyenv version. To check pyenv is installed correctly and to check the version of pyenv.
```
pyenv --version
```
List all available Python versions that can be installed using pyenv.
```
pyenv install --list
```
Install a specific version of Python using pyenv.
```
pyenv install <python_version>
```
List all installed Python versions using pyenv.
```
pyenv versions
```
Set a specific version of Python as the global version using pyenv.
```
pyenv global <python_version>
```
Set a specific version of Python as the local version for a specific directory using pyenv.
```
pyenv local <python_version>
```
Remove a specific version of Python using pyenv.
```
pyenv uninstall <python_version>
```

Navigate to the project directory where the pyproject.toml file is located and set the local python version using pyenv.
```
pyenv local <python_version>
```
Create a virtual environment using poetry with the local python version set using pyenv.
```
poetry env use $(pyenv which python)
```
Alternatively, poetry install can be used to create a virtual environment with the local python version set using pyenv.
```
poetry install
```