| # http://python.org/sf/1303614 | |
| class Y(object): | |
| pass | |
| class type_with_modifiable_dict(Y, type): | |
| pass | |
| class MyClass(object): | |
| """This class has its __dict__ attribute completely exposed: | |
| user code can read, reassign and even delete it. | |
| """ | |
| __metaclass__ = type_with_modifiable_dict | |
| if __name__ == '__main__': | |
| del MyClass.__dict__ # if we set tp_dict to NULL, | |
| print MyClass # doing anything with MyClass segfaults |