def login(vo, addr = None, keypath = " "):
""" Connect to Grid and create a new proxy."""
if is_ui() == 1:
gr = Grid()
else:
remhost = RemoteHost(addr, keypath)
gr = Grid(rhost = remhost)
creategridtemp(gr.getExecutor())
gr.setVo(vo)
gr.newProxy()
gr.getData().chdir("/grid/"+vo)
Jobs(gr.getExecutor())
