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Python 3.4.1rc1

Release Date: May 5, 2014

Python 3.4.1rc1

Python 3.4 has reached end-of-life. Python 3.4.10, the final release of the 3.4 series, is available here.

Python 3.4.1 was released on May 18th, 2014.

Python 3.4.1 has over three hundred bugfixes and other improvements over 3.4.0. One notable change: the version of OpenSSL bundled with the Windows installer no longer has the "HeartBleed" vulnerability.

Major new features of the 3.4 series, compared to 3.3

Python 3.4 includes a range of improvements of the 3.x series, including hundreds of small improvements and bug fixes. Among the new major new features and changes in the 3.4 release series are

  • PEP 428, a "pathlib" module providing object-oriented filesystem paths
  • PEP 435, a standardized "enum" module
  • PEP 436, a build enhancement that will help generate introspection information for builtins
  • PEP 442, improved semantics for object finalization
  • PEP 443, adding single-dispatch generic functions to the standard library
  • PEP 445, a new C API for implementing custom memory allocators
  • PEP 446, changing file descriptors to not be inherited by default in subprocesses
  • PEP 450, a new "statistics" module
  • PEP 451, standardizing module metadata for Python's module import system
  • PEP 453, a bundled installer for the pip package manager
  • PEP 454, a new "tracemalloc" module for tracing Python memory allocations
  • PEP 456, a new hash algorithm for Python strings and binary data
  • PEP 3154, a new and improved protocol for pickled objects
  • PEP 3156, a new "asyncio" module, a new framework for asynchronous I/O


Please proceed to the download page for the download.

Notes on this release:


Version Operating System Description MD5 Sum File Size GPG
Gzipped source tarball Source release 618f398f53260dd50303795bbe432906 19261231 SIG
XZ compressed source tarball Source release fba41e2d0b26b9042791eff642428b14 14105008 SIG
Mac OS X 32-bit i386/PPC installer macOS for Mac OS X 10.5 and later 0d2449cdb0e6d29c86c9b31717964fb2 22831000 SIG
Mac OS X 64-bit/32-bit installer macOS for Mac OS X 10.6 and later 297bae844e63c62a8d7926517eb6adf4 22899257 SIG
Windows debug information files Windows 0f87f551df1653afe4119ba75e30fbb0 36744364 SIG
Windows debug information files for 64-bit binaries Windows 525f88136ad791f665ef64298b9c8ed0 24121026 SIG
Windows help file Windows aa70bee4837e4f9d583b8abb85a7b784 7295965 SIG
Windows x86-64 MSI installer Windows for AMD64/EM64T/x64 d4d7f15976992cc69fcfb4c7d2cf6560 25255936 SIG
Windows x86 MSI installer Windows fff0fe9cf48cbd6ef439665991650ed0 24551424 SIG