How To Activate a Pyenv

How To Activate a Pyenv

What is Pyenv?

Overview. Pyenv is a simple tool to manage multiple versions of Python. This tool helps in the following ways according to the official pyenv GitHub README documentation: It sets the global Python version on a per-user basis. It provides support for per-project Python versions.

How To Activate a Pyenv

First, install pyenv-virtualenv using Homebrew on macOS or the pyenv-installer script on Linux. Then, create a virtual environment using the ‘pyenv virtualenv’ command followed by the Python version and the name of the virtual environment. For example: pyenv virtualenv 3.8.

Frequently Asked Questions

How to set Python using pyenv?

To select a Pyenv-installed Python as the version to use, run one of the following commands:

  1. pyenv shell <version> — select just for current shell session.
  2. pyenv local <version> — automatically select whenever you are in the current directory (or its subdirectories)

How do I activate an existing venv?

This tells us that there is a venv folder directly in your home directory – in other words, a separate venv folder (meaning, a separate virtual environment) from the one that is in ~/Desktop/Directory/venv . Using the command source venv/bin/activate while in that directory, will activate that virtual environment.

How do I know if Pyenv is installed?

Run pyenv –version to check if the installation was successful.

How do I enable virtual environment with Pyenv?


  1. (OPTIONAL) Add pyenv virtualenv-init to your shell to enable auto-activation of virtualenvs. This is entirely optional but pretty useful. See “Activate virtualenv” below. $ echo ‘eval “$(pyenv virtualenv-init -)”‘ >> ~/.bashrc. …
  2. Restart your shell to enable pyenv-virtualenv. $ exec “$SHELL”

Where is Pyenv installed?

PROTIP: When pyenv is installed, a folder ~/. pyenv is created under your user $HOME folder. Within the shims folder are every Python command in every installed version of Python—python, pip, etc.

How to activate Python in Linux?

Start the virtual environment by activating with the command: source my_project/bin/activate. csh.

Should I use Pyenv or Conda?

Choosing the right environment management tool depends on your needs. If you need a simple, easy-to-use tool, venv might be the best choice. If you’re dealing with complex dependencies, Conda env is the way to go. If you need to switch between different Python versions, consider pyenv or virtualenv.

What is Pyenv used for?

Meet pyenv: a Simple Python Version Management tool. Previously known as Pythonbrew, pyenv lets you change the global Python version, install multiple Python versions, set directory (project)-specific Python versions, and yes create/manage virtual python environments (“virualenv’s”).

What is the difference between Pyenv and Pipenv?

pyenv. Pipenv is a tool for managing package dependencies and virtual environments for Python projects, as described above. pyenv is a tool for managing multiple Python versions and environments on the same machine.

Why do I need to activate venv?

Activate a virtual environment

Before you can start installing or using packages in your virtual environment you’ll need to activate it. Activating a virtual environment will put the virtual environment-specific python and pip executables into your shell’s PATH .