MNT: Add python_requires to 3.9+

Fix: #461

.github/workflows/ci.yml

@@ -68,7 +68,7 @@ jobs:
       - name: Build wheels
         uses: pypa/[email protected]
         env:
-          CIBW_SKIP: pp* cp36-* cp37-* cp38-*
+          CIBW_SKIP: pp*
 
       - name: Store wheel artifacts
         uses: actions/upload-artifact@v4

RELEASE.rst

@@ -6,12 +6,21 @@ Release Notes
 These are the major changes made in each release. For details of the changes
 see the commit log at https://github.com/pydata/bottleneck
 
+Bottleneck 1.4.2
+================
+
+*Release date: 2024-10-18
+
+Maintenance
+~~~~~~~~~~~
+- Add `python_requires` to `setup.py` to limit build to 3.9+
+
 Bottleneck 1.4.1
 ================
 
 *Release date: 2024-10-12
 
-Enhancements
+Maintenance
 ~~~~~~~~~~~~
 - Deprecate Python 3.7 and 3.8 
 - Add python 3.13 build
@@ -21,7 +30,7 @@ Bottleneck 1.4.0
 
 *Release date: 2024-06-17
 
-Enhancements
+Maintenance
 ~~~~~~~~~~~~
 - Building against numpy 2.0, which ships new backwards compatible ABI
 - Update CI config
@@ -31,7 +40,7 @@ Bottleneck 1.3.8
 
 *Release date: 2024-02-04*
 
-Enhancements
+Maintenance
 ~~~~~~~~~~~~
 - Python 3.12 wheel available
 - Update CI config
@@ -41,7 +50,7 @@ Bottleneck 1.3.7
 
 *Release date: 2023-01-20*
 
-Enhancements
+Maintenance
 ~~~~~~~~~~~~
 - Python 3.11 wheel available
 
@@ -55,7 +64,7 @@ Bug Fixes
 ~~~~~~~~~
 - Fix ValueError: cannot convert float NaN to integer with new numpy version
 
-Enhancements
+Maintenance
 ~~~~~~~~~~~~
 - Python 3.11 available in CI tests
 

setup.py

@@ -192,6 +192,7 @@ def get_long_description():
         "bottleneck": ["LICENSE"],
         "bottleneck.tests": ["data/*/*"],
     },
+    python_requires=">=3.9",
     install_requires=["numpy"],
     extras_require={"doc": ["numpydoc", "sphinx", "gitpython"]},
     cmdclass=cmdclass,