Python utils

fps.py

from time import time

class FpsCounter(object):
    def __init__(self, period=1, period_in_seconds=True):
        self.frame_counter = None
        self.interval_start = None
        self.period = period
        self.period_in_seconds = period_in_seconds
        self.total_seconds = 0
        self.average = 0

    def tick(self):
        cur_time = time()
        if self.frame_counter is not None:
            self.frame_counter += 1
            if self.period_in_seconds:
                interval = cur_time - self.interval_start
                if interval >= self.period:
                    self._update(cur_time, interval)
            elif self.frame_counter == self.period:
                self._update(cur_time, cur_time - self.interval_start)
        else:
            self._reset(cur_time)

    def notify_pause(self, pause_length):
        self.interval_start += pause_length

    def _reset(self, cur_time):
        self.frame_counter = 0
        self.interval_start = cur_time

    def _update(self, cur_time, interval):
        fps = self.frame_counter / interval
        new_total_seconds = self.total_seconds + interval
        self.average = (self.average * self.total_seconds + fps * interval) / new_total_seconds
        self.total_seconds = new_total_seconds
        print("FPS: {:.1f}, average: {:.1f}".format(fps, self.average))
        self._reset(cur_time)

os_utils.py

import os

def path_full_split(path):
    parts = []
    while True:
        new_path, part = os.path.split(path)
        if part:
            parts.append(part)
        if not new_path or new_path == path:
            if new_path:
                parts.append(path)
            break
        path = new_path
    parts.reverse()
    return parts