Note: It is recommended that you use the latest bug fix release of the 3.1 series, 3.1.4.
Python 3.1.2 was released on March 21st, 2010.
The Python 3.1 version series is a continuation of the work started by Python 3.0, the new backwards-incompatible series of Python. Improvements in this release include:
- An ordered dictionary type
- Various optimizations to the int type
- New unittest features including test skipping and new assert methods.
- A much faster io module
- Tile support for Tkinter
- A pure Python reference implementation of the import statement
- New syntax for nested with statements
See these resources for further information:
- What's New in 3.1?
- What's new in Python 3000
- Python 3.1.2 Change Log
- Online Documentation
- Conversion tool for Python 2.x code: 2to3
- Report bugs at http://bugs.python.org.
Help fund Python and its community by donating to the Python Software Foundation.
This is a production release. Please report any bugs you may encounter to http://bugs.python.org.
We currently support these formats for download:
- Gzipped source tar ball (3.1.2) (sig)
- Bzipped source tar ball (3.1.2) (sig)
- Windows x86 MSI Installer (3.1.2) (sig)
- Windows X86-64 MSI Installer (3.1.2)  (sig)
- Mac Installer disk image (3.1.2) (sig)
The source tarballs are signed with Benjamin Peterson's key (fingerprint: 12EF 3DC3 8047 DA38 2D18 A5B9 99CD EA9D A413 5B38). The Windows installers are signed with Martin von Löwis' public key which has a key id of 7D9DC8D2. The Mac disk image was signed by Ronald Oussoren's public key which has a key id of E6DF025C. The public keys are located on the download page.
MD5 checksums and sizes of the released files:
08d01c468989d1f2cc560c23f8e6a7ea 11661773 Python-3.1.2.tgz 45350b51b58a46b029fb06c61257e350 9719769 Python-3.1.2.tar.bz2 a50d1fe2648783126c7a70654a08b755 14369280 python-3.1.2.amd64.msi 098269f6057916821e41e82e7a7be227 14098432 python-3.1.2.msi 597ba520c9c989f23464e0bf534db389 17418524 python-3.1.2-macosx10.3-2010-03-24.dmg
|||The binaries for AMD64 will also work on processors that implement the Intel 64 architecture (formerly EM64T), i.e. the architecture that Microsoft calls x64, and AMD called x86-64 before calling it AMD64. They will not work on Intel Itanium Processors (formerly IA-64).|