在Python语言中，从同一类中调用类成员变量会产生一个NameError

class MyClass:
    class_variable = "Class Variable"

    def __init__(self):
        self.instance_variable = "Instance Variable"

    def print_class_variable(self):
        print(self.class_variable)

    def print_instance_variable(self):
        print(self.instance_variable)


my_object = MyClass()
my_object.print_class_variable()
my_object.print_instance_variable()

Class Variable
Instance Variable