Python IDLE 2.7將不會執行文件，直到我點擊「enter」

Question

由於某些原因，當我選擇「運行模塊」時，IDLE將不會運行第一行代碼，直到按下「enter」。這種類型的程序不是一個大問題，但我很困惑爲什麼會發生這種情況。任何人都可以爲我解決這個問題嗎？下面的代碼：

print("Please think a number between 0 and 100!") 
guess = 50 
upper = 100 
lower = 0 
status = "" 
while status != "c": 
    print("Is your secret number ") + str(guess) + ("?") 
    print ("Lower: ") + str(lower) 
    print ("Upper: ") + str(upper) 
    status = raw_input("Enter 'h' to indicate the guess is too high. Enter 'l' to indicate  the guess is too low. Enter 'c' to indicate I guessed correctly. ") 
    if status == "h": 
     upper = guess 
     guess = guess - (guess - lower)/2 
    elif status == "l": 
     lower = guess 
     guess = guess + (upper - guess)/2 
    elif status == "c": 
     break 
    else: 
    print("Sorry, I did not understand your input.") 
print("Game over. Your secret number was: ") + str(guess) 

非常感謝！

Answer 1

參見http://anh.cs.luc.edu/python/hands-on/3.1/handsonHtml/execution.html（參見第1.9.2節）。如果之前的程序中斷，這是一個有時會發生的錯誤。