Thank you for your report. I cannot reproduce this error, but the stack trace seems to indicate that the problem may be internal changes to the Python threading library in Python 3.13 on Windows; self ...

I am encountering an AttributeError (type object 'Callable' has no attribute '_abc_registry') while running my Python 3.8 script：teleop_hand_and_arm.py, which uses libraries like meshcat, Pillow, and ...