diff --git a/test-requirements.txt b/test-requirements.txt
index 282a4dda2b96..9c67b37cb19d 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -3,6 +3,7 @@ coverage>=3.6
 discover
 feedparser
 fixtures>=0.3.14
+libvirt-python>=1.2.5
 mock>=1.0
 mox>=0.5.3
 MySQL-python
diff --git a/tox.ini b/tox.ini
index be09f75ba917..27363a75b622 100644
--- a/tox.ini
+++ b/tox.ini
@@ -4,7 +4,6 @@ envlist = py26,py27,py33,pep8
 skipsdist = True
 
 [testenv]
-sitepackages = True
 usedevelop = True
 install_command = pip install -U --force-reinstall {opts} {packages}
 # Note the hash seed is set to 0 until nova can be tested with a
@@ -17,16 +16,13 @@ commands =
   python -m nova.openstack.common.lockutils python setup.py test --slowest --testr-args='{posargs}'
 
 [tox:jenkins]
-sitepackages = True
 downloadcache = ~/cache/pip
 
 [testenv:pep8]
-sitepackages = False
 commands =
   flake8 {posargs}
 
 [testenv:genconfig]
-sitepackages = False
 commands =
   bash tools/config/generate_sample.sh -b . -p nova -o etc/nova
 
@@ -49,9 +45,6 @@ commands = {posargs}
 [testenv:docs]
 commands = python setup.py build_sphinx
 
-[testenv:py27local]
-sitepackages = False
-
 [flake8]
 # H803 skipped on purpose per list discussion.
 # E125 is deliberately excluded. See https://github.com/jcrocholl/pep8/issues/126