Python3, pyenv, venv Setup Cheatsheet

Shit, shit and shit! I hate to have to remember those commands when setting up my python environment on my MacOS and configuring it to 3.8.5.

So here you go, a cheatsheet to nail it forever!

Install pyenv

brew install pyenv

Set the path correctly

$ echo ‘PATH=$(pyenv root)/shims:$PATH’ >> ~/.zshrc

List locally installed versions

$ pyenv versions
system

List all available python versions from all repositories

pyenv install --list

Install specific version

pyenv install 3.8.5

Again, List locally installed versions

$ pyenv versions
* system (Set by /Users/you/.pyenv/version)
  3.8.5

Set python version as global version

pyenv global 3.8.5

Create venv environment

python -m venv venv

Activate venv environment

source ./venv/bin/activate

Update pip

pip install --upgrade pip
# or
python -m pip install --upgrade pip

Use a different local version of python for a specific project

mkdir my_project
pyenv local 3.4.5
cat .python-version # Just to check
python -m venv venv
source ./venv/bin/activate

Hope this nails it forever.

Reference: https://opensource.com/article/20/4/pyenv