For review: PEP 308 - If-then-else expression
tismer at tismer.com
Tue Feb 11 23:42:27 CET 2003
Andrew Dalke wrote:
> Christian Tismer
>>>If I were trying to make code easy to understand for inexperienced
>>>programmers, I would write str.join(',', lines) instead of
>>Great idea, IMHO!
> I thought it was kinda neat as well, until I realized
> str.join(sep, ["A", "B"])
> requires that sep be a byte string.
>>>> str.join(u",", ["A", "B"])
> Traceback (most recent call last):
> File "<stdin>", line 1, in ?
> TypeError: descriptor 'join' requires a 'str' object but received a
The thing is symmetric:
>>> unicode.join(u" ", ("a","b"))
> sep.join(["A", "B"])
> is better because it doesn't enforce the extra type checking.
It is all, somehow,consequent.
But I guess, the behavior is by chance and not intended.
Unless the class method notation is an artifact,
I think something should be done about it.
Something like a super-string class, which is as
dynamic as the "".join implementation.
ALternatively, it would need to be considered to
revert here and make the class method calling unavailable.
ciao - chris
Christian Tismer :^) <mailto:tismer at tismer.com>
Mission Impossible 5oftware : Have a break! Take a ride on Python's
Johannes-Niemeyer-Weg 9a : *Starship* http://starship.python.net/
14109 Berlin : PGP key -> http://wwwkeys.pgp.net/
work +49 30 89 09 53 34 home +49 30 802 86 56 pager +49 173 24 18 776
PGP 0x57F3BF04 9064 F4E1 D754 C2FF 1619 305B C09C 5A3B 57F3 BF04
whom do you want to sponsor today? http://www.stackless.com/
More information about the Python-list