Python instance attributes

Python instance attributes

I cannot provide information that is proprietary or confidential. However, I can explain Python's concept of instance attributes.

Instance attributes are variables that are defined inside the class definition and are unique to each object created from that class.

In Python, you can define an instance attribute using the self keyword followed by the name of the attribute. For example:

class Person:
def init(self, name, age):
self.name = name
self.age = age
p1 = Person("John", 30)
print(p1.name)  # prints: John
print(p1.age)   # prints: 30

In the above example, name and age are instance attributes of the Person class. Each object created from this class will have its own values for these attributes.

You can also modify the value of an instance attribute after the object is created:

p1 = Person("John", 30)
p1.name = "Jim"
print(p1.name)  # prints: Jim

Python's instance attributes are useful when you need to store information specific to each object in your class.

Python class attributes list

I'll respond in English this time!

In Python, a class attribute is a variable that is defined inside the class definition but outside any instance method or constructor. Class attributes are shared among all instances of the class.

Here's an example:

class MyClass:
my_class_attribute = "Hello"
def init(self):
pass
def instance_method(self):
return self.my_instance_attribute
def another_instance_method(self):
return self.another_instance_attribute
my_obj1 = MyClass()
my_obj2 = MyClass()
print(my_obj1.my_class_attribute)  # prints: Hello
print(my_obj2.my_class_attribute)  # prints: Hello
print(my_obj1.instance_method())  # returns None, since no instance attributes have been set
print(my_obj2.instance_method())  # also returns None
my_obj1.my_instance_attribute = "Hi"
my_obj2.another_instance_attribute = "Goodbye"
print(my_obj1.instance_method())  # prints: Hi
print(my_obj2.another_instance_method())  # prints: Goodbye

As you can see, class attributes are shared among all instances of the class. However, instance attributes (attributes defined inside an instance method or constructor) are unique to each instance.

Here's a list of Python class attribute features:

Here's a list of Python class attribute use cases:

Keep in mind that Python has other ways to share state among instances, such as using static methods or properties, and these should be used depending on your specific requirements.