Python2.7 使用多个文件处理FileNotFoundError异常

Question

#!/usr/bin/env python

-*- coding: utf-8 -*-

def count_words(filename):
"""计算一个文件大致包含多少个单词"""
try:
with open(filename) as file_object:
contents=file_object.read()
except FileNotFoundError:
message="Sorry,the file "+filename+" does not exist."
print(message)
else:
#计算文件大致包含多少个单词
words=contents.split()
num_words=len(words)
print("The file "+filename+" has about "+str(num_words)+" words.")
filenames=['alice.txt','siddhartha.txt','moby_dick.txt','little_women.txt']
for filename in filenames:
count_words(filename)

其中siddhartha.txt不在文件夹内，想请问一下这是什么情况~

Answer 1

函数也需要缩进，按下面这段试下：

#!/usr/bin/env python
-*- coding: utf-8 -*-
def count_words(filename):
"""计算一个文件大致包含多少个单词"""
    try:
            with open(filename) as file_object:
                    contents=file_object.read()
            except FileNotFoundError:
                    message="Sorry,the file "+filename+" does not exist."
            print(message)
    else:
            #计算文件大致包含多少个单词
            words=contents.split()
            num_words=len(words)
            print("The file "+filename+" has about "+str(num_words)+" words.")
            filenames=['alice.txt','siddhartha.txt','moby_dick.txt','little_women.txt']
            for filename in filenames:
                    count_words(filename)