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Python 3.4.0rc3

Warning: Python 3.4.0 reached end-of-life on 2019-03-18. It is no longer supported and does not receive security updates. We recommend upgrading to the latest Python release.
Note: Python 3.4.0rc3 has been superseded by Python 3.4.10.

Release date: March 10, 2014

Python 3.4.0rc3

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

Python 3.4.0 release candidate 3 was released on March 9th, 2014. This is a preview release of the next major release of Python, Python 3.4, and is not suitable for production environments.

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

Download

This is a preview release, and its use is not recommended in production settings.

Please proceed to the download page for the download.

Notes on this release:

  • The final release is scheduled for a week after this release, and it is anticipated that there will be few (if any) changes to Python 3.4.0 between this release and the final release.
  • The binaries for AMD64 will also work on processors that implement the Intel 64 architecture. (Also known as the "x64" architecture, and formerly known as both "EM64T" and "x86-64".) They will not work on Intel Itanium Processors (formerly "IA-64").
  • There is important information about IDLE, Tkinter, and Tcl/Tk on Mac OS X here.

Files

macOS

Download Mac OS X 64-bit/32-bit installer

Windows

Download Windows x86 MSI installer

Source release

Download XZ compressed source tarball

Version Operating system Description File size GPG MD5 checksum
Gzipped source tarball Source release 18.3 MB SIG 15f30d9d906eea3c5f2b1893769a20ca
XZ compressed source tarball Source release 13.4 MB SIG d356945d284d254990a6e962bbba60bb
Mac OS X 32-bit i386/PPC installer macOS for Mac OS X 10.5 and later 21.7 MB SIG 0a32943ced5042e5da117b7254a36b1e
Mac OS X 64-bit/32-bit installer macOS for Mac OS X 10.6 and later 21.8 MB SIG 8cf7b9ab15807e89a4847891af9562da
Windows help file Windows 6.9 MB SIG c5c823a4492b6f83f3b8cbedb10b589e
Windows debug information files Windows 35.0 MB SIG 3b020ee7c1c51e58119d473370af35fd
Windows debug information files for 64-bit binaries Windows 23.0 MB SIG 8bc0db6d20c2ee41b7beff5fcb46052f
Windows x86 MSI installer Windows 23.3 MB SIG 7791b30f69744ea7ff3166f6daf8f7cb
Windows x86-64 MSI installer Windows for AMD64/EM64T/x64 24.0 MB SIG 25ab911732a009d31015763a0c722520