Mike's Dice Stats | Python Fiddle

import random

# Play the rolling game
def PlayGame():
    rolls = RollDiceSeveralTimes(1000)
    rollHistogram = GetHistogramFromList(rolls)
    PrintHistogram(rollHistogram)

# Roll two dice a given number of times,
# returns a list of results
def RollDiceSeveralTimes(times):
    rolls = list()
    for roll in range(times):
        rollResult=RollTwoDice()
        rolls.append(rollResult)
    return rolls

# Given a list of values, return a dictionary
# where the key if the value in of the list
# and the value is the number of times that
# key shows up in the list
def GetHistogramFromList(listOfValues):
    histogram = dict()
    for value in listOfValues:
        histogram[value]=histogram.get(value,1)+1
        # .get returns the value if the key exists, else it will return given value 1 1
    return histogram

def PrintHistogram(histogram):
    for key in histogram.keys():
        print(key,": ",histogram[key])

# Get the sum of rolling two 6 sided die
def RollTwoDice():
    return RollDie() + RollDie()

# Roll a single 6 sided die 
def RollDie():
    return random.randint(1,6)

PlayGame()

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