Deprecate Python 3.10

.github/workflows/build.yml

@@ -39,7 +39,7 @@ jobs:
     strategy:
       matrix:
         os: [windows-2019, ubuntu-20.04, macos-10.15]
-        python-version: ["3.6", "3.7", "3.8", "3.9", "3.10"]
+        python-version: ["3.6", "3.7", "3.8", "3.9"]
 
     steps:
       - uses: actions/checkout@v1

setup.py

@@ -25,7 +25,6 @@ setup(
          "Programming Language :: Python :: 3.7",
          "Programming Language :: Python :: 3.8",
          "Programming Language :: Python :: 3.9",
-         "Programming Language :: Python :: 3.10",
          "License :: OSI Approved :: MIT License",
          "Operating System :: OS Independent",
      ],