Patch #1675981: remove unreachable code from ty...
Patch #1680015: Don't modify __slots__ tuple if...
Patch #1462488: prevent a segfault in object_re...
Bug #1675967: re patterns pickled with older Py...
Patch #1489771: update syntax rules in Python R...
Patch #1675981: remove unreachable code from ty...
Patch #1680015: Don't modify __slots__ tuple if...
Patch #1462488: prevent a segfault in object_re...