From e198fe6c71c4266022b570e5a2f242c12729273a Mon Sep 17 00:00:00 2001
From: Floris Lambrechts <florisla@gmail.com>
Date: Thu, 13 Jun 2019 22:49:18 +0200
Subject: [PATCH] Upgrade packaging dependencies (fix AppVeyor)

These used to come along with installing tox, but this is no longer
the case since version 3.10.
See similar fix https://github.com/h5py/h5py/pull/1225/commits/b183c7474f63dc776b25cd4f5dd40e00f3999777
and tox issue https://github.com/tox-dev/tox/issues/1304 .
---
 appveyor.yml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/appveyor.yml b/appveyor.yml
index 19653ef..ccb7b5e 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -29,6 +29,7 @@ init:
   - ps: "ls C:/Python*"
 
 install:
+  - "%PYTHON%/python.exe -m pip install --upgrade wheel pip setuptools virtualenv"
   - "%PYTHON%/python.exe -m pip install tox"
   - "%PYTHON%/python.exe -m pip install -e ."