How to pass variable dates to a ORM query

[Gerald Brown]

I have a Django/Python function that creates a Reportab PDF file based on the current date.  Works GOOD. Now I want to pass any date to that function and have it create a PDF based on the new date.

I tried creating  another function that generates the date (yesterday) but I am not able to pass the generated date to the first function.

Any ideas on how to do this???

Thanks

[Derek]

You'll probably need to post some code snippets; what do these functions' signatures look like and how do they get called?