mirror of https://github.com/python/cpython
What's New in Python 3.3: Split improved and new modules, start to write a summary
This commit is contained in:
parent
8f17c1c00d
commit
636130ed65
|
@ -53,6 +53,18 @@ This article explains the new features in Python 3.3, compared to 3.2.
|
|||
release, so it's worth checking back even after reading earlier versions.
|
||||
|
||||
|
||||
Summary
|
||||
=======
|
||||
|
||||
Major changes since Python 3.2:
|
||||
|
||||
* 4 new modules: :mod:`faulthandler`, :mod:`ipaddress`, :mod:`lzma` and :mod:`venv`.
|
||||
* Syntax changes:
|
||||
|
||||
- ``u'unicode'`` syntax is accepted again
|
||||
- Add ``yield from`` syntax
|
||||
|
||||
|
||||
PEP 405: Virtual Environments
|
||||
=============================
|
||||
|
||||
|
@ -803,8 +815,54 @@ Builtin functions and types
|
|||
matching. For example, ``'ß'.casefold()`` returns ``'ss'``.
|
||||
|
||||
|
||||
New and Improved Modules
|
||||
========================
|
||||
New Modules
|
||||
===========
|
||||
|
||||
faulthandler
|
||||
------------
|
||||
|
||||
This new debug module contains functions to dump Python tracebacks explicitly,
|
||||
on a fault (a crash like a segmentation fault), after a timeout, or on a user
|
||||
signal. Call :func:`faulthandler.enable` to install fault handlers for the
|
||||
:const:`SIGSEGV`, :const:`SIGFPE`, :const:`SIGABRT`, :const:`SIGBUS`, and
|
||||
:const:`SIGILL` signals. You can also enable them at startup by setting the
|
||||
:envvar:`PYTHONFAULTHANDLER` environment variable or by using :option:`-X`
|
||||
``faulthandler`` command line option.
|
||||
|
||||
Example of a segmentation fault on Linux: ::
|
||||
|
||||
$ python -q -X faulthandler
|
||||
>>> import ctypes
|
||||
>>> ctypes.string_at(0)
|
||||
Fatal Python error: Segmentation fault
|
||||
|
||||
Current thread 0x00007fb899f39700:
|
||||
File "/home/python/cpython/Lib/ctypes/__init__.py", line 486 in string_at
|
||||
File "<stdin>", line 1 in <module>
|
||||
Segmentation fault
|
||||
|
||||
|
||||
ipaddress
|
||||
---------
|
||||
|
||||
The new :mod:`ipaddress` module provides tools for creating and manipulating
|
||||
objects representing IPv4 and IPv6 addresses, networks and interfaces (i.e.
|
||||
an IP address associated with a specific IP subnet).
|
||||
|
||||
(Contributed by Google and Peter Moody in :pep:`3144`)
|
||||
|
||||
lzma
|
||||
----
|
||||
|
||||
The newly-added :mod:`lzma` module provides data compression and decompression
|
||||
using the LZMA algorithm, including support for the ``.xz`` and ``.lzma``
|
||||
file formats.
|
||||
|
||||
(Contributed by Nadeem Vawda and Per Øyvind Karlsen in :issue:`6715`)
|
||||
|
||||
|
||||
Improved Modules
|
||||
================
|
||||
|
||||
abc
|
||||
---
|
||||
|
@ -1062,30 +1120,6 @@ API changes
|
|||
changed to match the order displayed by :func:`repr`.
|
||||
|
||||
|
||||
faulthandler
|
||||
------------
|
||||
|
||||
This new debug module contains functions to dump Python tracebacks explicitly,
|
||||
on a fault (a crash like a segmentation fault), after a timeout, or on a user
|
||||
signal. Call :func:`faulthandler.enable` to install fault handlers for the
|
||||
:const:`SIGSEGV`, :const:`SIGFPE`, :const:`SIGABRT`, :const:`SIGBUS`, and
|
||||
:const:`SIGILL` signals. You can also enable them at startup by setting the
|
||||
:envvar:`PYTHONFAULTHANDLER` environment variable or by using :option:`-X`
|
||||
``faulthandler`` command line option.
|
||||
|
||||
Example of a segmentation fault on Linux: ::
|
||||
|
||||
$ python -q -X faulthandler
|
||||
>>> import ctypes
|
||||
>>> ctypes.string_at(0)
|
||||
Fatal Python error: Segmentation fault
|
||||
|
||||
Current thread 0x00007fb899f39700:
|
||||
File "/home/python/cpython/Lib/ctypes/__init__.py", line 486 in string_at
|
||||
File "<stdin>", line 1 in <module>
|
||||
Segmentation fault
|
||||
|
||||
|
||||
ftplib
|
||||
------
|
||||
|
||||
|
@ -1155,25 +1189,6 @@ written on the :class:`~io.TextIOWrapper` object is immediately handled to its
|
|||
underlying binary buffer.
|
||||
|
||||
|
||||
ipaddress
|
||||
---------
|
||||
|
||||
The new :mod:`ipaddress` module provides tools for creating and manipulating
|
||||
objects representing IPv4 and IPv6 addresses, networks and interfaces (i.e.
|
||||
an IP address associated with a specific IP subnet).
|
||||
|
||||
(Contributed by Google and Peter Moody in :pep:`3144`)
|
||||
|
||||
lzma
|
||||
----
|
||||
|
||||
The newly-added :mod:`lzma` module provides data compression and decompression
|
||||
using the LZMA algorithm, including support for the ``.xz`` and ``.lzma``
|
||||
file formats.
|
||||
|
||||
(Contributed by Nadeem Vawda and Per Øyvind Karlsen in :issue:`6715`)
|
||||
|
||||
|
||||
math
|
||||
----
|
||||
|
||||
|
|
Loading…
Reference in New Issue