[Python-Dev] [python] Re: New lines, carriage returns, and Windows

[Michael Foord]

skip at pobox.com wrote:
>     Michael> Actually, I usually get these strings from Windows UI
>     Michael> components. A file containing '\r\n' is read in with '\r\n'
>     Michael> being translated to '\n'. New user input is added containing
>     Michael> '\r\n' line endings. The file is written out and now contains a
>     Michael> mix of '\r\n' and '\r\r\n'.
>
> So you need a translation layer between the UI component and your code.
> Treat the component as a text file and perform the desired mapping.  Yes?
>
>   

Actually the problem was reported by one of the IronPython developers on 
behalf of another user. We stick to using the .NET file I/O and so don't 
have a problem. The only time it is an issue for us is our tests, where 
we have string literals in our test code (where new lines are obviously 
'\n') and we do a manual 'replace'. Not very difficult.

It is just slightly ironic that the time Python 'gets it wrong' (for 
some value of wrong) is when you are using text mode for I/O :-)

Michael

> Skip
>
>