| +++++++++++ |
| Python News |
| +++++++++++ |
| |
| What's New in Python 3.4.0 Alpha 1? |
| =================================== |
| |
| *Relase date: XX-XXX-2014* |
| |
| Core and Builtins |
| ----------------- |
| |
| - Issue #14783: Improve int() docstring and switch docstrings for str(), |
| range(), and slice() to use multi-line signatures. |
| |
| - Upgrade Unicode data (UCD) to version 6.2. |
| |
| - Issue #15379: Fix passing of non-BMP characters as integers for the charmap |
| decoder (already working as unicode strings). Patch by Serhiy Storchaka. |
| |
| - Issue #15144: Fix possible integer overflow when handling pointers as integer |
| values, by using `Py_uintptr_t` instead of `size_t`. Patch by Serhiy |
| Storchaka. |
| |
| - Issue #15965: Explicitly cast `AT_FDCWD` as (int). Required on Solaris 10 |
| (which defines `AT_FDCWD` as ``0xffd19553``), harmless on other platforms. |
| |
| - Issue #15839: Convert SystemErrors in `super()` to RuntimeErrors. |
| |
| - Issue #15448: Buffered IO now frees the buffer when closed, instead |
| of when deallocating. |
| |
| - Issue #15846: Fix SystemError which happened when using `ast.parse()` in an |
| exception handler on code with syntax errors. |
| |
| - Issue #15897: zipimport.c doesn't check return value of fseek(). |
| Patch by Felipe Cruz. |
| |
| - Issue #15801: Make sure mappings passed to '%' formatting are actually |
| subscriptable. |
| |
| Library |
| ------- |
| |
| - Issue #16114: The subprocess module no longer provides a misleading error |
| message stating that args[0] did not exist when either the cwd or executable |
| keyword arguments specified a path that did not exist. |
| |
| - Issue #16169: Fix ctypes.WinError()'s confusion between errno and winerror. |
| |
| - Issue #1492704: shutil.copyfile() raises a distinct SameFileError now if |
| source and destination are the same file. Patch by Atsuo Ishimoto. |
| |
| - Issue #13896: Make shelf instances work with 'with' as context managers. |
| Original patch by Filip Gruszczyński. |
| |
| - Issue #15417: Add support for csh and fish in venv activation scripts. |
| |
| - Issue #16123: IDLE - deprecate running without a subprocess. |
| Patch by Roger Serwy. |
| |
| - Issue #16089: Allow ElementTree.TreeBuilder to work again with a non-Element |
| element_factory (fixes a regression in SimpleTAL). |
| |
| - Issue #9650: List commonly used format codes in time.strftime and |
| time.strptime docsttings. Original patch by Mike Hoy. |
| |
| - Issue #16034: Fix performance regressions in the new `bz2.BZ2File` |
| implementation. Initial patch by Serhiy Storchaka. |
| |
| - `pty.spawn()` now returns the child process status returned by `os.waitpid()`. |
| |
| - Issue #15756: `subprocess.poll()` now properly handles `errno.ECHILD` to |
| return a returncode of 0 when the child has already exited or cannot be waited |
| on. |
| |
| - Issue #15323: Improve failure message of `Mock.assert_called_once_with()`. |
| |
| - Issue #16064: ``unittest -m`` claims executable is "python", not "python3". |
| |
| - Issue #12376: Pass on parameters in `TextTestResult.__init__()` super call. |
| |
| - Issue #15222: Insert blank line after each message in mbox mailboxes. |
| |
| - Issue #16013: Fix `csv.Reader` parsing issue with ending quote characters. |
| Patch by Serhiy Storchaka. |
| |
| - Issue #15421: Fix an OverflowError in `Calendar.itermonthdates()` after |
| `datetime.MAXYEAR`. Patch by Cédric Krier. |
| |
| - Issue #16112: platform.architecture does not correctly escape argument to |
| /usr/bin/file. Patch by David Benjamin. |
| |
| - Issue #15970: `xml.etree.ElementTree` now serializes correctly the empty HTML |
| elements 'meta' and 'param'. |
| |
| - Issue #15842: The `SocketIO.{readable,writable,seekable}` methods now raise |
| ValueError when the file-like object is closed. Patch by Alessandro Moura. |
| |
| - Issue #15876: Fix a refleak in the `curses` module: window.encoding. |
| |
| - Issue #15881: Fix `atexit` hook in `multiprocessing`. Original patch by Chris |
| McDonough. |
| |
| - Issue #15841: The readable(), writable() and seekable() methods of |
| `io.BytesIO` and `io.StringIO` objects now raise ValueError when the object |
| has been closed. Patch by Alessandro Moura. |
| |
| - Issue #16126: PyErr_Format format mismatch in _testcapimodule.c. |
| Patch by Serhiy Storchaka. |
| |
| - Issue #15447: Use `subprocess.DEVNULL` in webbrowser, instead of opening |
| `os.devnull` explicitly and leaving it open. |
| |
| - Issue #15509: `webbrowser.UnixBrowser` no longer passes empty arguments to |
| Popen when ``%action`` substitutions produce empty strings. |
| |
| - Issue #12776, issue #11839: Call `argparse` type function (specified by |
| add_argument) only once. Before, the type function was called twice in the |
| case where the default was specified and the argument was given as well. This |
| was especially problematic for the FileType type, as a default file would |
| always be opened, even if a file argument was specified on the command line. |
| |
| - Issue #15906: Fix a regression in argparse caused by the preceding change, |
| when ``action='append'``, ``type='str'`` and ``default=[]``. |
| |
| Extension Modules |
| ----------------- |
| |
| - Issue #16113: Added sha3 module based on the Keccak reference implementation |
| 3.2. The `hashlib` module has four additional hash algorithms: `sha3_224`, |
| `sha3_256`, `sha3_384` and `sha3_512`. As part of the patch some common |
| code was moved from _hashopenssl.c to hashlib.h. |
| |
| Tests |
| ----- |
| |
| - Issue #16115: Add some tests for the executable argument to |
| subprocess.Popen(). Initial patch by Kushal Das. |
| |
| - Issue #15304: Fix warning message when `os.chdir()` fails inside |
| `test.support.temp_cwd()`. Patch by Chris Jerdonek. |
| |
| - Issue #15802: Fix test logic in `TestMaildir.test_create_tmp()`. Patch by |
| Serhiy Storchaka. |
| |
| - Issue #15557: Added a test suite for the webbrowser module, thanks to Anton |
| Barkovsky. |
| |
| Build |
| ----- |
| |
| - Issue #15923: Fix a mistake in ``asdl_c.py`` that resulted in a TypeError |
| after 2801bf875a24 (see #15801). |
| |
| - Issue #16135: Remove OS/2 support. |
| |
| - Issue #15819: Make sure we can build Python out-of-tree from a readonly source |
| directory. (Somewhat related to Issue #9860.) |
| |
| Documentation |
| ------------- |
| |
| - Issue #16115: Improve subprocess.Popen() documentation around args, shell, |
| and executable arguments. |
| |
| - Issue #13498: Clarify docs of os.makedirs()'s exist_ok argument. Done with |
| great native-speaker help from R. David Murray. |
| |
| - Issue #15533: Clarify docs and add tests for `subprocess.Popen()`'s cwd |
| argument. |
| |
| - Issue #15979: Improve timeit documentation. |
| |
| - Issue #16036: Improve documentation of built-in `int()`'s signature and |
| arguments. |
| |
| - Issue #15935: Clarification of `argparse` docs, re: add_argument() type and |
| default arguments. Patch contributed by Chris Jerdonek. |
| |
| - Issue #11964: Document a change in v3.2 to the behavior of the indent |
| parameter of json encoding operations. |
| |
| Tools/Demos |
| ----------- |
| |
| |
| **(For information about older versions, consult the HISTORY file.)** |