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Python 3.1.5

Release Date: April 9, 2012

Python 3.1.5

Python 3.1.5 is a security-fix source-only release for Python 3.1.4, fixing several reported security issues: issue 13703 (oCERT-2011-003, hash collision denial of service), issue 14234 (CVE-2012-0876, hash table collisions CPU usage DoS in the expat library), issue 14001 (CVE-2012-0845, SimpleXMLRPCServer denial of service), and issue 13885 (CVE-2011-3389, disabling of the CBC IV attack countermeasure in the _ssl module). Python 3.1.5 was released on April 9, 2012.

The last binary release of Python 3.1 was 3.1.4.

With the 3.1.5 release, and five years after its first release, the Python 3.1 series is now officially retired. All official maintenance for Python 3.1, including security patches, has ended. For ongoing maintenance releases, please see the downloads page for information about the latest Python 3 series.

Help fund Python and its community by donating to the Python Software Foundation.


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

MD5 checksums and sizes of the released files:

02196d3fc7bc76bdda68aa36b0dd16ab  11798798  Python-3.1.5.tgz
dc8a7a96c12880d2e61e9f4add9d3dc7   9889191  Python-3.1.5.tar.bz2
20dd2b7f801dc97db948dd168df4dd52   8189536  Python-3.1.5.tar.xz

The signatures for the source tarballs above were generated with GnuPG using release manager Benjamin Peterson's public key which has a key id of A4135B38.

Full Changelog


Version Operating System Description MD5 Sum File Size GPG
Gzipped source tarball Source release 02196d3fc7bc76bdda68aa36b0dd16ab 11.3 MB SIG
XZ compressed source tarball Source release 20dd2b7f801dc97db948dd168df4dd52 7.8 MB SIG
bzip2 compressed source tarball Source release dc8a7a96c12880d2e61e9f4add9d3dc7 9.4 MB SIG