python-internals

List size in Python and amount of RAM

When executing the following code n = 10 ** 9 alist = [0] * n The computer starts to work very slowly (probably due to la ... ome recommendations for the maximum size of the list as a percentage of the amount of RAM, so that there are no such freezes?

Python len () and len () what is the difference?

What is the difference between len() and .__len__()? And can they return different values?

What is an object in Python. Why id (a) = = id (b) = = id (1)?

I am detailing the question. The Python books say that everything in Python is an object. We take a traditional approach to ... me, it is not enough, so I ask the respected pros. In Python, everything is an object. No variable names. Hence my question.

Magic methods

How is the magic method architecture implemented in python? For example: class SomeClass: def __init__(self, x): ... nt(repr(a)) That is, how is the call of the desired method of the desired class determined? (repr of the SomeClass class)?

What is Ellipsis in Python?

In Python's list of native constants, one can find Ellipsis. print(Ellipsis, type(Ellipsis)) #-> (Ellipsis, <type 'ell ... e constant Ellipsis? What problems can be solved using Ellipsis? if possible, can you cite a functional example of its use?

How does Python handle common functions and lambdas functions internally?

I'm looking at Python's lambdas functions compared to the common functions that def uses to create them. Here is an example ... with respect to lambda expressions. Question How does Python handle common functions and lambdas functions internally?

How does Python treat the "yield" command internally?

I was reading about Python's yield command, and it seems to me that this command creates a generator that would be a kind o ... on So I would like to know how Python treats the yield command internally? Or what structure or mechanism does yield Use?