> pf@pefunbk> python
> Python 1.5.2 (#1, Jul 23 1999, 06:38:16) [GCC egcs-2.91.66 19990314/Linux (egcs- on linux2
> Copyright 1991-1995 Stichting Mathematisch Centrum, Amsterdam
> >>> import string
> >>> print string.upper("ä")
> Ä
> >>>
This threw me off too. However try this:
python -c 'print "ä".upper()'
It will print "ä". A mystery? No, the GNU readline library calls
setlocale(). It is wrong, but I can't help it. But it only affects
interactive use of Python.
> In recent Linux distributions almost every Linux C-program seems to
> contain this obligatory 'setlocale(LC_ALL, "");' line, so it's easy
> to forget about it. However the core Python interpreter does not.
> it seems the Linux C-Library is not fully ANSI compliant in this case.
> It seems to honour the setting of $LANG regardless whether a program
> calls 'setlocale' or not.
No, the explanation is in GNU readline.
Compile this little program and see for yourself:
#include <ctype.h>
#include <stdio.h>
main()
{
printf("toupper(%c) = %c\n", 'ä', toupper('ä'));
}
--Guido van Rossum (home page: http://www.python.org/~guido/)
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