Force the virtual environment to be recreated

tox

  • Automate Python testing across multiple Python versions.
    Use tox.ini to configure environments and test command.
    More information: <https://github.com/tox-dev/tox>.
  • Trick copyright: tl;dr; <https://github.com/tldr-pages/tldr>

tox --recreate -e {{py27}}

click the source code to copy install tox on any operating system with command-not-found.com