[Python-Dev] \u and \U escapes in raw unicode string literals
"Martin v. Löwis"
martin at v.loewis.de
Sat May 12 00:48:00 CEST 2007
> Using double backslashes won't cause that reaction:
Please refer to the subject. We are talking about raw strings.
>> Windows path names are one of the two primary applications of raw
>> strings (the other being regexes).
> IMHO the primary use case are regexps
It's not a matter of opinion. It's a statistical fact that these
are the two cases where people use raw strings most.
> and for those you'd
> definitely want to be able to put Unicode characters into your
For regular expressions, you don't need them as part of the
string literal syntax: The re parser itself could support \u,
just like it supports \x today.
> BTW, if you use ur"..." for your expressions today (which you should
> if you parse text), then nothing will change when removing the
> 'u' prefix in Py3k.
How do you know? Py3k hasn't been released, yet.
More information about the Python-Dev