From 1f137150f8d4e01386c8c8ffacdcf5e556cea427 Mon Sep 17 00:00:00 2001
From: Kubilay Kocak <koobs@users.noreply.github.com>
Date: Sun, 21 Jun 2015 14:52:38 +1000
Subject: [PATCH] Fix test command invocation causing ERROR

Currently, running the test suite via the test command (pythonX.Y setup.py test) produces the following error:

```
ERROR: file not found: test
```

This change tweaks initialize_options to match the code described upstream [1].

[1] https://pytest.org/latest/goodpractises.html
---
 setup.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/setup.py b/setup.py
index ce35314fb..954109501 100644
--- a/setup.py
+++ b/setup.py
@@ -15,7 +15,7 @@ class PyTest(TestCommand):
 
         def initialize_options(self):
             TestCommand.initialize_options(self)
-            self.pytest_args = None
+            self.pytest_args = []
 
         def finalize_options(self):
             TestCommand.finalize_options(self)