pyenv-virtualenv (rather than Attention) Is All You Need

As far as I know, pyenv-virtualenv is the best Python version management tool.

Have you ever experienced any of these before?

• Conflict between pip and co*da in an environment.
• Forgot to change the environment with "co*da activate".
• When using pyenv, you want to create multiple virtual environments with a single Python version.

If any of these statements apply to you, I highly recommend pyenv-virtualenv.

Source
pyenv : https://github.com/pyenv/pyenv
pyenv-virtualenv : https://github.com/pyenv/pyenv-virtualenv

Installation

For bash (Linux):

1. pyenv

git clone https://github.com/pyenv/pyenv.git ~/.pyenv
echo 'export PYENV_ROOT="$HOME/.pyenv"' >> ~/.bashrc
echo 'command -v pyenv >/dev/null || export PATH="$PYENV_ROOT/bin:$PATH"' >> ~/.bashrc
echo 'eval "$(pyenv init -)"' >> ~/.bashrc
source ~/.bashrc

2. pyenv-virtualenv

git clone https://github.com/pyenv/pyenv-virtualenv.git $(pyenv root)/plugins/pyenv-virtualenv
echo 'eval "$(pyenv virtualenv-init -)"' >> ~/.bashrc
source ~/.bashrc

For zsh (Mac):

0. update

brew update

1. pyenv

brew install pyenv
echo 'export PYENV_ROOT="${HOME}/.pyenv"' >> ~/.zshrc
echo '[[ -d $PYENV_ROOT/bin ]] && export PATH="${PYENV_ROOT}/bin:$PATH"' >> ~/.zshrc
echo 'eval "$(pyenv init -)"' >> ~/.zshrc
source ~/.zshrc

2. pyenv-virtualenv

brew install pyenv-virtualenv
echo 'eval "$(pyenv virtualenv-init -)"' >> ~/.zshrc
source ~/.zshrc

Usage

pyenv

1. Check installable Python versions first

pyenv install -l

2. Install a Python version

pyenv install <python-version>

An example:

pyenv install 3.10.15

3. Check available Python versions

pyenv versions

4. Global setting

pyenv global <python-version>

An example:

pyenv global 3.10.15

pyenv-virtualenv

1. Create a virtual environment

pyenv virtualenv <python-version> <env-name>

An example:

pyenv virtualenv 3.10.15 proX

2. Check the created virtual environment (just in case)

pyenv versions

3. Local setting

mkdir <project-dir>
cd <project-dir>
pyenv local <env-name>

An example:

mkdir projectX
cd projectX
pyenv local proX

• Delete a virtual enviroment (if necessary):

pyenv uninstall <env-name>