Comment 4 for bug 1177720

Nobody except you seems to have used this DepCache.commit() The problem is that we do not set the child_pid attribute of the progress handler, thus failing. If we do this, we hit some more bugs, which I fixed in the attached patch.

Fixed in Debian git, commits:

http://anonscm.debian.org/gitweb/?p=apt/python-apt.git;a=commit;h=47dfb3fac23721f76fc3084835f2c3c6382777ce
http://anonscm.debian.org/gitweb/?p=apt/python-apt.git;a=commit;h=cd47e3e7e0a87ead87724d0120d408b7993e94c7