What exception to raise for python function arguments -


i'm creating function right takes in 2 lists. want these 2 lists of equal size. i'm trying figure out kind of exception should throw (or if should throw exception @ all) if aren't same size. kind of want valueerror check doesn't pertain single value.

for clarities sake, here's function stub. 

def create_form(field_types, field_discriptions):     pass

i use assert , raise assertionerror:

assert len(field_types) == len(field_descriptions), "helpful message"

otherwise, valueerror message seems best choice.


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