How to create a dictionary without using a for loop in 1 line of code?

Question

This is my code:

dictionary = {}
for i in range(2, 15):
    dictionary[str(i)] = 0

Is it possible to create it with just one line of code?

Answer 1

Use:

print(dict.fromkeys(range(2,15),0))

Or if want strings for dictionary keys:

print(dict.fromkeys(map(str,range(2,15)),0))

Or another way to make keys strings:

print(dict.fromkeys([str(i) for i in range(2,15)],0))

Answer 2

Yes:

dictionary = {str(i): 0 for i in range(2, 15)}

This is called a dictionary comprehension. There are similar syntax structures for lists, generators, and sets.