Basic newbie question regarding xpath and xml:<BR><BR>Is there a syntax to save match patterns? <BR>With regex/grep stuff, save a match pattern with "\1", "\2", etc. for later use in a replace ...

I'm trying to run Xpath queries using etree, but I can't seem to figure out the Xpath syntax. Here's a (sanitized) section of my XML document. 1) Query using XML based on some value like the 'id' or ...