本文實例講述了Python實現計算對象的內存大小。分享給大家供大家參考，具體如下：
一般的sys.getsizeof()顯示不了復雜的字典。
查看類中的內容：
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def dump(obj): for attr in dir(obj):#dir顯示類的所有方法 print(" obj.%s = %r" % (attr, getattr(obj, attr))) |
這里用遞歸調用所有對象的getsizeof：
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def get_size(obj, seen=None): # From https://goshippo.com/blog/measure-real-size-any-python-object/ # Recursively finds size of objects size = sys.getsizeof(obj) if seen is None: seen = set() obj_id = id(obj) if obj_id in seen: return 0# Important mark as seen *before* entering recursion to gracefully handle # self-referential objects seen.add(obj_id) if isinstance(obj, dict): size += sum([get_size(v, seen) for v in obj.values()]) size += sum([get_size(k, seen) for k in obj.keys()]) elif hasattr(obj, '__dict__'): size += get_size(obj.__dict__, seen) elif hasattr(obj, '__iter__') and not isinstance(obj, (str, bytes, bytearray)): size += sum([get_size(i, seen) for i in obj]) return size |
希望本文所述對大家Python程序設計有所幫助。
原文鏈接：https://www.cnblogs.com/blackprience/p/10692391.html
