function to store in caller's context

[Skaperen]

i have a big block of code that sets up a couple dozen variables for later code to use. now i need to run this block 2 or 3 times. each time may or may not set individual variables. it might make sense to make the block be a function, but setting the variables doesn't happen in the caller's local name space. are there any workarounds or other ideas? this code is a project only i will use so the code doesn't need to be pythonic.