Merge pull request #11 from tepickering/update_ci

Update tests and CI to use python 3.8 and 3.9

.github/workflows/tox-tests.yml

@@ -21,8 +21,8 @@ jobs:
         # For example -- os: [ubuntu-latest, macos-latest, windows-latest]
         os: [ubuntu-latest]
 
-        # Test python 3.7, and 3.8 by default.
-        python-ver: [7, 8]
+        # Test python 3.8, and 3.9 by default.
+        python-ver: [8, 9]
 
         # Specify which tox environments to test in this list.
         tox-env: [cov, alldeps, devdeps, astropylts]

tox.ini

@@ -1,8 +1,8 @@
 [tox]
 envlist =
-    py{36,37,38}-test{,-alldeps,-devdeps}{,-cov}
-    py{36,37,38}-test-numpy{116,117,118}
-    py{36,37,38}-test-astropy{30,40,lts}
+    py{38,39}-test{,-devdeps,-datadeps}{,-cov}
+    py{38,39}-test-numpy{118,119,120,121}
+    py{38,39}-test-astropy{lts}
     build_docs
     codestyle
 requires =
@@ -33,22 +33,20 @@ description =
     devdeps: with the latest developer version of key dependencies
     oldestdeps: with the oldest supported version of key dependencies
     cov: and test coverage
-    numpy116: with numpy 1.16.*
-    numpy117: with numpy 1.17.*
     numpy118: with numpy 1.18.*
-    astropy30: with astropy 3.0.*
-    astropy40: with astropy 4.0.*
+    numpy119: with numpy 1.19.*
+    numpy120: with numpy 1.20.*
+    numpy121: with numpy 1.21.*
     astropylts: with the latest astropy LTS
 
 # The following provides some specific pinnings for key packages
 deps =
 
-    numpy116: numpy==1.16.*
-    numpy117: numpy==1.17.*
     numpy118: numpy==1.18.*
+    numpy119: numpy==1.19.*
+    numpy120: numpy==1.20.*
+    numpy121: numpy==1.21.*
 
-    astropy30: astropy==3.0.*
-    astropy40: astropy==4.0.*
     astropylts: astropy==4.0.*
 
     devdeps: git+https://github.com/numpy/numpy.git#egg=numpy