update min python version in tests

Author: adrn

.github/workflows/cron-tests.yml

@@ -19,7 +19,7 @@ jobs:
       fail-fast: true
       matrix:
         os: [ubuntu-latest, macos-latest]  # TODO: re-enable windows-latest
-        python: ['3.8', '3.9', '3.10', '3.11']
+        python: ['3.9', '3.10', '3.11']
         include:
           # These set options for each python version. So, for example, when any
           # python 3.11 job in the matrix runs, it should use this toxenv
@@ -32,8 +32,8 @@ jobs:
           - python: 3.9
             toxenv: py39-test-cov
 
-          - python: 3.8
-            toxenv: py38-test-extradeps
+          - python: 3.11
+            toxenv: py311-test-extradeps
 
     steps:
       - name: Checkout code

.github/workflows/tests.yml

@@ -23,10 +23,10 @@ jobs:
             python: 3.x
             toxenv: codestyle
 
-          - name: Python 3.9 with minimal dependencies and coverage
+          - name: Python 3.10 with minimal dependencies and coverage
             os: ubuntu-latest
-            python: 3.9
-            toxenv: py39-test-cov
+            python: 3.10
+            toxenv: py310-test-cov
 
           - name: Python 3.9
             os: ubuntu-latest
@@ -55,10 +55,10 @@ jobs:
             python: '3.10'
             toxenv: nogsl
 
-          - name: Python 3.8 with oldest supported version of all dependencies
+          - name: Python 3.9 with oldest supported version of all dependencies
             os: ubuntu-latest
-            python: 3.8
-            toxenv: py38-test-oldestdeps
+            python: 3.9
+            toxenv: py39-test-oldestdeps
 
           # Mac and Windows:
           - name: Python 3.10 standard tests (macOS)

.readthedocs.yml

@@ -7,7 +7,7 @@ conda:
   environment: .rtd-environment.yml
 
 python:
-  version: 3.8
+  version: 3.11
   install:
     - method: pip
       path: .

environment.yml

@@ -4,7 +4,7 @@ channels:
   - defaults
 
 dependencies:
-  - python=3.8
+  - python=3.11
   - gsl
   - pip
   - pip: