When I started learning Python the excessive importing made no sense to me. It seemed like something that obviously the computer should figure out (isn't that what computers are good at?). If it would make people happy, I suppose we could add "from glon imprt web2py" (or whatever) to every file.
That said, I can understand that perhaps explicit impeding cold have perfomanxe advantages (does it?) or that there is some perceptual value to explicitness,