python将MongoDB里的ObjectId转换为时间戳的方法
本文实例讲述了python将MongoDB里的ObjectId转换为时间戳的方法。分享给大家供大家参考。具体分析如下:
MongoDB里的_id字段前四位是时间戳的16进制表示,通过Python可以很容易从_id中提取出时间戳来
def timestamp_from_objectid(objectid): result = 0 try: result = time.mktime(objectid.generation_time.timetuple()) except: pass return result
调用方法:
print(timestamp_from_objectid(ObjectId('5217a543dd99a6d9e0f74702')))
返回:1377252547.0
PS:这里再为大家推荐一个本站Unix时间戳转换工具,附带了各种语言(Python/PHP/java/MySQL等)Unix时间戳的操作方法:
Unix时间戳(timestamp)转换工具:http://tools.jb51.net/code/unixtime
希望本文所述对大家的Python程序设计有所帮助。

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