crete python dictionary by loop code example

Example 1: python generate dictionary in loop

n = int(input())
ans = {i : i*i for i in range(1,n+1)}
print(ans)

Example 2: how to iterate over dictionary in python

>>> for key, value in a_dict.items():
...     print(key, '->', value)
...
color -> blue
fruit -> apple
pet -> dog