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Add what's new in Python 3.5
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‎README.md‎

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@@ -43,6 +43,7 @@ See the following lists for features from each version of CPython that have been
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- [What's New In Python 3.2](WhatsNewInPython32.md)
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- [What's New In Python 3.3](WhatsNewInPython33.md)
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- [What's New In Python 3.4](WhatsNewInPython34.md)
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- [What's New In Python 3.5](WhatsNewInPython35.md)
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## Upgrading from IronPython 2
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For details on upgrading from IronPython 2 to 3 see the [Upgrading from IronPython 2 to 3](Documentation/upgrading-from-ipy2.md) article.

‎WhatsNewInPython35.md‎

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# What's New In Python 3.5
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https://docs.python.org/3/whatsnew/3.5.html
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New Features
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============
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- [ ] [PEP 492][]: Coroutines with async and await syntax
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- [x] [PEP 465][]: A dedicated infix operator for matrix multiplication
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- [x] [PEP 448][]: Additional Unpacking Generalizations
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- [ ] [PEP 461][]: percent formatting support for bytes and bytearray
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- [ ] [PEP 484][]: Type Hints
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- [ ] [PEP 471][]: os.scandir() function – a better and faster directory iterator
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- [ ] [PEP 475][]: Retry system calls failing with EINTR
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- [x] [PEP 479][]: Change StopIteration handling inside generators
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- [ ] [PEP 485][]: A function for testing approximate equality
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- [ ] [PEP 486][]: Make the Python Launcher aware of virtual environments
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- [ ] [PEP 488][]: Elimination of PYO files
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- [ ] [PEP 489][]: Multi-phase extension module initialization
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Other Language Changes
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======================
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- [ ] Added the `"namereplace"` error handlers. The `"backslashreplace"` error handlers now work with decoding and translating.
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- [ ] The `-b` option now affects comparisons of `bytes` with `int`.
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- [ ] New Kazakh `kz1048` and Tajik `koi8_t` codecs.
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- [ ] Property docstrings are now writable. This is especially useful for `collections.namedtuple()` docstrings.
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- [ ] Circular imports involving relative imports are now supported.
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New Modules
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===========
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- [ ] `typing`
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- [ ] `zipapp`
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Improved Modules
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================
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- [ ] `argparse`
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- [ ] `asyncio`
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- [ ] `bz2`
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- [ ] `cgi`
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- [ ] `cmath`
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- [ ] `code`
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- [ ] `collections`
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- [ ] `collections.abc`
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- [ ] `compileall`
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- [ ] `concurrent.futures`
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- [ ] `configparser`
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- [ ] `contextlib`
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- [ ] `csv`
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- [ ] `curses`
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- [ ] `dbm`
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- [ ] `difflib`
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- [ ] `distutils`
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- [ ] `doctest`
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- [ ] `email`
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- [ ] `enum`
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- [ ] `faulthandler`
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- [ ] `functools`
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- [ ] `glob`
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- [ ] `gzip`
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- [ ] `heapq`
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- [ ] `http`
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- [ ] `http.client`
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- [ ] `idlelib and IDLE`
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- [ ] `imaplib`
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- [ ] `imghdr`
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- [ ] `importlib`
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- [ ] `inspect`
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- [ ] `io`
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- [ ] `ipaddress`
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- [ ] `json`
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- [ ] `linecache`
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- [ ] `locale`
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- [ ] `logging`
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- [ ] `lzma`
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- [ ] `math`
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- [ ] `multiprocessing`
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- [ ] `operator`
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- [ ] `os`
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- [ ] `pathlib`
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- [ ] `pickle`
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- [ ] `poplib`
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- [ ] `re`
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- [ ] `readline`
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- [ ] `selectors`
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- [ ] `shutil`
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- [ ] `signal`
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- [ ] `smtpd`
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- [ ] `smtplib`
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- [ ] `sndhdr`
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- [ ] `socket`
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- [ ] `ssl`
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- [ ] `sqlite3`
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- [ ] `subprocess`
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- [ ] `sys`
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- [ ] `sysconfig`
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- [ ] `tarfile`
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- [ ] `threading`
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- [ ] `time`
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- [ ] `timeit`
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- [ ] `tkinter`
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- [ ] `traceback`
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- [ ] `types`
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- [ ] `unicodedata`
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- [ ] `unittest`
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- [ ] `unittest.mock`
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- [ ] `urllib`
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- [ ] `wsgiref`
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- [ ] `xmlrpc`
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- [ ] `xml.sax`
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- [ ] `zipfile`
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Other module-level changes
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==========================
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- [ ] Many functions in the `mmap`, `ossaudiodev`, `socket`, `ssl`, and `codecs` modules now accept writable bytes-like objects.
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Deprecated
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==========
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- [ ] New Keywords: `async` and `await` are not recommended to be used as variable, class, function or module names. Introduced by PEP 492 in Python 3.5, they will become proper keywords in Python 3.7.
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- [ ] Deprecated Python Behavior: Raising the `StopIteration` exception inside a generator will now generate a silent `PendingDeprecationWarning`, which will become a non-silent deprecation warning in Python 3.6 and will trigger a `RuntimeError` in Python 3.7. See PEP 479: Change StopIteration handling inside generators for details.
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Deprecated Python modules, functions and methods
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================================================
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- [ ] The `formatter` module has now graduated to full deprecation and is still slated for removal in Python 3.6.
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- [ ] The `asyncio.async()` function is deprecated in favor of `ensure_future()`.
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- [ ] The `smtpd` module has in the past always decoded the DATA portion of email messages using the `utf-8` codec. This can now be controlled by the new _decode__data_ keyword to `SMTPServer`. The default value is `True`, but this default is deprecated. Specify the _decode__data_ keyword with an appropriate value to avoid the deprecation warning.
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- [ ] Directly assigning values to the `key`, `value` and `coded_value` of `http.cookies.Morsel` objects is deprecated. Use the `set()` method instead. In addition, the undocumented LegalChars parameter of `set()` is deprecated, and is now ignored.
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- [ ] Passing a format string as keyword argument _format__string_ to the `format()` method of the `string.Formatter` class has been deprecated.
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- [ ] The `platform.dist()` and `platform.linux_distribution()` functions are now deprecated. Linux distributions use too many different ways of describing themselves, so the functionality is left to a package.
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- [ ] The previously undocumented `from_function` and `from_builtin methods` of inspect.Signature are deprecated. Use the new `Signature.from_callable()` method instead.
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- [ ] The `inspect.getargspec()` function is deprecated and scheduled to be removed in Python 3.6.
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- [ ] The inspect `getfullargspec()`, `getcallargs()`, and `formatargspec()` functions are deprecated in favor of the `inspect.signature()` API.
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- [ ] `getargvalues()` and `formatargvalues()` functions were inadvertently marked as deprecated with the release of Python 3.5.0.
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- [ ] Use of `re.LOCALE` flag with str patterns or `re.ASCII` is now deprecated.
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- [ ] Use of unrecognized special sequences consisting of `'\'` and an ASCII letter in regular expression patterns and replacement patterns now raises a deprecation warning and will be forbidden in Python 3.6.
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- [ ] The undocumented and unofficial _use__load__tests_ default argument of the `unittest.TestLoader.loadTestsFromModule()` method now is deprecated and ignored.
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Removed
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=======
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- [ ] The `__version__` attribute has been dropped from the email package. The email code hasn’t been shipped separately from the stdlib for a long time, and the `__version__` string was not updated in the last few releases.
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- [ ] The internal `Netrc` class in the ftplib module was deprecated in 3.4, and has now been removed.
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- [ ] The concept of .pyo files has been removed.
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- [ ] The `JoinableQueue` class in the provisional `asyncio` module was deprecated in 3.4.4 and is now removed.
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[PEP 492]: https://www.python.org/dev/peps/pep-0492
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[PEP 465]: https://www.python.org/dev/peps/pep-0465
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[PEP 448]: https://www.python.org/dev/peps/pep-0448
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[PEP 461]: https://www.python.org/dev/peps/pep-0461
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[PEP 484]: https://www.python.org/dev/peps/pep-0484
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[PEP 471]: https://www.python.org/dev/peps/pep-0471
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[PEP 475]: https://www.python.org/dev/peps/pep-0475
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[PEP 479]: https://www.python.org/dev/peps/pep-0479
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[PEP 485]: https://www.python.org/dev/peps/pep-0485
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[PEP 486]: https://www.python.org/dev/peps/pep-0486
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[PEP 488]: https://www.python.org/dev/peps/pep-0488
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[PEP 489]: https://www.python.org/dev/peps/pep-0489

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