Hello! I'm trying to install PyXML on leopard and running into some difficulty. I follow the build and install commands as indicated in the readme file, however it still doesn't work. After some web browsing I realise this is something to do with setting an environmental variable, however, being a relative newbie, i'm not sure how to do this. If someone could give me the exact commands necessary (and within which folder this needs to be done) I would be most greatful. THanks!