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python-internals

[Solved] explanation of C implementation python’s len function [closed]

October 23, 2022 by Kirat

There is nothing special with this function. Usually the functions written in C, especially those that do not call Python code, are much faster than ones written in Python. I am specifically taking the stance here that a reader knows how C works, otherwise the explanation would rather be a book. The builtin_len is the … Read more

Categories Solved Tags c++, cpython, python, python-internals

[Solved] Why are Python dictionaries NOT stored in the order they were created? [duplicate]

August 29, 2022 by Kirat

Python needs to be able to access D[thing] quickly. If it stores the values in the order that it receives them, then when you ask it for D[thing], it doesn’t know in advance where it put that value. It has to go and find where the key thing appears and then find that value. Since … Read more

Categories Solved Tags dictionary, python, python-internals

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