Python Widget to read in user input box in blog

[ecpbm765 at gmail.com]

Hey,

I am helping to develop a project that displays images based on user
input.  One possible way of implementing this is via a widget that
when it is run, would read in the users input from an input text field
(probably from a blog), and replace it with the HTML that would
display those images.  This is more a proof of concept, so really all
I am wondering is if there is a good way in Python to read in the text
the user has typed and change it before the user hits submit?

Thanks