MNT: Drop Python 3.7 support, test through 3.11

.github/workflows/pythonpackage.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.7, 3.8, 3.9]
+        python-version: ['3.8', '3.9',  '3.10',  '3.11']
 
     steps:
     - name: Set up Python ${{ matrix.python-version }}

.github/workflows/travis.yml

@@ -11,7 +11,7 @@ jobs:
     strategy:
       max-parallel: 5
       matrix:
-        python-version: [3.7, 3.8, 3.9]
+        python-version: ['3.8', '3.9',  '3.10',  '3.11']
 
     steps:
     - name: Git settings (pacify DataLad)

setup.cfg

@@ -6,9 +6,10 @@ classifiers =
     Intended Audience :: Science/Research
     Topic :: Scientific/Engineering :: Image Recognition
     License :: OSI Approved :: BSD License
-    Programming Language :: Python :: 3.7
     Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9
+    Programming Language :: Python :: 3.10
+    Programming Language :: Python :: 3.11
 description = NiTransforms -- Neuroimaging spatial transforms in Python.
 license = MIT License
 long_description = file:README.md
@@ -20,7 +21,7 @@ project_urls =
 url = https://github.com/nipy/nitransforms
 
 [options]
-python_requires = >= 3.7
+python_requires = >= 3.8
 install_requires =
     numpy >= 1.21.0
     scipy >= 1.6.0