[TEST] Add missing 'six' python package in 'pytest' tox env

Change-Id: I524e2141461c7f7fbdd11569799d251d7b308fa1
Issue-ID: INT-1810
Signed-off-by: Bartek Grzybowski <b.grzybowski@partner.samsung.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/tox.ini b/tox.ini
index 3ba56ca..453ccc4 100644
--- a/tox.ini
+++ b/tox.ini
@@ -49,6 +49,7 @@ deps =
     pytest
     pyyaml
     docker
+    six
 commands = pytest -v
 
 [testenv:MassPnfSim-runtime]