python_age_calculator's Introduction

Python Age calculator

Python is a popular high-level programming language that is known for its simplicity, readability, and versatility.
Python comes with a standard library of modules, which includes a wide range of functionality including date and time functions.

We'll create a program that will prompt a user for their birthday and calculate how many days old they are.

First we need to import the datetime module into the program. By importing the module, the classes and functions are available for use in the current program.

The datetime module supplies classes for working with dates and times. It includes the datetime class, which represents a date and time object.

Here is the complete program:

from datetime import datetime

while True:
    month = input("What month were you born? (Use 1-12 for the month) ")
    if month.isdigit() and 1 <= int(month) <= 12:
        month = int(month)
        break
    else:
        print("Invalid month entered. Enter a number between 1 and 12.")

while True:
  day = (input("What day were you born? "))
  if day.isdigit() and int(day) in range(1,32):
    day = int(day)
    break
  else:
    print("Invalid day entered. Enter a number between 1 and 31")

while True:
  year = input("What year were you born? ")
  today_year = datetime.today().year
  if year.isdigit() and int(year) in range(1, datetime.now().year + 1):
    year = int(year)
    break
  else:
   print(f"Invalid year. Enter a year between 1 AD and {today_year}.")


birthday = datetime(year, month, day)
new_date = datetime.today() - birthday
days_old = new_date.days

if days_old < 0:
  print("You entered a birthday that hasn't happened yet!")
elif days_old == 0:
  print("You were born today! Happy Birthday!") 
else:
  print(f"You are {days_old:,} days old!")

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