Python打印语句“语法错误：无效语法”

Question

为什么Python在第9行的简单print语句中给我一个语法错误？

import hashlib, sys 
m = hashlib.md5() 
hash = "" 
hash_file = raw_input("What is the file name in which the hash resides? ") 
wordlist = raw_input("What is your wordlist? (Enter the file name) ") 
try: 
    hashdocument = open(hash_file,"r") 
except IOError: 
    print "Invalid file." # Syntax error: invalid syntax 
    raw_input() 
    sys.exit() 
else: 
    hash = hashdocument.readline() 
    hash = hash.replace("\n","") 

的Python的版本是：

Python 3.2.2 (default, Sep 4 2011, 09:07:29) [MSC v.1500 64 bit (AMD64)] on win 
32 

Answer 1

在Python 3，打印是一个函数，你需要调用它像print("hello world")。

Answer 2

使用print("use this bracket -sample text")

在Python 3 print "Hello world"给无效的语法错误。

要在Python3中显示字符串内容，必须使用这个("Hello world")括号。