methods.py

import datetime
# # class
class Person:
#     # class attributes
#     address = 'no information'

#     # constructor (yapıcı metod)
    def __init__(self, name, year):

#         # object attributes
         self.name = name
         self.year = year

#     # instance methods
    def intro(self):
         print('Hello There. I am '+ self.name )

#     # instance methods
    def calculateAge(self):
          #bugün kodu :
          today = datetime.date.today()
          #bugün format :
          this_year = today.year
          return this_year - self.year


# # object (instance)
p1 = Person(name='dogan', year= 1993) 
# p2 = Person(name ='ahmet', year = 1992)

# p1.intro()
# p2.intro()

print(f'adım: {p1.name} ve yaşım: {p1.calculateAge()}')
# print(f'adım: {p2.name} ve yaşım: {p2.calculateAge()}')


class Circle:
    # Class object attribute
    pi = 3.14

    def __init__(self, yaricap=1):
        self.yaricap = yaricap

    # Methods
    def cevre_hesapla(self):
        return 2 * self.pi * self.yaricap

    def alan_hesapla(self):
        return self.pi * (self.yaricap**2)

c1 = Circle() 
c2 = Circle(5)

print(f'c1 : alan = {c1.alan_hesapla()} çevre = {c1.cevre_hesapla()}')
print(f'c2 : alan = {c2.alan_hesapla()} çevre = {c2.cevre_hesapla()}')