How big can python integers *really* get

You might know that Python doesn't have a max integer size. Unlike most other languages that are limited to having a 64 bit integer type, Python has a "theoretically infinite" maximum integer.

But, is that true?

Turns out no, Pythondoes have a maximum integer size. We'll look onto Python's source code and figure out how it stores and works with integer values.

We'll be covering the following topics:

• Python integers, and how they're different from all other languages (5 min)
• How they are implemented in C (3 min)
• What's truly the largest number that Python integers can store? (7 min)
• How does Python efficiently do math with these integers? (10 min)
• Q&A (5 min)

Python's source code in C is still a black box to many, and it's really easy to never think about how the language itself works. But knowing where to look in the C code can be a huge help in your Python journey, so I hope to provide insight into the C source code.

• An introduction to the CPython codebase
• Basics of Python data types in C

Understanding Python and C fundamentals would be required to be able to follow this talk.