1. 960b9b7 Move abc._Abstract into object by adding a new flag Py_TPFLAGS_IS_ABSTRACT, by Jeffrey Yasskin · 17 years ago
  2. 57bd60b Working on issue #1762: Brought by Jeffrey Yasskin · 17 years ago
  3. fd1c245 Fix issue 1747: allow classic classes to be checked for being subclasses of by Jeffrey Yasskin · 18 years ago
  4. 64c06e3 Backport of _abccoll.py by Benjamin Arangueren, issue 1383. by Guido van Rossum · 18 years ago
  5. b559113 Patch # 1026 by Benjamin Aranguren (with Alex Martelli): by Guido van Rossum · 18 years ago