capture still images from multiple cameras using python pygame

capturestill_multicamera.py

import time
from pathlib import Path
import pygame
import pygame.camera
from pygame.locals import *
from datetime import datetime

pygame.init()
pygame.camera.init()

try:
    pygame.camera.list_cameras()  # Camera detected or not
except:
    raise("couldn't read camera")
actual_cam_list = pygame.camera.list_cameras()
cam_list = ['cam0', 'cam1', 'cam2', 'cam3']
active_cameras = []
for x, y in zip(actual_cam_list, cam_list):
    globals()[y] = pygame.camera.Camera(
        x, (1920, 1080))  # generate_function(x,'data/')
    globals()[y].start()
    active_cameras.append(globals()[y])


def init(folder):
    folder_path = Path(folder).resolve()
    try:
        folder_path.mkdir(exist_ok=False)
    except FileExistsError:
        pass


def capture(camera, folder="data/"):
    t = time.localtime()
    folder_path = Path(folder).resolve()
    init(folder)
    # print(camera)
    img = camera.get_image()
    now = datetime.now()
    timestamp = now.strftime("%H:%M:%S.%f")
    out_file = str(folder_path.joinpath(
        "img_{0}.jpg".format(timestamp)).absolute())
    print("Saving filename: {0}".format(out_file))
    pygame.image.save(img, out_file)


if __name__ == '__main__':
    for i in active_cameras:
        capture(i)

hey, i hope you are well i just have a question if i have large number of cameras say millions and i want to capture images from millions cameras and path them to detection model this code will be efficient or not ?

@Wakebgh no, that's not what you're looking for.