I'm new to Python and am trying to understand how classes work. I've written a simple class, but I'm having trouble with initializing attributes and using them correctly. Here’s what I have so far:

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

    def introduce(self):
        print(f"Hi, my name is {self.name} and I am {self.age} years old.")

I want to understand:

• Is this the correct way to initialize attributes in a class? Are there other best practices I should know about?
• How do I create instances of this class? For example, if I want to create two people, John and Jane, how would I do that?
• How can I access and modify attributes after creating an instance? If I want to change someone's name or age, how should I do it?

I created an instance of the Person class like this:

john = Person("John", 30)

This seems to work, and I can call john.introduce() to get the output I expect. However, I'm not sure if this is the best approach to initialize and access attributes. When I try to change the age attribute directly, like this:

john.age = 31

I want to understand if:

• There's a better way to set or update attributes, like with specific methods or property decorators.
• I'm following the best practices for initializing attributes and creating instances.
• There are any recommended practices for modifying attribute values after instance creation, especially for larger projects.

I'm new to Python and am trying to understand how classes work. I've written a simple class, but I'm having trouble with initializing attributes and using them correctly. Here’s what I have so far:

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

    def introduce(self):
        print(f"Hi, my name is {self.name} and I am {self.age} years old.")

I want to understand:

• Is this the correct way to initialize attributes in a class? Are there other best practices I should know about?
• How do I create instances of this class? For example, if I want to create two people, John and Jane, how would I do that?
• How can I access and modify attributes after creating an instance? If I want to change someone's name or age, how should I do it?

I created an instance of the Person class like this:

john = Person("John", 30)

This seems to work, and I can call john.introduce() to get the output I expect. However, I'm not sure if this is the best approach to initialize and access attributes. When I try to change the age attribute directly, like this:

john.age = 31

I want to understand if:

• There's a better way to set or update attributes, like with specific methods or property decorators.
• I'm following the best practices for initializing attributes and creating instances.
• There are any recommended practices for modifying attribute values after instance creation, especially for larger projects.

• python

1 Answer 1

You're off to a good start, but there are some issues and areas for improvement in your code and understanding. The correct way of writing is:

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

    def introduce(self):
        print(f"Hi, my name is {self.name} and I am {self.age} years old.")