Laszlo Nagy schrieb: > For sensitive resources, instead of writing __del__ methods, you should > create a "close()" method. Python does this with file objects, DB API > 2.0 with database connection objects etc. Then you can do > > res = create_resource() > try: > use_resource() > finally: > res.close() # Must free resource, but the object can still be alive...
You can replace the try/finally code with a "with resource: do_something()" block if the object supporst the context manager protocol. If you want to run some code during the shutdown phase of the Python process you can register a callback function in the "atexit" module. > It is more common to use signals when you have more threads or child > processes. You can use something like: Do NOT mix threads and signals. It's usually a very bad idea and may lead to surprising side effects. Signals are only handled by the main thread. Christian -- http://mail.python.org/mailman/listinfo/python-list
