pep8: Fix code format for model.

src/Model/Geometry/Reach.py

@@ -102,7 +102,7 @@ class Reach(SQLSubModel):
 
     @property
     def name(self):
-        if self._parent == None:
+        if self._parent is None:
             return ""
 
         return self._parent.name
@@ -345,12 +345,12 @@ class Reach(SQLSubModel):
         for guide in guide_set:
             self._guidelines[guide] = flatten(
                 map(
-                    lambda l: list(
+                    lambda lst: list(
                         # Filter point with name (we assume we have
                         # only one point by profile)
                         filter(
                             lambda p: p.name == guide,
-                            l
+                            lst
                         )
                     ),
                     named_points
@@ -385,7 +385,9 @@ class Reach(SQLSubModel):
             reduce(
                 lambda acc, h: acc + h,
                 map(
-                    lambda l: list(set(l).symmetric_difference(guide_set)),
+                    lambda lst: list(
+                        set(lst).symmetric_difference(guide_set)
+                    ),
                     points_name
                 ),
                 []
@@ -469,7 +471,8 @@ class Reach(SQLSubModel):
         """Import a geometry from file (.ST or .st)
 
         Args:
-            file_path_name: The absolute path of geometry file (.ST or .st) to import.
+            file_path_name: The absolute path of geometry file (.ST or .st)
+                            to import.
 
         Returns:
             Nothing.