Migration from Cython

Removing .pyx Files

Replace Cython .pyx files with plain .py files. Pyvorin compiles them to native code without manual type declarations:

# Before (Cython)
def fib(int n):
    cdef int a = 0, b = 1, i
    for i in range(n):
        a, b = b, a + b
    return a

# After (Pyvorin)
def fib(n: int) -> int:
    a, b = 0, 1
    for _ in range(n):
        a, b = b, a + b
    return a

Build System

Remove setup.py Cython extensions and .pxd files. Add Pyvorin to your CI pipeline instead.

cdef Classes

Cython cdef class performance can be matched with Pyvorin-compiled dataclasses and functions operating on them.