Code for How to Make an Age Calculator in Python Tutorial

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age_calculator_cli.py

from datetime import date def calculate_age(day, month, year): # we are getting the current date using the today() today = date.today() # convering year, month and day into birthdate birthdate = date(year, month, day) # calculating the age age = today.year - birthdate.year - ((today.month, today.day) < (birthdate.month, birthdate.day)) # return the age value return age # the try/except block # the try will execute if there are no exceptions try: # we are getting day, month and year using input() function day = input('Enter day:') month = input('Enter month:') year = input('Enter year:') # creating a variable called calculated_age and we are also calling the claculate_age function age_result = calculate_age(int(day), int(month), int(year)) print(f'You are {age_result} years old') # the except will catch all errors except: print(f'Failed to calculate age, either day or month or year is invalid')

age_calculator_ui.py

from tkinter import * from tkinter import ttk from datetime import date from tkinter.messagebox import showerror # the function for calculating the age def calculate_age(): # the try/except block try: # getting current date today = date.today() # getting day from the day entry day = int(day_entry.get()) # getting month from the month entry month = int(month_entry.get()) # getting year from the year entry year = int(year_entry.get()) # creating a date object birthdate = date(year, month, day) # calculating the age age = today.year - birthdate.year - ((today.month, today.day) < (birthdate.month, birthdate.day)) # displaying the age using the age result label age_result.config(text='You are ' + str(age) + ' years old') # if an error occurs the showerror window will pop up except: showerror(title='Error', message='An error occurred while trying to ' \ 'calculate age\nThe following could ' \ 'be the causes:\n->Invalid input data\n->An empty field/fields\n'\ 'Make sure you enter valid data and fill all the fields') # creating the main window window = Tk() # the title for the window window.title('Age Calculator') # the dimensions and position of the windodw window.geometry('500x260+430+300') # making the window nonresizabale window.resizable(height=FALSE, width=FALSE) # the canvas to contain all the widgets canvas = Canvas(window, width=500, height=400) canvas.pack() # ttk styles for the labels label_style = ttk.Style() label_style.configure('TLabel', foreground='#000000', font=('OCR A Extended', 14)) # ttk styles for the button button_style = ttk.Style() button_style.configure('TButton', foreground='#000000', font=('DotumChe', 16)) # ttk styles for the entries entry_style = ttk.Style() entry_style.configure('TEntry', font=('Dotum', 15)) # the label for displaying the big text big_label = Label(window, text='AGE CALCULATOR', font=('OCR A Extended', 25)) # placing the big label inside the canvas canvas.create_window(245, 40, window=big_label) # label and entry for the day day_label = ttk.Label(window, text='Day:', style='TLabel') day_entry = ttk.Entry(window, width=15, style='TEntry') # label and entry for the month month_label = ttk.Label(window, text='Month:', style='TLabel') month_entry = ttk.Entry(window, width=15, style='TEntry') # label and entry for the year year_label = ttk.Label(window, text='Year:', style='TLabel') year_entry = ttk.Entry(window, width=15, style='TEntry') # the button calculate_button = ttk.Button(window, text='Calculate Age', style='TButton', command=calculate_age) # label for display the calculated age age_result = ttk.Label(window, text='', style='TLabel') # adding the day label and entry inside the canvas canvas.create_window(114, 100, window=day_label) canvas.create_window(130, 130, window=day_entry) # adding the month label and entry inside the canvas canvas.create_window(250, 100, window=month_label) canvas.create_window(245, 130, window=month_entry) # adding the year label and entry inside the canvas canvas.create_window(350, 100, window=year_label) canvas.create_window(360, 130, window=year_entry) # adding the age_result and entry inside the canvas canvas.create_window(245, 180, window=age_result) # adding the calculate button inside the canvas canvas.create_window(245, 220, window=calculate_button) # runs the window infinitely until uses closes it window.mainloop()