why i can't use webcam for real-time detect

[cartoonkeng]

❔Question

I try to use 'python3 detect.py --source 0' for webcam detect but it's not work
it give me output like this

 1/1: 0... Traceback (most recent call last):
  File "detect.py", line 178, in <module>
    detect()
  File "detect.py", line 51, in detect
    dataset = LoadStreams(source, img_size=imgsz, stride=stride)
  File "/home/caton/yolov5/utils/datasets.py", line 279, in __init__
    if 'youtube.com/' in url or 'youtu.be/' in url:  # if source is YouTube video
TypeError: argument of type 'int' is `not iterable

Anyone know how to fix it?

Additional context

[github-actions]

👋 Hello @cartoonkeng, thank you for your interest in 🚀 YOLOv5! Please visit our ⭐️ Tutorials to get started, where you can find quickstart guides for simple tasks like Custom Data Training all the way to advanced concepts like Hyperparameter Evolution.

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[josenxx]

I have the same issue on ubuntu 20.04 LTS and the errror message is the same.

Update 1: webcam works fine on MAC
Update 2:
Pytorch 1.8.1 + ubuntu = webcam does not work
Pytorch 1.9 + ubuntu = webcam does not work
Pytorch 1.8.1 + mac = webcam works
Pytorch 1.9 + mac = webcam works

It seems to be a ubuntu issue

[glenn-jocher]

@josenxx @cartoonkeng this is a bug due to YouTube integration which was fixed in #2818. Please git pull or git clone to receive this update and let us know if you have any other issues or feedback. Thank you!

[glenn-jocher]

@josenxx @cartoonkeng closing as duplicate of issue #2810.

Please review existing issues prior to opening new ones, thank you!

[cartoonkeng]

Thank you all a lot I'll try