Консервация объектов в Python

хорошо, а как добавить поддержку пиклинга в свой объект?

я в общем-то всё время об этом www.python.org/doc/2.2.3/lib/pickle-protocol.html

не обязательно, можно «запиклить» объект в файл без ошибок, но он не откроется с другого скрипта если там сохранялся объект

Note that functions (built-in and user-defined) are pickled by ``fully qualified'' name reference, not by value. This means that only the function name is pickled, along with the name of module the function is defined in. Neither the function's code, nor any of its function attributes are pickled. Thus the defining module must be importable in the unpickling environment, and the module must contain the named object, otherwise an exception will be raised3.6.

Similarly, classes are pickled by named reference, so the same restrictions in the unpickling environment apply. Note that none of the class's code or data is pickled, so in the following example the class attribute attr is not restored in the unpickling environment:

class Foo:
attr = 'a class attr'

picklestring = pickle.dumps(Foo)

These restrictions are why picklable functions and classes must be defined in the top level of a module.

Similarly, when class instances are pickled, their class's code and data are not pickled along with them. Only the instance data are pickled. This is done on purpose, so you can fix bugs in a class or add methods to the class and still load objects that were created with an earlier version of the class. If you plan to have long-lived objects that will see many versions of a class, it may be worthwhile to put a version number in the objects so that suitable conversions can be made by the class's __setstate__() method.

Нет, я не об этом. Иногда Питон выполняется быстрее C?