diff --git a/pkgs/applications/virtualization/openstack/glance.nix b/pkgs/applications/virtualization/openstack/glance.nix
index 3cfe8dc527c9..f78e5da9a8c0 100644
--- a/pkgs/applications/virtualization/openstack/glance.nix
+++ b/pkgs/applications/virtualization/openstack/glance.nix
@@ -1,7 +1,6 @@
+{ stdenv, fetchurl, python2Packages, sqlite, which, strace }:
 
-{ stdenv, fetchurl, pythonPackages, sqlite, which, strace }:
-
-pythonPackages.buildPythonApplication rec {
+python2Packages.buildPythonApplication rec {
   name = "glance-${version}";
   version = "11.0.0";
   namePrefix = "";
@@ -14,7 +13,7 @@ pythonPackages.buildPythonApplication rec {
   };
 
   # https://github.com/openstack/glance/blob/stable/liberty/requirements.txt
-  propagatedBuildInputs = with pythonPackages; [
+  propagatedBuildInputs = with python2Packages; [
      pbr sqlalchemy anyjson eventlet PasteDeploy routes webob sqlalchemy_migrate
      httplib2 pycrypto iso8601 stevedore futurist keystonemiddleware paste
      jsonschema keystoneclient pyopenssl six retrying semantic-version qpid-python
@@ -26,7 +25,7 @@ pythonPackages.buildPythonApplication rec {
      MySQL_python
   ];
 
-  buildInputs = with pythonPackages; [
+  buildInputs = with python2Packages; [
     Babel coverage fixtures mox3 mock oslosphinx requests2 testrepository pep8
     testresources testscenarios testtools psutil_1 oslotest psycopg2
     sqlite which strace
diff --git a/pkgs/applications/virtualization/openstack/keystone.nix b/pkgs/applications/virtualization/openstack/keystone.nix
index bbce75b5e51e..3a5941880795 100644
--- a/pkgs/applications/virtualization/openstack/keystone.nix
+++ b/pkgs/applications/virtualization/openstack/keystone.nix
@@ -1,6 +1,6 @@
-{ stdenv, fetchurl, pythonPackages, xmlsec, which, openssl }:
+{ stdenv, fetchurl, python2Packages, xmlsec, which, openssl }:
 
-pythonPackages.buildPythonApplication rec {
+python2Packages.buildPythonApplication rec {
   name = "keystone-${version}";
   version = "8.0.0";
   namePrefix = "";
@@ -16,7 +16,7 @@ pythonPackages.buildPythonApplication rec {
   patches = [ ./remove-oslo-policy-tests.patch ];
 
   # https://github.com/openstack/keystone/blob/stable/liberty/requirements.txt
-  propagatedBuildInputs = with pythonPackages; [
+  propagatedBuildInputs = with python2Packages; [
     pbr webob eventlet greenlet PasteDeploy paste routes cryptography six
     sqlalchemy sqlalchemy_migrate stevedore passlib keystoneclient memcached
     keystonemiddleware oauthlib pysaml2 dogpile_cache jsonschema pycadf msgpack
@@ -28,7 +28,7 @@ pythonPackages.buildPythonApplication rec {
     oslo-utils
   ];
 
-  buildInputs = with pythonPackages; [
+  buildInputs = with python2Packages; [
     coverage fixtures mock subunit tempest-lib testtools testrepository
     ldap ldappool webtest requests2 oslotest pep8 pymongo which
   ];
diff --git a/pkgs/applications/virtualization/openstack/neutron.nix b/pkgs/applications/virtualization/openstack/neutron.nix
index ac839d9f9143..c1ee231d97f5 100644
--- a/pkgs/applications/virtualization/openstack/neutron.nix
+++ b/pkgs/applications/virtualization/openstack/neutron.nix
@@ -1,6 +1,6 @@
-{ stdenv, fetchurl, pythonPackages, xmlsec, which, dnsmasq }:
+{ stdenv, fetchurl, python2Packages, xmlsec, which, dnsmasq }:
 
-pythonPackages.buildPythonApplication rec {
+python2Packages.buildPythonApplication rec {
   name = "neutron-${version}";
   version = "7.0.0";
   namePrefix = "";
@@ -13,7 +13,7 @@ pythonPackages.buildPythonApplication rec {
   };
 
   # https://github.com/openstack/neutron/blob/stable/liberty/requirements.txt
-  propagatedBuildInputs = with pythonPackages; [
+  propagatedBuildInputs = with python2Packages; [
    pbr paste PasteDeploy routes debtcollector eventlet greenlet httplib2 requests2
    jinja2 keystonemiddleware netaddr retrying sqlalchemy webob alembic six
    stevedore pecan ryu networking-hyperv MySQL_python
@@ -34,7 +34,7 @@ pythonPackages.buildPythonApplication rec {
   '';
   patches = [ ./neutron-iproute-4.patch ];
 
-  buildInputs = with pythonPackages; [
+  buildInputs = with python2Packages; [
     cliff coverage fixtures mock subunit requests-mock oslosphinx testrepository
     testtools testresources testscenarios webtest oslotest os-testr tempest-lib
     ddt pep8
diff --git a/pkgs/applications/virtualization/openstack/nova.nix b/pkgs/applications/virtualization/openstack/nova.nix
index a4e0779d3f91..219026f1e0fb 100644
--- a/pkgs/applications/virtualization/openstack/nova.nix
+++ b/pkgs/applications/virtualization/openstack/nova.nix
@@ -1,6 +1,6 @@
-{ stdenv, fetchurl, pythonPackages, openssl, openssh }:
+{ stdenv, fetchurl, python2Packages, openssl, openssh }:
 
-pythonPackages.buildPythonApplication rec {
+python2Packages.buildPythonApplication rec {
   name = "nova-${version}";
   version = "12.0.0";
   namePrefix = "";
@@ -21,7 +21,7 @@ pythonPackages.buildPythonApplication rec {
   '';
 
   # https://github.com/openstack/nova/blob/stable/liberty/requirements.txt
-  propagatedBuildInputs = with pythonPackages; [
+  propagatedBuildInputs = with python2Packages; [
     pbr sqlalchemy boto decorator eventlet jinja2 lxml routes cryptography
     webob greenlet PasteDeploy paste prettytable sqlalchemy_migrate netaddr
     netifaces paramiko Babel iso8601 jsonschema keystoneclient requests2 six
@@ -37,7 +37,7 @@ pythonPackages.buildPythonApplication rec {
     cinderclient neutronclient glanceclient
   ];
 
-  buildInputs = with pythonPackages; [
+  buildInputs = with python2Packages; [
     coverage fixtures mock mox3 subunit requests-mock pillow oslosphinx
     oslotest testrepository testresources testtools tempest-lib bandit
     oslo-vmware pep8 barbicanclient ironicclient openssl openssh