class error

[Ethan Furman]

monkeys paw wrote:
> I have the following file:
> 
> FileInfo.py:
> 
> import UserDict
> 
> class FileInfo(UserDict):
>     "store file metadata"
>     def __init__(self, filename=None):
>         UserDict.__init__(self)
>         self["name"] = filename
> 
> 
> 
> When i import it like so:
> 
> import FileInfo
> 
> 
> i get this error:
> 
> Traceback (most recent call last):
>   File "<interactive input>", line 1, in <module>
>   File "FileInfo.py", line 3, in <module>
>     class FileInfo(UserDict):
> TypeError: Error when calling the metaclass bases
>     module.__init__() takes at most 2 arguments (3 given)
> 
> What is causing the error?

UserDict is a module -- you want to subclass the UserDict class inside 
the module...

class FileInfo(UserDict.UserDict):
     "etc etc"

~Ethan~