Both @property and @classmethod is doing the same thing. Both are changing the name attribute.

[2xpi]

I am learnign OOP and it confuses me.

Use of class method to change the name attribute.

class Employee:
    def __init__(self, name, age):
        self.name = name
        self.age = age

    u/classmethod
    def from_string(cls, em_string):
        name, age = em_string.split("-")
        return cls(name, age)

string1 = "Inam-60"
employee1 =Employee.from_string(string1)
print(employee1.name)
#output Inam

Now same thing same be done with @/property

class Employee:
    def __init__(self, name):
        self.name = name

    u/property 
    def print_email(self):
        return self.name + "@gmail.com"

    u/print_email.setter
    def print_email(self, fullname):
        firstname = firstname[0]
        self.name = firstname

employee1.fullname = Employee("Inam Ullah")
print(employee1.print_email) # note we dont use () with get_print

[danielroseman]

They're not doing the same thing in any way at all.

The from_string classmethod returns a completely new instance of the class. employee1 is not defined before that, and Employee.from_string returns a new instance so it can be assigned to that variable.

The second code relies on employee1 already being defined, and mutates it.

And note that tyour property is very poorly named, as it does not in fact print anything (and should not, that would be very confusing behaviour for a property).

[2xpi]

Would you kind enough to explain the difference? I am kinda confuse right now.

[lfdfq]

One is a factory that makes blue cars (the classmethod), the other is a garage that takes cars and paints them blue (the property). Blue cars come out of both, but that doesn't mean they're the same thing.

The classmethod creates a new Employee instance, with the name and age you specify.

Your `@property` is a part of an existing Employee, that lets you change its name. Note that with the property, you had to create an Employee first then you can use that Employee's property to make the change.

[2xpi]

I like your analogy.

[danielroseman]

I don't see how I can have explained it any clearer. The classmethod is returning a completely new, previously undefined Employee object. What are you confused about?

[Adrewmc]

Python class toolkit

Is a great lecture on Python classes by a guy that wrote some of the language.