[update] change version

Author: NatLee

.github/workflows/test.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python: [3.7, 3.8, 3.9]
+        python: [3.8, 3.9]
 
     steps:
       - uses: actions/checkout@v2

setup.py

@@ -30,7 +30,6 @@
         'Topic :: Software Development :: Build Tools',
 
         'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: 3.9',
         'Programming Language :: Python :: 3 :: Only',

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py{37, 38, 39}
+envlist = py{38, 39}
 minversion = 3.3.0
 isolated_build = true