Import Error

[Joseph]

Hi,
I am using Karrigell & Sprite for webdevelopment. Sprite is placed in
the main folder of my app. I got a sub-folder called admin. I am using
the below line to import Sprite within the subfolder.

from ..sprite import Sprite

Most of the time it works. However time to time, it will throw an error
that there is no module called Sprite. I delete the .pyc file, call a
page in the main folder, then it will work.

Any help how I can resolve it? 

Thanks in advance,
Joseph