Using Dictionary to Test Evenness of Distribution Generated by Randint Function

[snippsat]

I'm trying to learn Python and am currently about halfway through an introductory book in

Also as new user you should not use Python 2.7,which as of Jan 2020 is officially dead💀
Code will give errors on print and has_key(removed) in Python 3.
So if fix indentation and write code so it work for Python 3.9 it look like this.

from random import randint

frequency = {}
for i in range(1000):
     num = randint(1, 10)
     if num in frequency:
          frequency[num] = frequency[num] + 1
     else:
        frequency[num] = 1

print(frequency)

Also a alternative is to use collections defaultdict as it's made for these kind of task.

import collections
from random import randint

frequency = collections.defaultdict(int)
for i in range(1000):
    frequency[randint(1, 10)] += 1

print(frequency)

Output:
defaultdict(<class 'int'>, {7: 99, 3: 98, 2: 98, 1: 105, 8: 92, 9: 103, 5: 111, 10: 101, 4: 106, 6: 87})

Can throw in Counter,to get most common.

>>> from collections import Counter
>>> 
>>> d = Counter(frequency)
>>> d.most_common(3)
[(5, 111), (4, 106), (1, 105)]
>>> d.most_common(1)
[(5, 111)]