python - to display the maximum count of numbers -

this question has answer here:

• python - count number of occurrences of each number 1 answer

for example consider file: input.txt

  12   23   45   45    45   34   34   56   12   12   12   67   89 

what need code display number repeated maximum times output should follows

  12   4   45   3   34   2   23   1   56   1   67   1   89   1 

the code wrote:

 = []  f = open("out","r")  lines = f.readlines()  in lines:     j = i.split()     a.append(j)  print len(a) 

it prints total length 13

if 1 suggest how code in python obtain result expect.it helpful??????

using collections.counter

>>> l # assume read list of numbers file. [12, 23, 45, 45, 45, 34, 34, 56, 12, 12, 12, 67, 89] >>> collections import counter >>> counter(l).most_common() [(12, 4), (45, 3), (34, 2), (67, 1), (23, 1), (56, 1), (89, 1)]