#!/usr/bin/env python3
#-*- coding:utf-8 -*-
L = [('Bob', 75), ('Adam', 92), ('Bart', 66), ('Lisa', 88)]
def by_name(t):
     return t[0]
L2 = sorted(L, key=by_name)
def by_score(t):
    return t[1]
L3 = sorted(L, key=by_score)

print(L2, '\n', L3)
