Drop Python 3.9 Support (#599)

* remove 3.9 support and workflows * update release-notes.rst
NCAR · Apr 22, 2024 · 9150633 · 9150633
1 parent 2780913
commit 9150633
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diff --git a/.github/workflows/ci-release.yml b/.github/workflows/ci-release.yml
@@ -21,7 +21,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ "ubuntu-latest", "macos-latest", "windows-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@v4

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
@@ -26,7 +26,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ "ubuntu-latest", "macos-14", "windows-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@v4

diff --git a/build_envs/docs.yml b/build_envs/docs.yml
@@ -2,7 +2,7 @@ name: gc-docs
 channels:
     - conda-forge
 dependencies:
-    - python>=3.9,<3.13
+    - python>=3.10,<3.13
     - pre_commit
     - geocat-datafiles
     - geocat-viz

diff --git a/build_envs/environment.yml b/build_envs/environment.yml
@@ -2,7 +2,7 @@ name: geocat_comp_build
 channels:
   - conda-forge
 dependencies:
-  - python>=3.9,<3.13  # minimum support 3.9
+  - python>=3.10,<3.13  # minimum support 3.10
   - cf_xarray>=0.3.1    # min version 0.3.1 for dependencies
   - cftime
   - dask

diff --git a/docs/release-notes.rst b/docs/release-notes.rst
@@ -11,8 +11,10 @@ Upcoming release
 
 Internal Changes
 ^^^^^^^^^^^^^^^^
+* Drop Python 3.9 Support by `Cora Schneck`_ in (:pr:`599`)
 * Reduce DeprecationWarnings in testing by `Cora Schneck`_ in (:pr:`582`)
 
+
 v2024.03.0 (March 29, 2024)
 ---------------------------
 This release includes a bug fix for ``delta_pressure``.

diff --git a/setup.cfg b/setup.cfg
@@ -15,7 +15,6 @@ classifiers =
     Intended Audience :: Science/Research
     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
@@ -24,7 +23,7 @@ classifiers =
 [options]
 zip_safe = False
 include_package_data = True
-python_requires = >=3.9, <3.13
+python_requires = >=3.10, <3.13
 packages = find_namespace:
 setup_requires =
     setuptools_scm