Fix inappropriate code syntax that causes Python SyntaxWarning: "is not" with a literal (#246)

Author: id9502

pyrep/objects/octree.py

@@ -38,15 +38,15 @@ def insert_voxels(self, points: List[float], color: Optional[float] = None,
         if not isinstance(points, list):
             raise ValueError(
                 'Octree.insert_voxels: points parameter is not a list.')
-        if len(points) % 3 is not 0:
+        if len(points) % 3 != 0:
             raise ValueError(
                 'Octree.insert_voxels: points parameter length '
                 'not a multiple of 3.')
         if color is not None:
             if not isinstance(color, list):
                 raise ValueError(
                     'Octree.insert_voxels: color parameter not a list.')
-            elif len(color) is not 3:
+            elif len(color) != 3:
                 raise ValueError(
                     'Octree.insert_voxels: color parameter not an RGB list.')
         sim.simInsertVoxelsIntoOctree(self._handle, options, points, color,None) 
@@ -63,7 +63,7 @@ def remove_voxels(self, points : Optional[List[float]],
             if not isinstance(points, list):
                 raise ValueError(
                     'Octree.insert_voxels: points parameter is not a list.')
-            if len(points) % 3 is not 0:
+            if len(points) % 3 != 0:
                 raise ValueError(
                     'Octree.insert_voxels: points parameter length '
                     'not a multiple of 3.')
@@ -88,7 +88,7 @@ def insert_object(self, obj: Object, color: Optional[float] = None,
             if not isinstance(color, list):
                 raise ValueError(
                     'Octree.insert_object: color parameter not a list.')
-            elif len(color) is not 3:
+            elif len(color) != 3:
                 raise ValueError(
                     'Octree.insert_object: color parameter not an RGB list.')
         sim.simInsertObjectIntoOctree(self._handle, obj.get_handle(), options,
@@ -109,7 +109,7 @@ def check_point_occupancy(self, points: List[float],
         if not isinstance(points, list):
             raise ValueError(
                 'Octree.check_point_occupancy: points parameter is not a list.')
-        if len(points) % 3 is not 0:
+        if len(points) % 3 != 0:
             raise ValueError(
                 'Octree._check_point_occupancy: points parameter length '
                 'not a multiple of 3.')
@@ -120,4 +120,4 @@ def clear_voxels(self) -> None:
         """
         sim.simRemoveVoxelsFromOctree(self._handle, 0, None)
 
-object_type_to_class[ObjectType.OCTREE] = Octree
+object_type_to_class[ObjectType.OCTREE] = Octree