Python no module even when it's installled

[sxiii]

Running like: sudo python3 fake.py -B ./back.mp4 -W /dev/video0 or just like sudo python3 -u fake.py leads to:

Traceback (most recent call last):   File "fake.py", line 17, in <module>     import requests_unixsocket ModuleNotFoundError: No module named 'requests_unixsocket'

However,

[sw@t490s fakecam]$ python3 -m pip install requests
Defaulting to user installation because normal site-packages is not writeable
Requirement already satisfied: requests in /home/sw/.local/lib/python3.8/site-packages (2.23.0)
Requirement already satisfied: certifi>=2017.4.17 in /usr/lib/python3.8/site-packages (from requests) (2020.6.20)
Requirement already satisfied: urllib3!=1.25.0,!=1.25.1,<1.26,>=1.21.1 in /usr/lib/python3.8/site-packages (from requests) (1.25.9)
Requirement already satisfied: idna<3,>=2.5 in /usr/lib/python3.8/site-packages (from requests) (2.10)
Requirement already satisfied: chardet<4,>=3.0.2 in /usr/lib/python3.8/site-packages (from requests) (3.0.4)

Can you lead me what to check?

Thanks

[fangfufu]

Try pip3 install requests_unixsocket

[sxiii]

@fangfufu same - requirements already satisfied.

But I've just tried to recompile v4l2loopback kernel module. Seems I need a reboot & modprobe:

[sw@t490s fakecam]$ python3 -u fake.py 
Cannot set camera property 3 to 1280, used value: 640.0
Cannot set camera property 5 to 30, used value: 10.0
Traceback (most recent call last):
  File "fake.py", line 379, in <module>
    main()
  File "fake.py", line 352, in main
    cam = FakeCam(
  File "fake.py", line 114, in __init__
    self.fake_cam = pyfakewebcam.FakeWebcam(v4l2loopback_path, self.width, self.height)
  File "/home/sw/.local/lib/python3.8/site-packages/pyfakewebcam/pyfakewebcam.py", line 54, in __init__
    fcntl.ioctl(self._video_device, _v4l2.VIDIOC_S_FMT, self._settings)
OSError: [Errno 22] Invalid argument

[AwesomeKenP]

@sxiii i had the same issue and what fixed it was specifying the video device path after loading v4l2loopback module:
python3 fake.py --v4l2loopback-path=/dev/videoN, where N was 4 in my case.

[fangfufu]

This is no longer relevant, as I am using Mediapipe as the backend. Please check out the latest commit.