Import Error

[Joseph]

Hi,
I am using Karrigell & Sprite for web development. 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 from 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? 

Thank you in advance,
Joseph