# file open fails.

Tue Mar 24 23:14:27 CET 2009

```Atul. wrote:
> Hi I am using IDLE on Windows Vista and I have a small code.
>
> title = 'C:\Thesis\refined_title.txt'
> file = open(title)
>
> I get the following error from Python.
>
>
>     file = open(title)
> IOError: [Errno 22] invalid mode ('r') or filename: 'C:\\Thesis
> \refined_title.txt'
>
> Now, I can not understand the problem here I have all the permissions
> set for the folder, file as well. I can not understand why would it
> happen. Is it known on Windows Vista or am I missing something really
>
Backslash has a special meaning in string literals. Use a raw string