Python type hints: how to do a literal range

Question

I use type hints with pydantic to set return schema for my Python API.

I would like to write a literal type that allows the numbers 0 to 100. This is easy typing it out manually:

from typing import Literal
MyType = Literal[0, 1, 2, ... , 99, 100]

This is not particularly pythonic and I'm looking for a shorthand, essentially:

Literal[range(101)]

Unfortunately the above expects the literal value that is range(101). I have also tried:

Literal[list(range(101))]
Literal[0:101]

However these fail as list and slice are unhashable types.

How do I do this without typing out the numbers 0 through 100?

Answer 1

Try this:

from typing import Literal

A = Literal[1,2]
B = Literal[(1,2)]
print(A == B) # True

C = Literal[tuple(range(100))]
print(C)
# typing.Literal[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 
# 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 
# 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 
# 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 
# 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 
# 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99]