Let's build and optimize a Rust extension for Python
Briefly

"In this article we'll focus on Rust, which benefits from modern tooling, excellent Python integration, and is memory- and thread-safe, reducing crashes compared to C and C++."
"If we want to get an exact answer for counting unique values, using a set() is straightforward, but it can lead to high memory usage with large datasets."
"For counting unique values using a probabilistic algorithm, we can significantly reduce memory usage while still achieving results that are 'good enough' in many situations."
"The approximate version of counting unique values not only consumes less memory—about 3% of the accurate algorithm—but also provides close estimates on repeated trials."
Read at PythonSpeed
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