On Mon, 17 Jan 2011 23:37:07 +0100 brett.cannon <python-checkins at python.org> wrote: > + > +To undo a patch, do:: > + > + patch -R -p0 < patch.diff > + Or, simply and more reliably, use the corresponding VCS incantation ("svn revert -R ." or "hg revert -a"). Regards Antoine.