Support only all active python versions

- Remove outdated python 3.6, 3.7, 3.8.
- Bring back 3.9 which had numpy issues
- Support python 3.13

.github/workflows/wheels.yaml

@@ -54,7 +54,7 @@ jobs:
           CIBW_ENVIRONMENT_WINDOWS: >
             CMAKE_GENERATOR="${{ matrix.cmake_generator }}"
             CMAKE_GENERATOR_PLATFORM="${{ matrix.cmake_generator_platform }}"
-          CIBW_SKIP: pp* *-musllinux_* cp313-* cp39-*
+          CIBW_SKIP: pp* *-musllinux_* cp36-* cp37-* cp38-*
           CIBW_ARCHS: ${{ matrix.arch }}
         run: |
             python -m cibuildwheel --output-dir wheelhouse python/

README.md

@@ -91,7 +91,7 @@ To build segyio you need:
  * A C99 compatible C compiler (tested mostly on gcc and clang)
  * A C++ compiler for the Python extension, and C++11 for the tests
  * [CMake](https://cmake.org/) version 2.8.12 or greater
- * [Python](https://www.python.org/) 3.6 or greater
+ * [Python](https://www.python.org/) 3.9 or greater
  * [numpy](http://www.numpy.org/) version 1.10 or greater
  * [setuptools](https://pypi.python.org/pypi/setuptools) version 28 or greater
  * [setuptools-scm](https://pypi.python.org/pypi/setuptools_scm)

python/setup.py

@@ -101,13 +101,11 @@ def src(x):
         'License :: OSI Approved :: GNU Lesser General Public License v3 or later (LGPLv3+)',
         'Natural Language :: English',
         'Programming Language :: Python',
-        'Programming Language :: Python :: 3.6',
-        'Programming Language :: Python :: 3.7',
-        'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: 3.9',
         'Programming Language :: Python :: 3.10',
         'Programming Language :: Python :: 3.11',
         'Programming Language :: Python :: 3.12',
+        'Programming Language :: Python :: 3.13',
         'Topic :: Scientific/Engineering',
         'Topic :: Scientific/Engineering :: Physics',
         'Topic :: Software Development :: Libraries',