pyenv

Switch between multiple versions of Python easily. More information: https://github.com/pyenv/pyenv.

• List all available commands:
  pyenv commands
• List all Python versions under the ${PYENV_ROOT}/versions directory:
  pyenv versions
• List all Python versions that can be installed from upstream:
  pyenv install --list
• Install a Python version under the ${PYENV_ROOT}/versions directory:
  pyenv install {{2.7.10}}
• Uninstall a Python version under the ${PYENV_ROOT}/versions directory:
  pyenv uninstall {{2.7.10}}
• Set Python version to be used globally in the current machine:
  pyenv global {{2.7.10}}
• Set Python version to be used in the current directory and all directories below it:
  pyenv local {{2.7.10}}