Python Slots
Python Slots Pickle
Slots
Python老鸟都应该看过那篇非常有吸引力的 Saving 9 GB of RAM with Python’s slots 文章，作者使用了slots让内存占用从25.5GB降到了16.2GB。在当时来说，这相当于用一个非常简单的方式就降低. Slot Machine in Python 3. DM::OJ Slot Machines challenge in Python 3. Hot Network Questions Pentopia: One-way Crossing 开一个生日会 explanation as to why 开 is used here? Infinitely many ℕ Can I (a US citizen) travel from Puerto Rico to Miami with just a copy of my passport? In contrast, a class instance with slots declared to be (no data) is only 16 bytes, and 56 total bytes with one item in slots, 64 with two. For 64 bit Python, I illustrate the memory consumption in bytes in Python 2.7 and 3.6, for slots and dict (no slots defined) for each point where the dict grows in 3.6 (except for 0, 1, and 2.
Introduction
The attributes of objects are stored in a dictionary '__dict__'. Like any other dictionary, a dictionary used for attribute storage doesn't have a fixed number of elements. In other words,you can add elements to dictionaries after they have been defined, as we have seen in our chapter on dictionaries. This is the reason, why you can dynamically add attributes to objects of classes, you have created.
We recommend to continue with our chapter 'Python3 Slots' of our Python3 tutorial. It's compatible with version 2.x anyway.