tests:integration:base: fix imports, using isort

tests/integration/base.py

@@ -21,19 +21,21 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+import glob
+import grp
+import ipaddress
+import json
 import os
-import sys
+import pwd
 import re
-import time
+import shutil
 import subprocess
+import sys
 import tempfile
+import time
 import unittest
-import shutil
+
 import gi
-import glob
-import json
-import pwd
-import grp
 
 # make sure we point to libnetplan properly.
 os.environ.update({'LD_LIBRARY_PATH': '.:{}'.format(os.environ.get('LD_LIBRARY_PATH'))})