selftest: Fix run for systems without testtools installed.

source4/scripting/python/pyglue.c

@@ -110,8 +110,6 @@ static PyObject *py_set_debug_level(PyObject *self, PyObject *args)
 	Py_RETURN_NONE;
 }
 
-
-
 /*
   return the list of interface IPs we have configured
   takes an loadparm context, returns a list of IPs in string form

source4/scripting/python/samba/__init__.py

@@ -52,6 +52,7 @@ class Ldb(_Ldb):
     not necessarily the Sam database. For Sam-specific helper
     functions see samdb.py.
     """
+
     def __init__(self, url=None, lp=None, modules_dir=None, session_info=None,
                  credentials=None, flags=0, options=None):
         """Opens a Samba Ldb file.

source4/selftest/tests.sh

@@ -104,7 +104,7 @@ planpythontestsuite() {
 	env=$2
 	module="$3"
 	shift 3
-	plantestsuite_idlist "$name" "$env" python -m subunit.run $module
+	plantestsuite_idlist "$name" "$env" PYTHONPATH=$samba4srcdir/../lib/subunit/python:$samba4srcdir/../lib/testtools $PYTHON -m subunit.run $module
 }
 
 plansmbtorturetestsuite() {