Check if a Property Exists
Certain functions may return a Usd.Property
object, but the Property may not exist due to an incorrect path or because of changes on the Stage. You can use Usd.Object.IsValid() to check if the Property is valid or exists.
Note
Remember, that Properties consist of Usd.Attribute
and Usd.Relationship
. You can perform this check on both types of objects.
from pxr import Usd
pts_attr: Usd.Attribute = mesh_prim.GetAttribute("points")
if pts_attr.IsValid():
print("Attribute exists!")
Alternatively, Usd.Object
overrides the boolean operator so you can check with a simple boolean expression.
from pxr import Usd
pts_attr: Usd.Attribute = mesh_prim.GetAttribute("points")
if pts_attr:
print("Attribute exists!")