Python不常用用法

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字数统计: 238 字 | 阅读时长 ≈ 1 分钟

Python 日常使用时的一些方法或技巧，怕忘记怕麻烦，记录一下

通过值获取键


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>>> dct = {'Name': 'Alice', 'Age': 18, 'uid': 1001, 'id': 1001}
>>> def get_key1(dct, value):
...   return list(filter(lambda k:dct[k] == value, dct))
>>> get_key1(dct, 1001)
['id', 'uid']
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# 某函数返回的结果（参数 md5dict）
{
    '/root/MyDocs/Python/02-PhotosMD5/76478297_p0.jpg': '6beb7af8d37e26eb88bb1b75c8e51474', 
    '/root/MyDocs/Python/02-PhotosMD5/76478297_p0_copy.jpg': '6beb7af8d37e26eb88bb1b75c8e51474', 
    '/root/MyDocs/Python/02-PhotosMD5/561284.jpg': '4f9d1c75bd62b0d7e3fdd0abd810ce34', 
    '/root/MyDocs/Python/02-PhotosMD5/561271.jpg': 'bb60b6e6626968cde17cad0a8f18290b', 
    '/root/MyDocs/Python/02-PhotosMD5/561279.jpg': 'e5af4c3275dafbef5932ab69c446374c'
}

# 变量 cp的内容
('6beb7af8d37e26eb88bb1b75c8e51474', 2)
('4f9d1c75bd62b0d7e3fdd0abd810ce34', 1)
('bb60b6e6626968cde17cad0a8f18290b', 1)
('e5af4c3275dafbef5932ab69c446374c', 1)


def analysedDict(md5dict):
    cp = Counter(md5dict.values())  # 只取 MD5值

    def filterFun(dicts, value):
        bad = list(filter(lambda k:dicts[k] == value, dicts))
        print(bad)

    for i in cp.items():
        if i[1] > 1:
            print("\033[0;31m{0}\033[0m".format(i))
            filterFun(md5dict, i[0])
            
# ---- 结果 ------
# ('6beb7af8d37e26eb88bb1b75c8e51474', 2)
# ['/root/MyDocs/Python/02-PhotosMD5/76478297_p0.jpg', '/root/MyDocs/Python/02-PhotosMD5/76478297_p0_copy.jpg']

快速启动 http服务器


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# python2
python -m SimpleHTTPServer