.. bpo: 23573 .. date: 8223 .. nonce: HdJPs7 .. release date: 2015-07-26 .. section: Core and Builtins Restored optimization of bytes.rfind() and bytearray.rfind() for single-byte argument on Linux. .. .. bpo: 24569 .. date: 8222 .. nonce: bqh6PQ .. section: Core and Builtins Make PEP 448 dictionary evaluation more consistent. .. .. bpo: 24583 .. date: 8221 .. nonce: Ooq0Tn .. section: Core and Builtins Fix crash when set is mutated while being updated. .. .. bpo: 24407 .. date: 8220 .. nonce: GmCBB3 .. section: Core and Builtins Fix crash when dict is mutated while being updated. .. .. bpo: 24619 .. date: 8219 .. nonce: cnfZGo .. section: Core and Builtins New approach for tokenizing async/await. As a consequence, it is now possible to have one-line 'async def foo(): await ..' functions. .. .. bpo: 24687 .. date: 8218 .. nonce: 0UaXFe .. section: Core and Builtins Plug refleak on SyntaxError in function parameters annotations. .. .. bpo: 15944 .. date: 8217 .. nonce: 4GuwqX .. section: Core and Builtins memoryview: Allow arbitrary formats when casting to bytes. Patch by Martin Panter. .. .. bpo: 23441 .. date: 8216 .. nonce: JXt2Yt .. section: Library rcompleter now prints a tab character instead of displaying possible completions for an empty word. Initial patch by Martin Sekera. .. .. bpo: 24683 .. date: 8215 .. nonce: aJdWEv .. section: Library Fixed crashes in _json functions called with arguments of inappropriate type. .. .. bpo: 21697 .. date: 8214 .. nonce: jpATha .. section: Library shutil.copytree() now correctly handles symbolic links that point to directories. Patch by Eduardo Seabra and Thomas Kluyver. .. .. bpo: 14373 .. date: 8213 .. nonce: Je0yDg .. section: Library Fixed segmentation fault when gc.collect() is called during constructing lru_cache (C implementation). .. .. bpo: 24695 .. date: 8212 .. nonce: QjZzFb .. section: Library Fix a regression in traceback.print_exception(). If exc_traceback is None we shouldn't print a traceback header like described in the documentation. .. .. bpo: 24620 .. date: 8211 .. nonce: rrnxB- .. section: Library Random.setstate() now validates the value of state last element. .. .. bpo: 22485 .. date: 8210 .. nonce: HvJf6T .. section: Library Fixed an issue that caused `inspect.getsource` to return incorrect results on nested functions. .. .. bpo: 22153 .. date: 8209 .. nonce: 6n6yld .. section: Library Improve unittest docs. Patch from Martin Panter and evilzero. .. .. bpo: 24580 .. date: 8208 .. nonce: AGi4Gm .. section: Library Symbolic group references to open group in re patterns now are explicitly forbidden as well as numeric group references. .. .. bpo: 24206 .. date: 8207 .. nonce: ffkVHH .. section: Library Fixed __eq__ and __ne__ methods of inspect classes. .. .. bpo: 24631 .. date: 8206 .. nonce: uljPxM .. section: Library Fixed regression in the timeit module with multiline setup. .. .. bpo: 18622 .. date: 8205 .. nonce: i6nCCW .. section: Library unittest.mock.mock_open().reset_mock would recurse infinitely. Patch from Nicola Palumbo and Laurent De Buyst. .. .. bpo: 23661 .. date: 8204 .. nonce: 5VHJmh .. section: Library unittest.mock side_effects can now be exceptions again. This was a regression vs Python 3.4. Patch from Ignacio Rossi .. .. bpo: 24608 .. date: 8203 .. nonce: 0TndL0 .. section: Library chunk.Chunk.read() now always returns bytes, not str. .. .. bpo: 18684 .. date: 8202 .. nonce: S2es0F .. section: Library Fixed reading out of the buffer in the re module. .. .. bpo: 24259 .. date: 8201 .. nonce: vMAi1A .. section: Library tarfile now raises a ReadError if an archive is truncated inside a data segment. .. .. bpo: 15014 .. date: 8200 .. nonce: hwXwCH .. section: Library SMTP.auth() and SMTP.login() now support RFC 4954's optional initial- response argument to the SMTP AUTH command. .. .. bpo: 24669 .. date: 8199 .. nonce: kFThK0 .. section: Library Fix inspect.getsource() for 'async def' functions. Patch by Kai Groner. .. .. bpo: 24688 .. date: 8198 .. nonce: -yWfcO .. section: Library ast.get_docstring() for 'async def' functions. .. .. bpo: 24603 .. date: 8197 .. nonce: PyHyF5 .. section: Build Update Windows builds and OS X 10.5 installer to use OpenSSL 1.0.2d.