- add sle15_python_module_pythons (jsc#PED-68)

- Update to 3.0.0~b2
# Features added
* C++ declarations for , and std::any were
added. Patches by Jonathan Helgert and Maximilien Colange.
(Github issues #5262, #5309, #5314)
# Bugs fixed
* Unintended internal exception handling lead to a visible
performance regression for nogil memoryview code in 3.0.0b1.
(Github issue #5324)
* None default arguments for arguments with fused memoryview
types could select a different implementation in 3.0 than in
0.29.x. The selection behaviour is generally considered
suboptimal but was at least reverted to the old behaviour for
now. (Github issue #5297)
* The new complex vs. floating point behaviour of the ** power
operator accidentally added a dependency on the GIL, which was
really only required on failures. (Github issue #5287)
* from cython cimport … as … could lead to imported names not
being found in annotations. Patch by Chia-Hsiang Cheng. (Github
issue #5235)
* Generated NumPy ufuncs could crash for large arrays due to
incorrect GIL handling. (Github issue #5328)
* Very long Python integer constants could exceed the maximum C
name length of MSVC. Patch by 0dminnimda. (Github issue #5290)
* cimport_from_pyx could miss some declarations. Patch by
Chia-Hsiang Cheng. (Github issue #5318)
* Fully qualified C++ names prefixed by a cimported module name
could fail to compile. Patch by Chia-Hsiang Cheng. (Github