In 3DS Max, there’s a modifier called Spherify. Is this the same as Subsurf, in blender?
Useful if you actually explain what the spherify modifier actually does ?
Alt+Shift+S to Sphere or Cast modifier
Also in the future please use the support forums for support questions
Select the model, press tab to go into edit mode, select the vertices you want to spherify, then go to the mesh menu at the bottom, transform, to sphere.
How can this be applied in Python? Does it have to be a BMesh or is it just a modifier that can be added to the object?