Python - Dice Simulator

Question

This is my homework question:

Write a program that simulates rolling a set of six-sided dice multiple times. The program should use a dictionary to record the results and then display the results.

Input: The program should prompt for the number of dice to roll and the number of times to roll the dice.

Output:

The program is to display how many times each possible value was rolled. The format of the output must be as shown below:

The first column is the number shown on the dice when they are rolled. The brackets are only as wide as needed and the number inside the brackets is right justified. Note the minimum and maximum values in the sample runs below.

The second column is the number of times that value was rolled. This column is right justified.

The last column is the percent of times that the number was rolled. The percentages are displayed with an accuracy of one decimal place.

This is the code I have so far:

import random
from math import floor, ceil
one = 0
two = 0
three = 0
four = 0
five = 0
six = 0
rand = float(0)
rolltotal = int(input("How many times do you want to roll? "))    
q = 0    
while q < rolltotal:
    q = q + 1
    rand = ceil(6*(random.random()))
    if rand == 1:    
        one = one + 1
    elif rand == 2:
        two = two + 1
    elif rand == 3:
        three = three + 1
    elif rand == 4:
        four = four + 1
    elif rand == 5:
        five = five + 1
    else:
        six = six + 1

total = one + two + three + four + five + six

print("[1]", one, " ",round(100*one/total, 1),"%")    
print("[2]", two, " ",round(100*two/total, 1),"%")
print("[3]", three, " ",round(100*three/total, 1),"%")
print("[4]", four, " ",round(100*four/total, 1),"%")
print("[5]", five, " ",round(100*five/total, 1),"%")    
print("[6]", six, " ",round(100*six/total, 1),"%")

My question is: I just know how to roll one dice. how can i get more than one .

Answer 1

from collections import defaultdict
import random

dice = int(input("How many dice do you want to roll? "))
rolls = int(input("How many times do you want to roll them? "))

irange = xrange
sides = [1,2,3,4,5,6]

d = defaultdict(int)
for r in irange(rolls):
    d[sum( random.choice(sides) for d in irange(dice) )] += 1

total = float(rolls)
for k in sorted(d.keys()):
    print "[%d] %d %.1f%%" % (k, d[k], 100.0*d[k]/total)