Add Python3.9 support to appveyor (#338)

diff --git a/appveyor_python.yml b/appveyor_python.yml
index e8eae81..38f4356 100644 (file)
--- a/appveyor_python.yml
+++ b/appveyor_python.yml
@@ -5,6 +5,7 @@ environment:
     - PYTHON: "C:\\Python36-x64"
     - PYTHON: "C:\\Python37-x64"
     - PYTHON: "C:\\Python38-x64"
+    - PYTHON: "C:\\Python39-x64"
 
 init:
   - "ECHO %PYTHON% %PYTHON_ARCH% %MSVC_VERSION%"