Finding mean of a values in a dictionary without using .values() etc

Question

I have a dictionary that looks like:

G={\'E\': 18.0, \'D\': 17.0, \'C\': 19.0, \'B\': 15.0, \'A\': 0}

I have to find the mean of the values

Answer 1

You want:

mean = sum([G[key] for key in G])/float(len(G))

Your original code will also produce a:

TypeError: 'int' object is not iterable

when you try to sum the values.