python class call method code example
Example 1: call instance class python
# define class
class example:
# define __call__ function
def __call__(self):
print("It worked!")
# create instance
g = example()
# when attempting to call instance of class it will call the __class method
g()
# prints It worked!
Example 2: class methods in python
from datetime import date
# random Person
class Person:
def __init__(self, name, age):
self.name = name
self.age = age
@classmethod
def fromBirthYear(cls, name, birthYear):
return cls(name, date.today().year - birthYear)
def display(self):
print(self.name + "'s age is: " + str(self.age))
person = Person('Adam', 19)
person.display()
person1 = Person.fromBirthYear('John', 1985)
person1.display()
Example 3: class methods in python
@classmethod
def func(cls, args...)
Example 4: @methodclass in python
class Date(object):
def __init__(self, day=0, month=0, year=0):
self.day = day
self.month = month
self.year = year
@classmethod
def from_string(cls, date_as_string):
day, month, year = map(int, date_as_string.split('-'))
date1 = cls(day, month, year)
return date1
@staticmethod
def is_date_valid(date_as_string):
day, month, year = map(int, date_as_string.split('-'))
return day <= 31 and month <= 12 and year <= 3999
date2 = Date.from_string('11-09-2012')
is_date = Date.is_date_valid('11-09-2012')
Example 5: python call function in class
#------------------------------------
#CLASS
#------------------------------------
class Student:
def __init__(self):
self.name = None
def set_name(self, word):
self.name = word
return self.get_name()
def get_name(self):
return self.name
#------------------------------------
# USAGE:
#------------------------------------
a = Student()
print(a.set_name("Hello"))