import time
import logging

class Timer:
    def __init__(self, timed, logger=None):
        self.logger = logger
        self.timed = timed

    def __enter__(self):
        self.start = time.perf_counter()
        return self

    def __exit__(self, *args):
        self.end = time.perf_counter()
        self.interval = self.end - self.start
        if self.logger is not None:
            if self.interval < 0.01:
                self.logger.debug(f"{self.timed}: {self.interval:0.2E} sec.")
            else:
                self.logger.debug(f"{self.timed}: {self.interval:0.5f} sec.")

# example usage with logging
logging.basicConfig(
    handlers=[
        logging.StreamHandler(),
        # logging.FileHandler("logfile.log", mode='a', encoding='utf8')
    ],
    format='%(asctime)s %(levelname)s [%(module)s]: %(message)s')
logger = logging.getLogger()
logger.setLevel(logging.DEBUG)

with Timer("Time", logger=logger) as t:
    # something you wanna time
    pass
    time.sleep(0.5)

# You can also access the time as follow:
print(t.interval)