join vs instances
jason at jorendorff.com
Sun Dec 9 18:37:03 EST 2001
Robin Becker wrote:
> I had expected that the join operation would also apply to UserStrings
> somehow or that there would be some magic method that would allow join
> to be applied to user strings, but I can't find out how. [...]
return MyStr("<<" + self + ">>")
This works in Python 2.2. Older versions won't let you do that.
UserString is not nearly as versatile.
>>> x = MyStr("abcdefg")
>>> ','.join(['w', x, 'y', 'z']) # hey, it works!
If you're really interested in the C source code to join(), start here
and search for "join". You'll find it around line 1166.
Jason Orendorff http://www.jorendorff.com/
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