Regex similar to "^(?u)\w$", but without digits?

[Andreas]

Hello,

I'd like to create a regex that captures any unicode character, but
not the underscore and the digits 0-9. "^(?u)\w$" captures them also.
Is there a possibility to restrict an expression like "\w" to "\w
without [0-9_]"?
I'm using python 2.5.4

Thanks in advance,
Andreas