只允许输入数字

Question

我正在研究在youtube视频中发现的猜谜游戏，以学习python。 我想添加一个功能，通过输入数字而不是字母来阻止用户使我的游戏崩溃。

这是我的代码。

import random
num_of_guesses = 0

print("Hello, what is your name?")
name = input("Enter Name")

number = random.randint(1,20)
print("Hello",name, "I am thinking of a number between 1 and 20")

while num_of_guesses < 10:
    print("Take a guess")
    guess = input()
    guess = int(guess)
    if guess != int:
        print("Please enter a number")

    num_of_guesses = num_of_guesses + 1

    if guess < number:
        print("Number too low")
    if guess > number:
        print("Number too high")
    if guess == number:
        break

if guess == number:
    num_of_guesses = str(num_of_guesses)
    print("You won! In ", num_of_guesses, "guesses.")

我添加了

guess = int(guess)
    if guess != int:
        print("Please enter a number")

将代码段分段到while循环，希望它可以解决我的问题，但不能解决问题。