Python 3.13’s installer lets you install the free-threaded build of Python side-by-side with the regular build. You can use the “py” utility to select which one to use for a given program. IDG ...

Use a math library like NumPy or Numba, or compile your code to C with Cython. These external solutions do get the job done, and a whole subculture of Python revolves around using them well.

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