Fix flake8 error

Kevin D Smith · Kevin D Smith · commit c1826315cc8e · 2020-09-28T15:49:40.000-04:00
diff --git a/doc/source/conf.py b/doc/source/conf.py
@@ -82,7 +82,7 @@
 # built documents.
 #
 
-import swat  # noqa: W291
+import swat  # noqa: W291,E402
 
 # The short X.Y version.
 version = swat.__version__
