SyntaxError: “can't assign to function call”

Question

This line in my program:

invest(initial_amount,top_company(5,year,year+1)) = subsequent_amount

causes me to get this error:

Answer 1

You are assigning to a function call:

invest(initial_amount,top_company(5,year,year+1)) = subsequent_amount

which is illegal in Python. The question is, what do you want to do? What does invest() do? I suppose it returns a value, namely what you're trying to use as subsequent_amount, right?

If so, then something like this should work:

amount = invest(amount,top_company(5,year,year+1),year)