tree 88443fa6dc17b2f5b6106f8b78f581e6679a7269
parent b8940393e9be5be09920f28bfea0049e4255354b
author Tim Peters <tim.peters@gmail.com> 1030306339 +0000
committer Tim Peters <tim.peters@gmail.com> 1030306339 +0000
HG:extra convert_revision:svn%3A6015fed2-1504-0410-9fe1-9d1591cc4771/python/branches/legacy-trunk%4028453

Gave issubet() and issuperset() major speed boosts.  That's it for now!
Someone else may want to tackle the mutating operations similarly.