Merge pull request #12 from astrofrog/unpinned-numpy

Add unpinned Numpy for unsupported/future Python versions

.github/workflows/main.yml

@@ -16,7 +16,12 @@ jobs:
       uses: actions/setup-python@v2
       with:
         python-version: ${{ matrix.python-version }}
-    - name: Install package
-      run: python -m pip install .
+    - name: Upgrade pip and setuptools
+      run: python -m pip install pip setuptools --upgrade
+    - name: Install wheel
+      if: matrix.python-version == '3.5'
+      run: python -m pip install wheel
+    - name: Install oldest-supported-numpy
+      run: python -m pip install -v .
     - name: Check that numpy was installed
       run: python -c 'import numpy'

setup.cfg

@@ -21,8 +21,12 @@ install_requires =
     numpy==1.13.3; python_version=='3.5' and platform_system!='AIX'
     numpy==1.13.3; python_version=='3.6' and platform_system!='AIX'
     numpy==1.14.5; python_version=='3.7' and platform_system!='AIX'
-    numpy==1.17.3; python_version>='3.8' and platform_system!='AIX'
     numpy==1.16.0; python_version=='3.5' and platform_system=='AIX'
     numpy==1.16.0; python_version=='3.6' and platform_system=='AIX'
     numpy==1.16.0; python_version=='3.7' and platform_system=='AIX'
-    numpy==1.17.3; python_version>='3.8' and platform_system=='AIX'
+    numpy==1.17.3; python_version=='3.8'
+    # For Python versions which aren't yet officially supported,
+    # we specify an unpinned Numpy which allows source distributions
+    # to be used and allows wheels to be used as soon as they
+    # become available.
+    numpy; python_version>='3.9'