python # Python Typing Test. with open('filename.txt', 'r') as file: content = file.read() print(content) with open('filename.txt', 'w') as file: file.write("Hello, World!") for item in my_list: print(item) squares = [x ** 2 for x in range(10)] def greet(name): return f"Hello, {name}!" add = lambda x, y: x + y try: result = 10 / 0 except ZeroDivisionError as e: print(f"Error: {e}") finally: print("Execution completed") def is_prime(n): if n <= 1: return False for i in range(2, int(n ** 0.5) + 1): if n % i == 0: return False return True my_dict = {"a": 1, "b": 2, "c": 3} for key, value in my_dict.items(): print(f"{key}: {value}") class Person: def __init__(self, name, age): self.name = name self.age = age def greet(self): print(f"Hello, my name is {self.name} and I am {self.age} years old.") my_list = [3, 1, 4, 1, 5, 9, 2] my_list.sort() print(my_list) import os import sys import random my_list = [1, 2, 3, 4, 5] sub_list = my_list[1:4] from datetime import datetime current_time = datetime.now() print(current_time) text = "Hello, World!" print(text.lower()) print(text.upper()) print(text[::-1]) count = 0 while count < 5: print(count) count += 1 age = 20 if age >= 18: print("Adult") else: print("Minor") with open('example.txt', 'w') as file: file.write("Hello, World!") my_dict = {"name": "John", "age": 25} my_dict["city"] = "New York" my_dict.pop("age") print(my_dict)