diff --git a/core/unit_tests/streaming/test_transfer.py b/core/unit_tests/streaming/test_transfer.py
index <HASH>..<HASH> 100644
--- a/core/unit_tests/streaming/test_transfer.py
+++ b/core/unit_tests/streaming/test_transfer.py
@@ -1952,5 +1952,6 @@ def _tempdir_maker():
 
     return _tempdir_mgr
 
+
 _tempdir = _tempdir_maker()
 del _tempdir_maker
diff --git a/docs/bigquery_snippets.py b/docs/bigquery_snippets.py
index <HASH>..<HASH> 100644
--- a/docs/bigquery_snippets.py
+++ b/docs/bigquery_snippets.py
@@ -591,5 +591,6 @@ def main():
         for item in to_delete:
             item.delete()
 
+
 if __name__ == '__main__':
     main()
diff --git a/docs/pubsub_snippets.py b/docs/pubsub_snippets.py
index <HASH>..<HASH> 100644
--- a/docs/pubsub_snippets.py
+++ b/docs/pubsub_snippets.py
@@ -456,5 +456,6 @@ def main():
         for item in to_delete:
             item.delete()
 
+
 if __name__ == '__main__':
     main()
Lint fixes needed for the latest (<I>) pycodestyle.