Some initial typing and misc

python/resdata/geometry/cpolyline.py

@@ -54,7 +54,7 @@ def createFromXYZFile(cls, filename, name=None):
             polyline._set_name(name)
         return polyline
 
-    def __str__(self):
+    def __str__(self) -> str:
         name = self.getName()
         str = f"{name} [" if name else "["
 
@@ -65,10 +65,10 @@ def __str__(self):
         str += "]"
         return str
 
-    def __repr__(self):
+    def __repr__(self) -> str:
         return str(self)
 
-    def __len__(self):
+    def __len__(self) -> int:
         return self._size()
 
     def __getitem__(self, index):

python/resdata/geometry/cpolyline_collection.py

@@ -41,7 +41,7 @@ def __init__(self):
     def __contains__(self, name):
         return self._has_polyline(name)
 
-    def __len__(self):
+    def __len__(self) -> int:
         return self._size()
 
     def __iter__(self):

python/resdata/geometry/geo_pointset.py

@@ -42,7 +42,7 @@ def __getitem__(self, key):
             # TODO implement slicing?
             raise ValueError(f"Index must be int, not {type(key)}.")
 
-    def __len__(self):
+    def __len__(self) -> int:
         return self._get_size()
 
     def __repr__(self):