Functions written in Cython only using Python’s def keyword are visible to other Python code, but incur a performance penalty. The cython.cfunc decorator indicates the function in question is a ...

If some function is called repeatedly in a tight loop, even if it isn’t a long-running function, that’s guaranteed to impact performance. In the above example, the function add (and the ...

In pytest, you define fixtures using a combination of the pytest.fixture decorator, along with a function definition. For example, say you have a file that returns a list of lines from a file, in ...