At the rs.MeshMeshIntersection help file, there stands, that this function returns “None” when not successful (I guess this means too: when two meshes do not intersect?), or on error.

But when I took a look at the mesh.py file, looks like when two meshes do not intersect, this function returns an empty list, not None:

```
def MeshMeshIntersection(mesh1, mesh2, tolerance=None):
"""Calculates the intersections of a mesh object with another mesh object
Parameters:
mesh1, mesh2 = identifiers of meshes
tolerance[opt] = the intersection tolerance
Returns:
List of 3d point arrays that define the vertices of the intersection curves
"""
mesh1 = rhutil.coercemesh(mesh1, True)
mesh2 = rhutil.coercemesh(mesh2, True)
if tolerance is None: tolerance = Rhino.RhinoMath.ZeroTolerance
polylines = Rhino.Geometry.Intersect.Intersection.MeshMeshAccurate(mesh1, mesh2, tolerance)
if polylines: return list(polylines)
return [] # this line
```

Or did I get it all wrong?