python性能增强工具shedskin 0.3版发布

http://code.google.com/p/shedskin/ Shed Skin 0.3 - support for 3 new standard library modules (now about 20 in total): - itertools (jeremie roquet) - heapq (jeremie roquet) - csv (converted using shedskin) - 4 new example programs (now 44 in total!): - maximum weighted matching algorithm (joris van rantwijk) - kanoodle: knuth's dancing links (david austin) - bidirectional dijkstra algorithm (from networkx, uses heapq) - barnes-hut force calculation - improved type inference (scalability, bugfixes, major cleanup) - support for 'map', 'filter', 'reduce' and 'next' - support for 'with' statement (jeremie roquet) - support for 'key' argument of 'sorted' (and 'list.sort') - reorganized codebase, distutils setup.py (thomas spura) - optimized list indexing (joris van rantwijk) - optimized addition of 1-length lists and strings - improved forward referencing of variables/functions - avoid GCC warnings after 'shedskin -e' - support for passing keyword arguments to extension modules - optimized list slicing - ignore blocks surrounded by #{ and #} (mike schrick) - add --makefile option (mike schrick) - several cleanups, removing about 100 lines again - large amount of bugfixes