fix flake8

attribute_wrapper/attribute_wrapper.py

@@ -43,8 +43,8 @@ class AttributeWrapper(attribute):
         datatype: any numpy datatype
         dims: dimensions of the attribute as a tuple, or (1,) for a scalar.
         init_value: value
-        allow_threads: if True, release Tango device lock during I/O, allowing other Tango
-                       threads to execute.
+        allow_threads: if True, release Tango device lock during I/O, allowing other
+                       Tango threads to execute.
         """
 
         # ensure the type is a numpy array.