Error in python IOError:no such file or directory，如何解决？

[OrangeHat]

系统：Windows7
>>>
代码：
from sys import argv

script,filename=argv

txt=open(filename)

print "Here's your file %r" %filename
print txt.read()

print "Type the filename again:"
file_again=raw_input(">")

txt_again=open(file_again)

print txt_again.read()
>>>
ex15_sample.txt：
This is stuff I typed into a file.
It is really cool stuff.
Lots and lots of fun to have in here.
>>>
文件目录：
ex15.py：C:\Python27\ex
ex15_sample.txt：C:\Python27\ex
>>>
错误提示：
c:\python27\ex >python ex15.py ex15_sample.txt
Traceback (most recent call last):
File "ex15.py", line 5, in <module>
txt=open(filename)
IOError: [Errno 2] No such file or directory: 'ex15_sample.txt'

[SharkIng]

试试python ex15.py ./ex15_sample.txt

[wang2191195]

你看下是不是文件名后缀被隐藏的 真实的文件名是ex15_sample.txt.txt

[OrangeHat]

@wang2191195
非常感谢，的确是这样的问题.

[wang2191195]

@OrangeHat ╮(╯▽╰)╭ 被坑过的都懂。。。