diff --git a/pyangbind/helpers/misc.py b/pyangbind/helpers/misc.py
index f5f41a4..c4d2619 100644
--- a/pyangbind/helpers/misc.py
+++ b/pyangbind/helpers/misc.py
@@ -16,6 +16,7 @@
 See the License for the specific language governing permissions and
 limitations under the License.
 """
+
 import sys
 
 
diff --git a/pyangbind/lib/pybindJSON.py b/pyangbind/lib/pybindJSON.py
index 24e9825..8ec9493 100644
--- a/pyangbind/lib/pybindJSON.py
+++ b/pyangbind/lib/pybindJSON.py
@@ -17,6 +17,7 @@
 See the License for the specific language governing permissions and
 limitations under the License.
 """
+
 from __future__ import unicode_literals
 
 import copy
diff --git a/pyangbind/lib/serialise.py b/pyangbind/lib/serialise.py
index 7d5b479..b129afc 100644
--- a/pyangbind/lib/serialise.py
+++ b/pyangbind/lib/serialise.py
@@ -23,6 +23,7 @@
   * module containing methods to serialise pyangbind class hierarchie
     to various data encodings. XML and/or JSON as the primary examples.
 """
+
 from __future__ import unicode_literals
 
 import json
diff --git a/pyangbind/lib/xpathhelper.py b/pyangbind/lib/xpathhelper.py
index e639310..7ca0a74 100644
--- a/pyangbind/lib/xpathhelper.py
+++ b/pyangbind/lib/xpathhelper.py
@@ -23,6 +23,7 @@
   This module maintains an XML ElementTree for the registered Python
   classes, so that XPATH can be used to lookup particular items.
 """
+
 from __future__ import unicode_literals
 
 import uuid
diff --git a/pyangbind/lib/yangtypes.py b/pyangbind/lib/yangtypes.py
index 33bd2f9..86e2e7e 100644
--- a/pyangbind/lib/yangtypes.py
+++ b/pyangbind/lib/yangtypes.py
@@ -19,6 +19,7 @@
 See the License for the specific language governing permissions and
 limitations under the License.
 """
+
 from __future__ import unicode_literals
 
 import base64
diff --git a/pyangbind/plugin/pybind.py b/pyangbind/plugin/pybind.py
index d630121..6fc1047 100644
--- a/pyangbind/plugin/pybind.py
+++ b/pyangbind/plugin/pybind.py
@@ -20,6 +20,7 @@
 See the License for the specific language governing permissions and
 limitations under the License.
 """
+
 from __future__ import unicode_literals
 
 import copy
@@ -1153,9 +1154,11 @@ def _set_%s(self, v, load=False):
                 % (
                     i["name"],
                     i["origtype"],
-                    "%s:%s" % (i["defining_module"], i["origtype"])
-                    if ":" not in i["origtype"] and not i["origtype"] in YANG_BUILTIN_TYPES
-                    else i["origtype"],
+                    (
+                        "%s:%s" % (i["defining_module"], i["origtype"])
+                        if ":" not in i["origtype"] and not i["origtype"] in YANG_BUILTIN_TYPES
+                        else i["origtype"]
+                    ),
                     c_str["type"],
                     c_str["arg"],
                 )