# Define two identical lists
list1 = [1, 2, 3]
list2 = [1, 2, 3]

# Define another list that refers to the first list
list3 = list1

# Comparison using 'is'
print(list1 is list2) # Output: False
print(list1 is list3) # Output: True

# Comparison using '=='
print(list1 == list2) # Output: True
print(list1 == list3) # Output: True

class MyClass:
def method_not_implemented_yet(self):
pass # This method is not yet implemented

# Define a function that is not yet implemented
def my_function():
pass # This function is not yet implemented

# Use pass in a loop
for i in range(5):
if i == 3:
pass # We could perform an action here, but currently we do nothing
print(I)

# Deleting a variable
x = 10
print(x) # Output: 10
del x
# print(x) # This line will cause an error because x has been deleted

# Deleting an element from a list by its index
my_list = [1, 2, 3, 4, 5]
del my_list[2]
print(my_list) # Output: [1, 2, 4, 5]

# Deleting a slice from a list
my_list = [1, 2, 3, 4, 5]
del my_list[1:3]
print(my_list) # Output: [1, 4, 5]

# Deleting an attribute from an object
class MyClass:
def init(self):
self.attr1 = "value1"
self.attr2 = "value2"

obj = MyClass()
print(obj.attr1) # Output: value1
del obj.attr1
# print(obj.attr1) # This line will cause an error because attr1 has been deleted

# Using 'with' statement to open and automatically close a file
with open('example.txt', 'w') as file:
file.write('Hello, World!')

# Reading from the file
with open('example.txt', 'r') as file:
content = file.read()
print(content)

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

# Creating an instance of the Person class
person1 = Person("Alice", 30)

# Accessing the initialized attributes
print("Name:", person1.name) # Output: Alice
print("Age:", person1.age) # Output: 30