Drop support for python 3.9

Python 3.9 is EOL.

Author: achaikou

.github/workflows/wheels.yaml

@@ -53,7 +53,7 @@ jobs:
           CIBW_ENVIRONMENT_WINDOWS: >
             CMAKE_GENERATOR="${{ matrix.cmake_generator }}"
             CMAKE_GENERATOR_PLATFORM="${{ matrix.cmake_generator_platform }}"
-          CIBW_SKIP: cp38-* *-musllinux_*
+          CIBW_SKIP: cp38-* cp39-* *-musllinux_*
           CIBW_ARCHS: ${{ matrix.arch }}
         run: |
             python -m cibuildwheel --output-dir wheelhouse python/

README.md

@@ -96,7 +96,7 @@ To build segyio you need:
  * A C99 compatible C compiler (tested mostly on gcc and clang)
  * A C++11 compiler for the Python extension and tests
  * [CMake](https://cmake.org/) version 3.18 or greater
- * [Python](https://www.python.org/) 3.9 or greater
+ * [Python](https://www.python.org/) 3.10 or greater
  * [numpy](http://www.numpy.org/) version 1.10 or greater
  * [pytest](https://pypi.org/project/pytest)
 

python/pyproject.toml

@@ -13,7 +13,7 @@ authors = [
 ]
 urls.homepage = "https://github.com/equinor/segyio"
 license = "LGPL-3.0-or-later"
-requires-python = ">=3.9"
+requires-python = ">=3.10"
 dependencies = ["numpy >= 1.10"]
 readme = { text = """
 =======
@@ -66,7 +66,6 @@ classifiers = [
     "Intended Audience :: Science/Research",
     "Natural Language :: English",
     "Programming Language :: Python",
-    "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",