Instead of def sum_double(a, b): # Store the sum in a local variable sum = a + b # Double it if a and b are the same if a =

Instead of def sum_double(a, b): # Store the sum in a local variable sum = a + b # Double it if a and b are the same if a == b: sum = sum * 2 return sum I wrote: def sum_double(a, b): return (a+b)*2 if a==b else a+b My solution was accepted. Apparently the site evaluates the python program. This is much better than some online C++ test I once took, where my entry had to match perfectly a pre-canned solution letter by letter (it would even balk on differences in whitespace).