1- # importing the date module from the datetime package
2- from datetime import date
3- 4- # defining a function calculate the age
5- def calculate_age (birthday ):
6- 7- # using the today() to retrieve today's date and stored it in a variable
8- today = date .today ()
9- 10- # a bool representing if today's day, or month precedes the birth day, or month
11- day_check = ((today .month , today .day ) < (birthday .month , birthday .day ))
12- 13- # calculating the difference between the current year and birth year
14- year_diff = today .year - birthday .year
15- 16- # The difference in years is not enough.
17- # We must subtract 0 or 1 based on if today precedes the
18- # birthday's month/day from the year difference to get it correct.
19- # we will subtract the 'day_check' boolean from 'year_diff'.
20- # The boolean value will be converted from True to 1 and False to 0 under the hood.
21- age_in_years = year_diff - day_check
22- 23- # calculating the remaining months
24- remaining_months = abs (today .month - birthday .month )
25- 26- # calculating the remaining days
27- remaining_days = abs (today .day - birthday .day )
28- 29- # printing the age for the users
30- print ("Age:" , age_in_years , "Years" , remaining_months , "Months and" , remaining_days , "days" )
31- 32- # main function
33- if __name__ == "__main__" :
34- 35- # printing an opening statement
36- print ("Simple Age Calculator" )
37- 38- # asking user to enter birth year, birth month, and birth date
39- birthYear = int (input ("Enter the birth year: " ))
40- birthMonth = int (input ("Enter the birth month: " ))
41- birthDay = int (input ("Enter the birth day: " ))
42- 43- # converting integer values to date format using the date() method
44- dateOfBirth = date (birthYear , birthMonth , birthDay )
45- 46- # calling the function to calculate the age of a person
47- calculate_age (dateOfBirth )
1+ from datetime import date
2+ 3+ def calculate_age (birthday ):
4+ today = date .today ()
5+ 6+ # Check if the birthdate is in the future
7+ if today < birthday :
8+ return "Invalid birthdate. Please enter a valid date."
9+ 10+ day_check = ((today .month , today .day ) < (birthday .month , birthday .day ))
11+ year_diff = today .year - birthday .year - day_check
12+ remaining_months = abs (today .month - birthday .month )
13+ remaining_days = abs (today .day - birthday .day )
14+ 15+ # Return the age as a formatted string
16+ age_string = f"Age: { year_diff } { remaining_months } { remaining_days }
17+ return age_string
18+ 19+ if __name__ == "__main__" :
20+ print ("Simple Age Calculator" )
21+ 22+ try :
23+ birthYear = int (input ("Enter the birth year: " ))
24+ birthMonth = int (input ("Enter the birth month: " ))
25+ birthDay = int (input ("Enter the birth day: " ))
26+ dateOfBirth = date (birthYear , birthMonth , birthDay )
27+ age = calculate_age (dateOfBirth )
28+ print (age )
29+ except ValueError :
30+ print ("Invalid input. Please enter valid integers for the year, month, and day." )
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