Added PyPy env to tox.ini

Also fixes tests that were broken on PyPy.

Co-Authored-By: Jim Rollenhagen <jim@jimrollenhagen.com>
Change-Id: I2554aa844b040c4c74cbf287dccb06d816a39dbe

ironic_python_agent/hardware.py

@@ -128,7 +128,7 @@ class GenericHardwareManager(HardwareManager):
     def _list_block_devices(self):
         report = self._cmd(['blockdev', '--report'])[0]
         lines = report.split('\n')
-        lines = [line.split() for line in lines if line is not '']
+        lines = [line.split() for line in lines if line != '']
         startsec_idx = lines[0].index('StartSec')
         device_idx = lines[0].index('Device')
         size_idx = lines[0].index('Size')

tox.ini

@@ -1,7 +1,7 @@
 [tox]
 minversion = 1.6
 skipsdist = True
-envlist = py26,py27,pep8
+envlist = py26,py27,pypy,pep8
 
 [testenv]
 usedevelop = True