二元搜索（python）

最近在学习Python中。貌似很久都没写个日志了，刚看到二元搜索，就往上面写写吧

def search(seqneuce,number,lower,upper):
    if lower == upper:
        assert number == seqneuce[upper]
        print upper
        return upper;
    else:
        middle = (lower + upper) // 2
        if number > seqneuce[middle]:
            return search(seqneuce,number,middle+1,upper)
        else:
            return search(seqneuce,number,lower,middle)


seq=[12,232,43,54,57,879,32,43]
seq.sort()
print seq
search(seq,43,0,8)