Python print语句“语法错误：语法无效”

Question

为什么Python在第9行的简单print语句中给出了语法错误？

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","")

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中，print是一个函数，你需要像print("hello world")一样调用它。

Answer 2

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

在Python 3 print "Hello world"中，语法错误无效。

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