hunter_profile_example.py

from time import time

from hunter import Action
from hunter import trace

class ProfileAction(Action):
    def __init__(self):
        self.timings = {}

    def __call__(self, event):
        if event.kind == 'call':
            self.timings[id(event.frame)] = time()
        else:
            start_time = self.timings.pop(id(event.frame), None)
            if start_time is None:
                return

            if event.kind == 'exception':
                print(f"{event.function} raised exception: {event.arg}. Duration: {time() - start_time:.4f}s")
            elif event.kind == 'return':
                print(f"{event.function} returned: {event.arg}. Duration: {time() - start_time:.4f}s")
            else:
                print(f"Unexpected event kind: {event.kind}")

with trace(
    module_startswith='api.',
    kind__in=['call', 'return', 'exception'],
    action=ProfileAction
):  
    start_application(  ... )