ID Activity Title Status
29259 7 months ago Add tp_fastcall to PyTypeObject: support FASTCALL calling convention for all callable objects has patch has PR closed
34141 8 months ago Speed up pickling simple non-recusive values has PR closed
34017 8 months ago Tkinter CheckButton not working in EXE closed
23493 8 months ago optimize sort_keys in json module by using operator.itemgetter() has PR closed
34043 8 months ago Optimize tarfile uncompression performance has PR closed
34010 8 months ago tarfile stream read performance regression has PR closed
33945 8 months ago concurrent.futures ProcessPoolExecutor submit() blocks on results being written closed
18932 9 months ago Optimize selectors.EpollSelector.modify() has patch closed
28240 9 months ago Enhance the timeit module: display average +- std dev instead of minimum has patch has PR closed
4896 9 months ago Faster why variable manipulation in ceval.c closed
33737 9 months ago Multiprocessing not working closed
26251 9 months ago Use "Low-fragmentation Heap" memory allocator on Windows closed
33505 9 months ago Optimize asyncio.ensure_future by reordering if conditions has patch has PR closed
33639 9 months ago Use high-performance os.sendfile() in shutil.copy* has PR closed
1792 10 months ago o(n*n) marshal.dumps performance for largish objects with patch has patch has PR closed
33144 10 months ago random._randbelow optimization has patch has PR closed
33372 10 months ago Wrong calculation closed
33298 11 months ago Wrap only constants with _PyCode_ConstantKey() in the compiler. has PR closed
33299 11 months ago Return an object itself for some types in _PyCode_ConstantKey() has PR closed
28126 11 months ago Py_MEMCPY: Use memcpy on Windows? has PR closed
33265 11 months ago contextlib.ExitStack abuses __self__ has PR closed
28832 11 months ago Reduce memset in dict creation has patch closed
33200 11 months ago Optimize the empty set "literal" has PR closed
27938 11 months ago PyUnicode_AsEncodedString, PyUnicode_Decode: add fast-path for "us-ascii" encoding has patch has PR closed
32360 11 months ago Save OrderedDict imports in various stdlibs. has PR closed
33021 12 months ago Some fstat() calls do not release the GIL, possibly hanging all threads has patch has PR closed
26647 12 months ago ceval: use Wordcode, 16-bit bytecode has patch closed
32829 12 months ago Lib/ be more pythonic closed
32946 12 months ago Speed up import from non-packages has PR closed
32925 12 months ago AST optimizer: Change a list into tuple in iterations and containment tests has PR closed
32945 13 months ago sorted(generator) is slower than sorted(list-comprehension) closed
32859 13 months ago os.dup2() tests dup3() availability on each call has PR closed
31333 13 months ago Implement ABCMeta in C has PR closed
32221 13 months ago Converting ipv6 address to string representation using getnameinfo() is wrong. has PR closed
32828 13 months ago compress "True if bool(x) else False" expressions closed
32336 13 months ago Save OrderedDict import in argparse has PR closed
28685 13 months ago Optimizing list.sort() by performing safety checks in advance has patch has PR closed
32433 13 months ago Provide optimized HMAC digest has PR closed
32571 14 months ago Speed up and clean up getting optional attributes in C code has PR closed
32296 14 months ago Implement asyncio._get_running_loop() and get_event_loop() in C has PR closed
31179 14 months ago Speed-up dict.copy() up to 5.5 times. has PR closed
32503 14 months ago Avoid creating small frames in pickle protocol 4 has PR closed
32595 14 months ago Deque with iterable object as one object closed
32588 14 months ago Move _findvs into its own extension module has PR closed
32529 14 months ago Call readinto in shutil.copyfileobj has PR closed
32544 14 months ago Speed up hasattr(o, name) and getattr(o, name, default) has PR closed
32346 14 months ago Speed up slot lookup for class creation has patch has PR closed
31993 14 months ago pickle.dump allocates unnecessary temporary bytes / str has PR closed
32525 14 months ago Empty tuples are not optimized as constant expressions closed
17607 14 months ago missed peephole optimization (unnecessary jump at end of function after yield) closed
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