Cursed newlines and readline()

Thomas Wouters thomas at
Fri Sep 13 15:27:30 CEST 2002

On Thu, Sep 12, 2002 at 06:59:14PM +0000, Edward K. Ream wrote:

> According to one of Leo's Linux users, the Python's readline() routine on
> Linux delivers "\r\n" line end strings verbatim, while the windows versions
> force the string to use the Unix convention of using only "\n". This seems
> unfortunate.  Is there a justification for it?  If not, I would like to
> suggest that readline() work the same on all platforms and that it deliver
> only "\n" as a line terminator.

You can open the file in 'binary' mode (adding 'b' to the mode string) and
the file will contain '\r\n' on both platforms (and any other platforms.)

Thomas Wouters <thomas at>

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