list and dict

''' Created on 2011-9-29 @author: xgzhao ''' list2 = list('foo') print list2 list2.remove('f') print list2 print [i*2 for i in range(8) if i%2 == 0] print [i for i in reversed(range(8))] fdict = dict((['x', 1], ['y', 2])) print fdict tdict = {} print tdict print fdict.keys(), fdict.values(), fdict.items() ''' Created on 2011-9-29 @author: xgzhao ''' db = {} def newUser(): prompt = 'login desired: ' while True: name = raw_input(prompt) if db.has_key(name): prompt = 'name taken, try another' continue else: break pwd = raw_input('password: ') db[name] = pwd def oldUser(): name = raw_input('login: ') pwd = raw_input('password: ') passwd = db.get(name) if passwd == pwd: print 'Welcome back ', name else: print 'login incorrect' def showmenu(): prompt = """ (N)ew User Login (E)xisting User Login (Q)uit Enter choice = """