Understand where integer objects are stored in Python

The storage locations of integer objects in Python are different. Some are pre-allocated memory and are always stored in memory, while others open up space when used.

The reason for saying this, You can take a look at the following code:

As can be seen from the above code, the integer type 5 always exists, but the integer type 500 does not always exist.

So which integers have pre-allocated memory addresses?

As we know from the above, non-negative integers less than or equal to 256 (2**8) are always stored (that is to say, their memory addresses are allocated in advance and do not need to be allocated later)

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And negative numbers will not be opened in advance.