The following commit-ready patches have been waiting for review since May and earlier.It'd be great if someone could find the time to take a look. I'll be happy to incorporate feedback as necessary:
* http://bugs.python.org/issue1738 (filecmp.dircmp does exact match only)
* http://bugs.python.org/issue15955 (gzip, bz2, lzma: add option to limit output size)
* http://bugs.python.org/issue20177 (Derby #8: Convert 28 sites to Argument Clinic across 2 files)
I only wrote the patch for one file because I'd like to have feedback before tackling the second. However, the patches are independent so unless there are other problems this is ready for commit.