ampm.py

from typing import Literal

AMPM = Literal["AM", "PM"]


 def ampmify(hour: int, ampm: AMPM) -> int:
     if hour == 12:
         if ampm == "AM":
             return 0
         else:
             return 12
     elif ampm == "PM":
         return hour + 12
     else:
         return hour


 def addampm(hour: int) -> tuple[int, AMPM]:
     if hour == 0:
         return (12, "AM")
     elif hour == 12:
         return (12, "PM")
     elif hour > 12:
         return (hour - 12, "PM")
     else:
         return (hour, "AM")