L = [('Bob', 75), ('Adam', 92), ('Bart', 66), ('Lisa', 88)]
def by_name(t): def sort_name(t): l = [i for i in t[:][0]] return sorted(l) return sorted(t,key = sort_name)
print(by_name(L))
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惟莉V雅爱
L = [('Bob', 75), ('Adam', 92), ('Bart', 66), ('Lisa', 88)]
def by_name(t): def sort_name(t): l = [i for i in t[:][0]] return sorted(l) return sorted(t,key = sort_name)
print(by_name(L))