UPDATE:Sorting a list from a for output from highest to lowest in python

    for x in letters:
         frequency[x]+=1
    for x in frequency:
        print x,frequency[x],frequency[x]/float(n)    

Sorry but I'm fairly new to programming and everything and I'm trying to get the output to be sorted from highest value of frequency[x]/float(n) to lowest value. Is there any method of being 开发者_开发百科able to sort it just through the printing command?

Thanks very much!

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For the keys:

sorted(frequency, key=lambda x: frequency[x], reverse=True)

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Do

for x in sorted(frequency, key=lambda y: frequency[y]/float(n), reverse=True):
    print x,frequency[x],frequency[x]/float(n)

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This should do the trick:

freqs = sorted([frequency[x]/float(n) for x in frequency], reverse=True)

If you want it more like the print statement you have above, try this:

for (fxn, fx, x) in sorted([(frequency[x]/float(n), frequency[x], x) for x in frequency], reverse=True):
    print x, fx, fxn

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Answers flashing right before my eyes! Yes, use sorted. Read more here.