Finding the most frequent character in a string

Question

I found this programming problem while looking at a job posting on SO. I thought it was pretty interesting and as a beginner Python programmer I attempted to tackle it. Howe

Answer 1

Here is way to find the most common character using a dictionary

message = "hello world"
d = {}
letters = set(message)
for l in letters:
    d[message.count(l)] = l

print d[d.keys()[-1]], d.keys()[-1]