Virtualenv-clone
virtualenv-clone /path/to/existing/venv /path/to/cloned/venv
The full documentation for virtualenv-clone is contained in /usr/share/doc/virtualenv-clone/README.gz.
virtualenv-clone was written by Edward George.
This manual page was written by Jan Dittberner <[email protected]>, for the Debian project (but may be used by others).