this is text from maual: > Deprecated since version 3.3, will be removed in version 3.8: The behaviour of this function depends on the platform: use perf_count

this is text from maual: > Deprecated since version 3.3, will be removed in version 3.8: The behaviour of this function depends on the platform: use perf_counter() or process_time() instead, depending on your requirements, to have a well defined behaviour. I would be wary of any crypto library that continued to work with a warning for 8 years and no one bothered to fix it. Most likely no one was maintaining it.