[summerofcode] Problem in import

[Ian Bicking]

John Xiaogang Zhang wrote:
>     import tilefilesys.tilefile.TFHandlers as TFHandlers
> AttributeError: 'module' object has no attribute 'TFHandlers'
> 
> However, if I change the last file to
> 
>     import tilefilesys.tilefile.TFHandlers as TFHandlers
> 
> that is, without the "as TFHandlers", then the errors gone (but I cannot 
> refer it as the shorter reference).
> 
> Could please anyone tell me why it happens, and how to get rid off it?

Looks like a circular import; probably you import tilefile from 
somewhere, and tilefile imports this file, and this file then tries to 
import tilefile.  During that third import (the one with the error) the 
tilefile module has not been fully loaded, so the TFHandlers object has 
not yet been created.

You'll have to refactor your modules to avoid circular imports.

-- 
Ian Bicking  /  ianb at colorstudy.com  /  http://blog.ianbicking.org