1. b9100e5 Issue #18473: Fixed pickle compatibility tests for optional modules. by Serhiy Storchaka · 9 years ago
  2. bfe1824 Issue #18473: Fixed 2to3 and 3to2 compatible pickle mappings. by Serhiy Storchaka · 9 years ago
  3. 9d1dbca Fix issue #19834: Support unpickling of exceptions pickled by Python 2. by Walter Doerwald · 11 years ago
  4. d9dfaa9 Issue #6137: The pickle module now translates module names when loading by Antoine Pitrou · 15 years ago