Motivated by responses to the previous post, I decided to try installing mod_python along with apache2 via DarwinPorts. Had some trouble installing DarwinPorts itself, though, which turned out to be Fink-related. The key is to get the Fink bits out of your $PATH while building. I reset my $PATH to a nice simple "/bin:/sbin:/usr/bin:/usr/sbin". Otherwise, TCL-related problems will hang you up: "Tcl package directory not found. Please specify its location with --with-tclpackagedir." So, ignore that, fix your $PATH and re-run configure. (The real reason I'm posting this is that I suspect I will hit this same problem on a new machine in a year or so and won't remember how I fixed it...)