class MyClass:

    # Define class attributes in the class block
    my_class_attribute = "class attributes go here"
    MY_CONSTANT = "they are often class-specific contents"

    def __init__(self):
        self.my_instance_attributes = "instance attributes here"
    
class MyClass:

    # Define class attributes in the class block
    my_class_attribute = "class attributes go here"
    MY_CONSTANT = "they are often class-specific contents"

    def __init__(self):
        self.my_instance_attributes = "instance attributes here"
    
# Define class attributes in the class block