proud n00b

Python library to handle photo uploads /resizing

For Housefed, I am looking for a python library / module to allow the user to :

1. Upload an image

2. Resize/crop it to fit 300px X 400px box

3. Save the image

Currently I am using a simple python hack that uploads the image, crops, and ultimately distorts the image. This worked initially to make sure the system works, but I need a more sophisticated system that allows the user to control the image that is saved.

Does anyone know of any python libraries that do this?