At 01:47 PM 10/13/2005 +1300, Greg Ewing wrote: >I just tried to implement an autoloader using a technique >I'm sure I used in an earlier Python version, but it no >longer seems to be allowed. > >I'm trying to change the __class__ of a newly-imported >module to a subclass of types.ModuleType, but I'm getting > > TypeError: __class__ assignment: only for heap types > >Have the rules concerning assignent to __class__ been >made more restrictive recently?
It happened in Python 2.3, actually. The best way to work around this is to add an instance of your subclass to sys.modules *first*, then call reload() on it to make the normal import process work. PEAK uses this to implement lazy loading. Actually, for your purposes, you might be able to just replace the module object and copy its contents to the new module's dictionary. _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
