new_contents: #!/usr/bin/python
  
  # Week 2 Problem 3. Simple statistics.
  
  # Use Python 3 print() function, Python 3 integer division
  from __future__ import print_function, division
  
  
  def get_stats(input_list):
      '''
      Accepts a list of integers, and returns a tuple of four numbers:
      minimum(int), maximum(int), mean(float), and median(float)
  
      >>> get_stats([0, 1, 2, 3, 4])
      (0, 4, 2.0, 2.0)
      >>> get_stats([0, 1, 2, 3, 4, 5])
      (0, 5, 2.5, 2.5)
      >>> get_stats([0, 1, 2, 5])
      (0, 5, 2.0, 1.5)
      >>> get_stats([0, 1, 2, 4, 5])
      (0, 5, 2.4, 2.0)
      ''' 
  
      # min() and max() are in the standard library
      # you could also write
      # minimum = sorted(input_list)[0]
      # maximum = sorted(input_list)[-1]
      minimum = min(input_list)
      maximum = max(input_list)
  
      # use the sum() function from the standard library to calculate mean
      # this is equivalent to
      # total = length = 0
      # for i in input_list: total += i
      # for i in input_list: length += 1
      # mean = total / length
      mean = sum(input_list) / len(input_list)
  
      # calculate the median
      # if the number of elements is even, we take the average of 2 middle numbers
      # if the number of elements is odd, median is the middle element
      # note that we used the Python 3 integer division // to get integer
      if len(input_list) % 2:
          median = input_list[(len(input_list) - 1) // 2 ]
      else:
          median = 0.5 * (input_list[(len(input_list) - 1) // 2] \
                          + input_list[len(input_list) // 2])
  
      # return a tuple of min, max, mean, median
      return minimum, maximum, mean, median
      
  if __name__ == '__main__':
  
      # we will test our function with a list of integers from 0 to 50
      my_list = range(0, 51)
  
      # get_stats returns a tuple of min, max, mean, median of my_list
      # print out min, max, mean, median on each line
      print("Minimum: %i\nMaximum: %i\nMean: %.1f\nMedian: %.1f" % get_stats(my_list))
subject: Add stats.py module.