How can I use Cython to create Python extensions?

How can I use Cython to create Python extensions?

Cython is a programming language that makes writing C extensions for Python as easy as Python itself. You can use it to speed up your Python code by compiling it into C. Would you like a simple example?

Yes, please provide a basic example.

Sure! First, install Cython using pip. Then, create a file named example.pyx with the following code:

def say_hello(name):
    print(f'Hello, {name}!')

Next, create a setup.py file to compile it:

from setuptools import setup
from Cython.Build import cythonize

setup(ext_modules=cythonize('example.pyx'))

Run python setup.py build_ext --inplace to compile it.

What can I do with the compiled extension?

Once compiled, you can import the extension in your Python code just like a regular module. For example, from example import say_hello and then call say_hello('World').