update distribution data

AndreasGocht · AndreasGocht · commit ef7a7206d2dd · 2021-02-08T11:53:52.000+01:00
diff --git a/MANIFEST.in b/MANIFEST.in
@@ -1 +1 @@
-include README.md LICENSE
+src README.md LICENSE
diff --git a/pyproject.toml b/pyproject.toml
@@ -0,0 +1,5 @@
+[build-system]
+requires = [
+    "setuptools >= 40.9.0",
+]
+build-backend = "setuptools.build_meta:__legacy__"
diff --git a/setup.py b/setup.py
@@ -63,6 +63,7 @@
         'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: 3.8',
+        'Programming Language :: Python :: 3.9',
         'Programming Language :: Python :: Implementation :: CPython',
         'Operating System :: POSIX',
         'Operating System :: Unix',
