Published May-13-2020
Install pyenv
and pyenv-virtualenv
thru Homebrew
~$ brew update
~$ brew install pyenv
~$ brew install pyenv-virtualenv
Add the following lines to the end of the .zshrc
file in your root directory (~
)
export PYENV_ROOT="$HOME/.pyenv"
export PATH="$PYENV_ROOT/bin:$PATH"
export PIPENV_PYTHON="$PYENV_ROOT/shims/python"
plugin=(
pyenv
)
eval "$(pyenv init -)"
eval "$(pyenv virtualenv-init -)"
Reload the .zshrc
file to apply the changes made
~$ source ~/.zshrc
See all available versions for pyenv
~$ pyenv install --list
Available versions:
2.1.3
2.2.3.
2.3.7
...
Install a Python version from the list above. Note that this may take some time to complete
~$ pyenv install 3.5.6
Check on the installed pyenv
Python versions
~$ pyenv versions
* system (set by /User/user/.pyenv/shims/version)
3.5.6
Switch the global Python to a specific version
~$ pyenv global 3.5.6
~$ python -V
Python 3.5.6
Switch back the global Python to the system version
~$ pyenv global system
~$ python -V
Python 3.7.7
You can also set a project-specific version of Python
~$ pyenv global system
~$
~$ mkdir project
~$ cd project
project$ pyenv local 3.5.6
project$ python -V
Python 3.5.6
project$ cd ..
~$ python -V
Python 3.7.7
Create a virtualenv for the Python version used for pyenv
~$ pyenv virtualenv 3.5.6 venv35
...
~$ pyenv activate venv35
(venv35) ~$ pyenv deactivate
~$
Check on the installed pyenv
virtualenvs
~$ pyenv virtualenvs
venv35 (created from /Users/mari/.pyenv/shims/versions/3.5.6)
Great instructions !