Saturday, October 20, 2018

Python 3.7.1 and 3.6.7 are now available

Python 3.7.1 and 3.6.7 are now available. Python 3.7.1 is the first maintenance release of the newest feature release of the Python language. You can find Python 3.7.1 here:

See the What’s New In Python 3.7 document for more information about the many new features and optimizations included in the 3.7 series.  Detailed information about the changes made in 3.7.1 can be found in its change log.

We are also happy to announce the availability of Python 3.6.7, the next maintenance release of Python 3.6:

Thanks to all of the many volunteers who help make Python Development and these releases possible!  Please consider supporting our efforts by volunteering yourself or through organization contributions to the Python Software Foundation.

Saturday, October 13, 2018

Python 3.7.1rc2 and 3.6.7rc2 now available for testing

Python 3.7.1rc2 and 3.6.7rc2 are now available. 3.7.1rc2 is a release preview of the first maintenance release of Python 3.7, the latest feature release of Python. 3.6.7rc2 is a release preview of the next maintenance release of Python 3.6, the previous feature release of Python. Assuming no further critical problems are found prior to 2018-10-20, no code changes are planned between these release candidates and the final releases. These release candidates are intended to give you the opportunity to test the new security and bug fixes in 3.7.1 and 3.6.7. We strongly encourage you to test your projects and report issues found to bugs.python.org as soon as possible. Please keep in mind that these are preview releases and, thus, their use is not recommended for production environments.

You can find these releases and more information here:

Wednesday, September 26, 2018

Python 3.7.1rc1 and 3.6.7rc1 now available for testing

Python 3.7.1rc1 and 3.6.7rc1 are now available. 3.7.1rc1 is the release preview of the first maintenance release of Python 3.7, the latest feature release of Python. 3.6.7rc1 is the release preview of the next maintenance release of Python 3.6, the previous feature release of Python. Assuming no critical problems are found prior to 2018-10-06, no code changes are planned between these release candidates and the final releases. These release candidates are intended to give you the opportunity to test the new security and bug fixes in 3.7.1 and 3.6.7. We strongly encourage you to test your projects and report issues found to bugs.python.org as soon as possible. Please keep in mind that these are preview releases and, thus, their use is not recommended for production environments.

You can find these releases and more information here:

Wednesday, June 27, 2018

Python 3.7.0 is now available (and so is 3.6.6)!

Python 3.7.0 is now available (and so is 3.6.6)!

On behalf of the Python development community and the Python 3.7 release team, we are pleased to announce the availability of Python 3.7.0. Python 3.7.0 is the newest feature release of the Python language, and it contains many new features and optimizations. You can find Python 3.7.0 here:

Most third-party distributors of Python should be making 3.7.0 packages available soon.

See the What’s New In Python 3.7 document for more information about features included in the 3.7 series.  Detailed information about the changes made in 3.7.0 can be found in its change log.  Maintenance releases for the 3.7 series will follow at regular intervals starting in July of 2018.

We hope you enjoy Python 3.7!

P.S. We are also happy to announce the availability of Python 3.6.6, the next maintenance release of Python 3.6:

Thanks to all of the many volunteers who help make Python Development and these releases possible!  Please consider supporting our efforts by volunteering yourself or through organization contributions to the Python Software Foundation.

Tuesday, June 12, 2018

Python 3.7.0rc1 and 3.6.6rc1 now available for testing

Python 3.7.0rc1 and 3.6.6rc1 are now available. 3.7.0rc1 is the final planned release preview of Python 3.7, the next feature release of Python. 3.6.6rc1 is the release preview of the next maintenance release of Python 3.6, the current release of Python. Assuming no critical problems are found prior to 2018-06-27, the scheduled release dates for 3.7.0 and 3.6.6, no code changes are planned between these release candidates and the final releases. These release candidates are intended to give you the opportunity to test the new features and bug fixes in 3.7.0 and 3.6.6 and to prepare your projects to support them. We strongly encourage you to test your projects and report issues found to bugs.python.org as soon as possible. Please keep in mind that these are preview releases and, thus, their use is not recommended for production environments.  Attention macOS users: there is now a new installer variant for macOS 10.9+ that includes a built-in version of Tcl/Tk 8.6. This variant will become the default version when 3.7.0 releases.  Check it out!

You can find these releases and more information here:

Thursday, May 31, 2018

Python 3.7.0b5, a bonus beta, is now available for testing

A 3.7 update: Python 3.7.0b5 is now the final beta preview of Python 3.7, the next feature release of Python.  3.7.0b4 was intended to be the final beta but, due to some unexpected compatibility issues discovered during beta testing of third-party packages, we decided to revert some changes in how Python's 3.7 Abstract Syntax Tree parser deals with docstrings; 3.7.0b5 now behaves like 3.6.x and previous releases (refer to the 3.7.0b5 changelog for more information).  If your code makes use of the ast module, you are strongly encouraged to test (or retest) that code with 3.7.0b5, especially if you previously made changes to work with earlier preview versons of 3.7.0.  As always, please report issues found to bugs.python.org as soon as possible. Please keep in mind that this is a preview release and its use is not recommended for production environments.  Attention macOS users: there is now a new installer variant for macOS 10.9+ that includes a built-in version of Tcl/Tk 8.6. This variant is expected to become the default version when 3.7.0 releases.  Check it out!

The next (and final, we hope!) preview release will be the release candidate which is now planned for 2018-06-11 followed by the official release of 3.7.0, now planned for 2018-06-27. You can find Python 3.7.0b5 and more information here: