bsteffensmeier
commented
2 years ago PyObject will hold a reference to the Python object until it is closed, the interpreter is closed, or after the object is garbage collected. Whichever occurs first will clear the reference to the Python object. All the memory used by python cannot be freed until that reference is cleared. When it is cleared if python is not holding other references to the object then the memory will be freed. For small objects or short lived interpreters it is likely not necessary to close PyObject. For large and long running interpreters it would be a good idea to close them explicitly. If a PyObject or the Interpreter are not closed then after the PyObject is deleted by the garbage collector Jep will clear the Python reference the next time a new PyObject is created.
Daniel-Alievsky
I see that PyObject class is AutoCloseable. But it does not contain any code like finalizer or cleaner. What will occur if, due to some reasons, I will not use try-with-resources and will not call close() method? Will PyObject (its Python part) be freed by garbage collector or not?