Merge pull request #1175 from openghg/increase-min-python-version-to-310

.github/workflows/workflow.yaml

@@ -23,7 +23,7 @@ jobs:
       fail-fast: false
       matrix:
         operating-system: [ubuntu-latest]
-        python-version: ["3.9", "3.10", "3.11", "3.12"]
+        python-version: ["3.10", "3.11", "3.12"]
     steps:
       - name: Checkout
         uses: actions/checkout@v3
@@ -67,7 +67,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: "3.9"
+          python-version: "3.10"
           cache: "pip"
       - name: Install openghg
         run: |
@@ -96,10 +96,10 @@ jobs:
     if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags') && !contains(github.ref_name, '-') && contains(github.ref_name, '.')
     steps:
       - uses: actions/checkout@v3
-      - name: Set up Python 3.9
+      - name: Set up Python 3.10
         uses: actions/setup-python@v4
         with:
-          python-version: "3.9"
+          python-version: "3.10"
           cache: "pip"
       - name: Install pypa/build
         run: |
@@ -146,4 +146,4 @@ jobs:
           anaconda --token "$ANACONDA_TOKEN" upload --user openghg --label main "$BUILD"
         env:
           ANACONDA_TOKEN: ${{ secrets.ANACONDA_TOKEN_EXP_2025_08_14 }}
-          GIT_TAG: ${{ github.ref_name }}
+          GIT_TAG: ${{ github.ref_name }}

CHANGELOG.md

@@ -24,6 +24,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Updated
 
+- Minimum version of python to 3.10. [PR #1175](https://github.com/openghg/openghg/pull/1175)
 - Updated ICOS standardise function to reflect changes in ASCII file format. [PR #1140](https://github.com/openghg/openghg/pull/1140)
 - Added `rename_vars` option to `get_obs_surface` to allow variable names based around species to be returned. [PR #1130](https://github.com/openghg/openghg/pull/1130)
 - Added option to `get_obs_column` to return the column data directly rather than converting to mole fractions. [PR #1131](https://github.com/openghg/openghg/pull/1131)

environment.yaml

@@ -5,7 +5,7 @@ channels:
   - defaults
   - anaconda
 dependencies:
-  - python>=3.9
+  - python>=3.10
   - addict
   - dask
   - h5netcdf

openghg/__init__.py

@@ -33,8 +33,8 @@
     "util",
 ]
 
-if _sys.version_info < (3, 9):
-    raise ImportError("openghg requires Python >= 3.9")
+if _sys.version_info < (3, 10):
+    raise ImportError("openghg requires Python >= 3.10")
 
 v = get_versions()
 

setup.cfg

@@ -26,7 +26,6 @@ classifiers =
 	Programming Language :: Cython
 	Programming Language :: Python
 	Programming Language :: Python :: 3
-	Programming Language :: Python :: 3.9
 	Programming Language :: Python :: 3.10
 	Programming Language :: Python :: 3.11
 	Programming Language :: Python :: 3.12

setup.py

@@ -28,7 +28,6 @@
     packages=setuptools.find_packages(include=["openghg", "openghg.*"]),
     package_data={"": ["data/*", "data/config/objectstore/*", "py.typed"]},
     classifiers=[
-        "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
         "Programming Language :: Python :: 3.12",
@@ -41,5 +40,5 @@
             "openghg = openghg.util:cli",
         ]
     },
-    python_requires=">=3.9",
+    python_requires=">=3.10",
 )