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Python 3.0.1

Release Date: Feb. 13, 2009

Python 3.0.1 was released on February 13, 2009. It was a bugfix release of Python 3.0.

This is the first bugfix release of Python 3.0. Python 3.0 is now in bugfix-only mode; no new features are being added. Dozens of bugs that were reported since the release of 3.0 final have been fixed.

Python 3.0 (a.k.a. "Python 3000" or "Py3k") is a new version of the language that is incompatible with the 2.x line of releases. The language is mostly the same, but many details, especially how built-in objects like dictionaries and strings work, have changed considerably, and a lot of deprecated features have finally been removed. Also, the standard library has been reorganized in a few prominent places.

Here are some Python 3.0 resources:

Please report bugs at

See also the license.

Python 3.0.1 Released: 13-Feb-2009


This is a production release; we currently support these formats:

MD5 checksums and sizes of the released files:

220b73f0a1a20c4b1cdf9f9db4cd52fe  11258272  Python-3.0.1.tgz
7291eac6a9a7a3642e309c78b8d744e5   9495088  Python-3.0.1.tar.bz2
be8f57265e1419330965692a4fa15d9a  13702656  python-3.0.1.amd64.msi
ffce874eb1a832927fb705b84720bfc6  13434880  python-3.0.1.msi
b17949fe1aa84c7b1b5c8932046c5b6f  16984391  python-3.0.1-macosx2009-02-14.dmg

The signatures for the source tarballs above were generated with GnuPG using release manager Barry Warsaw's public key which has a key id of EA5BBD71. The Windows installers were signed by Martin von Löwis' public key which has a key id of 7D9DC8D2.


[1]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).

Full Changelog


Version Operating System Description MD5 Sum File Size GPG
Gzipped source tarball Source release ad569034f6dec2d358afefc705e8c387 46.2 MB SIG
bzip2 compressed source tarball Source release 7291eac6a9a7a3642e309c78b8d744e5 9.1 MB SIG
Mac OS X installer macOS b17949fe1aa84c7b1b5c8932046c5b6f 16.2 MB
Windows x86 MSI installer Windows ffce874eb1a832927fb705b84720bfc6 12.8 MB SIG
Windows x86-64 MSI installer Windows for AMD64/EM64T/x64 be8f57265e1419330965692a4fa15d9a 13.1 MB SIG