23 Mar
2021
23 Mar
'21
3:38 a.m.
In the "Object Lifetime" section you say "registers should be cleared upon last reference". That isn't safe, since there can be hidden dependencies on side effects of __del__, e.g.:
process_objects = create_pipeline() output_process = process_objects[-1] return output_process.wait()
If the process class terminates the process in __del__ (PyQt5's QProcess does), then implicitly deleting process_objects after the second line will break the code.
Yeah, that is old writing, so is probably less clear (no pun intended) than it should be. In frame_dealloc, Py_CLEAR is called for stack/register slots instead of just Py_XDECREF. Might not be necessary. Skip