Timer decorator for function timing

timer_decorator.py

import functools
import time

def timer(func):
    """Print the runtime of a decorated function."""
    @functools.wraps(func)
    def wrapper_timer(*args, **kwargs):
        start_time = time.perf_counter()
        value = func(*args, **kwargs)
        end_time = time.perf_counter()
        run_time = end_time - start_time
        print(f'Finished {func.__name__!r} in {run_time:.4f} secs')
        return value
    return wrapper_timer

def print_time(name, begin_time, end_time):
    run_time = end_time - begin_time
    print(f'Finished {name} {run_time:.2f} seconds')