From 376ec91241b5b7e34b94a62670d0a2ea6a04fa6d Mon Sep 17 00:00:00 2001
From: Daniele Varrazzo <daniele.varrazzo@gmail.com>
Date: Tue, 27 Oct 2020 12:14:48 +0100
Subject: Configure build on VS 2019 for Python 3.9 on appveyor

It appears to be needed, according to [1], although at the moment the
executable is not found yet.

[1]: https://www.appveyor.com/docs/windows-images-software/#python
---
 scripts/appveyor.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/scripts/appveyor.py b/scripts/appveyor.py
index 824ba6b..e3f5e1f 100755
--- a/scripts/appveyor.py
+++ b/scripts/appveyor.py
@@ -770,9 +770,11 @@ class Options:
     @property
     def vs_ver(self):
         # https://wiki.python.org/moin/WindowsCompilers
+        # https://www.appveyor.com/docs/windows-images-software/#python
         # Py 2.7 = VS Ver. 9.0 (VS 2008)
         # Py 3.3, 3.4 = VS Ver. 10.0 (VS 2010)
         # Py 3.5--3.8 = VS Ver. 14.0 (VS 2015)
+        # Py 3.9 = VS Ver. 16.0 (VS 2019)
         vsvers = {
             '27': '9.0',
             '33': '10.0',
@@ -781,6 +783,7 @@ class Options:
             '36': '14.0',
             '37': '14.0',
             '38': '14.0',
+            '39': '16.0',
         }
         return vsvers[self.py_ver]
 
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