This allows Sage to use the system Python on some older Linux distributions that are still in widespread use in scientific computing, including centos-8 and fedora- (although Python 3.7.x packages are also available for these). Sage 9.2 has also added support for Python 3.6. Sage 9.2 has added support for Python 3.8 in #27754 and Python 3.9 in #30184.
Support for Python 3.6, 3.8, and 3.9 added In this case, the SageMath distribution builds its own copy of Python 3. However, note that this is unrelated to the minimal requirements for a source installation of the Sage distribution: Sage 9.2 is still able to build on a system that only provides Python 2.x or Python 3.5 or older. The Sage library now makes use of Python language and library features that are only available in Python 3.6 or newer and large amounts of compatibility code have been removed. Sage 9.2 has removed support for Python 2. SageMath 9.1 continued to support Python 2. SageMath 9.0 was the first version of Sage running on Python 3 by default. Availability of Sage 9.2 and installation help.Reusable wheels for the Python packages built by the Sage distribution.For developers: Changes to the build system of sagelib.
System package information for optional packages at runtime.System package information for more distributions.Selecting a system Python to use for Sage's venv.Unicode characters allowed in tensor index notation.Internal code improvements and bug fixes.Orientability of manifolds and vector bundles.Dot and cross products of vector fields along a curve.
Connecting FiniteRankFreeModule and free modules with distinguished basis.One free module constructor to rule them all.For developers: Using Python 3.6+ features in sagelib.Support for Python 3.6, 3.8, and 3.9 added.
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