打开python遍历中文目录得到的文件路径报错?报错

各位朋友们好，我是一名python新手，现在遇到一个问题，恳请各位朋友们能指点一下我。

我的环境是:ubuntu14.04系统,python2.7

用python遍历一个目录，目录层次结构如下:

这是主目录: /home/chaoma/superboard/mydata/input/production

主目录下的目录层次结构如下

--超级画板教学资源_全处理_772

                                 -- Z+Z资源库

                                                                 --初中数学资源库

                                                                                  --1有理数

                                                                                                       ---1.1数的分类

                                                                                                                 -- 0.mp4

                                                                 -- name.txt

                                                                                                                 ……

                                                                                       --2一元一次方程

                                                                                       …..

                                               --动态解析高考数学综合题

                                                                     --第一章基本函数

                                                                                           --第四节

                                                                                                          --06福建理21

                                                                                                                             --name.txt

                                                                                                                                   --0.mp4

                                                                                                          --拓展练习4.1

                                                        ….

                                                                                                --第五节

                                                                                                ……

                                                                           --第二章三角函数

                                                                           …….

                                                ……

--学生作品集合_全处理_52

                     ………

我想实现的功能:找到所有含有0.mp4文件的父目录，并读取该父目录下面的name.txt文件

因此我写了以下的遍历函数来实现这一功能:

但是执行之后却报错了，报错如下：

打印这个报错的路径得到：

/home/chaoma/superboard/mydata/input/production/超级画板教学资源_全处理_772/动态解析高考数学综合题/第一章基本函数/第四节/06福建理21/name.txt

这个文件路径是存在的却报错，不知道为什么。

恳请各位朋友们能指点我一下，十分感谢。