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Python 3.3.5rc2

Release Date: March 2, 2014

Python 3.3.5 was released on March 9th, 2014.

Python 3.3.5 includes fixes for these important issues:

and also fixes quite a few other bugs.

This release fully supports OS X 10.9 Mavericks. In particular, this release fixes an issue that could cause previous versions of Python to crash when typing in interactive mode on OS X 10.9.

Major new features of the 3.3 series, compared to 3.2

Python 3.3 includes a range of improvements of the 3.x series, as well as easier porting between 2.x and 3.x.

  • PEP 380, syntax for delegating to a subgenerator (yield from)
  • PEP 393, flexible string representation (doing away with the distinction between "wide" and "narrow" Unicode builds)
  • A C implementation of the "decimal" module, with up to 120x speedup for decimal-heavy applications
  • The import system (__import__) is based on importlib by default
  • The new "lzma" module with LZMA/XZ support
  • PEP 397, a Python launcher for Windows
  • PEP 405, virtual environment support in core
  • PEP 420, namespace package support
  • PEP 3151, reworking the OS and IO exception hierarchy
  • PEP 3155, qualified name for classes and functions
  • PEP 409, suppressing exception context
  • PEP 414, explicit Unicode literals to help with porting
  • PEP 418, extended platform-independent clocks in the "time" module
  • PEP 412, a new key-sharing dictionary implementation that significantly saves memory for object-oriented code
  • PEP 362, the function-signature object
  • The new "faulthandler" module that helps diagnosing crashes
  • The new "unittest.mock" module
  • The new "ipaddress" module
  • The "sys.implementation" attribute
  • A policy framework for the email package, with a provisional (see PEP 411) policy that adds much improved unicode support for email header parsing
  • A "collections.ChainMap" class for linking mappings to a single unit
  • Wrappers for many more POSIX functions in the "os" and "signal" modules, as well as other useful functions such as "sendfile()"
  • Hash randomization, introduced in earlier bugfix releases, is now switched on by default

More resources

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This is a production release. Please report any bugs you encounter.

Please proceed to the download page for the download.

Full Changelog

Files

Version Operating System Description MD5 Sum File Size GPG
Gzipped source tarball Source release 45a6adb9cca2a90eab9270d4eadb2e00 16881986 SIG
XZ compressed source tarball Source release f8564947f4e4604e500cd3b802ff821d 12105636 SIG
Mac OS X 32-bit i386/PPC installer Mac OS X for Mac OS X 10.5 and later 9c18fb0aa68cf3c17eaf63079295b6e3 19965085 SIG
Mac OS X 64-bit/32-bit installer Mac OS X for Mac OS X 10.6 and later 11d0a88e15c4882dc30271dcf9341bf9 20021227 SIG
Windows debug information files Windows 4d14e8b8bb6d694af37625beabee6069 26903080 SIG
Windows help file Windows 992e94fca4ae09d31246a3d6c5f87748 6705379 SIG
Windows x86-64 MSI installer Windows for AMD64/EM64T/x64, not Itanium processors 15534a04a832fde3137d756f8d2a2833 21217280 SIG
Windows x86 MSI installer Windows ff43520e8f1fdf86dd1e2fa05299e77b 20672512 SIG