functions

class Timer():

    '''A timer used to record how long a process takes.
    After instaniating, a .start() and .stop() can be used 
    before and after a process in respective order.'''## def init
    def __init__(self,format_="%m/%d/%y - %I:%M %p"):

        import tzlocal
        self.tz = tzlocal.get_localzone()
        self.fmt = format_
        
        self.created_at = self.get_time()# get time
         
    ## def get time method
    def get_time(self):
        import datetime as dt
        return dt.datetime.now(self.tz)

    ## def start
    def start(self):
        time = self.get_time()
        self.start = time
        print(f"[i] Timer started at{self.start.strftime(self.fmt)}")
        
        ## def stop
    def stop(self):
        time = self.get_time()
        self.end = time
        print(f"[i] Timer ended at {self.end.strftime(self.fmt)}")
        print(f"- Total time = {self.end-self.start}")
timer = Timer()
print(timer.created_at)
timer.start()
timer.stop()