readling newlines

[Alessandro Crugnola *sephiroth*]

Hi, I'm trying to detect the newlines method of a file opened.
I'm using the 'U' mode as parameter when opening a file, but for every file opened the result is always "\r\n", even if the file has
been saved with the "\n" newline method.
Is there i'm missing?

I'm on Windows with python 2.3.3