[Piglit] [PATCH] tox: stick to pytest 3.2.5

[Juan A. Suarez Romero]

Newer pytest versions (>=3.3.) require new versions of PythonSix
(>=1.10.0).

We want to keep the current PythonSix version required by piglit.

So le'ts keep using a pytest version that doesn't force us to increase
PythonSix.
---
 tox.ini | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tox.ini b/tox.ini
index c1b7a0104..12e8abd9f 100644
--- a/tox.ini
+++ b/tox.ini
@@ -20,7 +20,7 @@ deps =
     py27-accel-nix: backports.lzma
     py27-accel-nix: subprocess32
     py{35,36}: mako==1.0.2
-    pytest>=3.0.3
+    pytest==3.2.5
     pytest-mock
     pytest-pythonpath
     pytest-raises
-- 
2.14.3