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raspberrypi / picamera2

New libcamera based python library
BSD 2-Clause "Simplified" License
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[BUG]ImportError: cannot import name 'ControlType' from 'libcamera' (unknown location) #1056

Closed boyit1309 closed 3 months ago

boyit1309 commented 3 months ago

Please only report one bug per issue! Describe the bug After install Rasberry Pi OS updates, picamera2 now fails to initialize i also run :

source a-env/bin/activate sudo apt install libcamera-apps libcamera-dev python3-libcamera pip install numpy --upgrade pip install picamera2

To Reproduce import io import time import libcamera from picamera2 import Picamera2

picam2 = Picamera2() capture_config = picam2.create_still_configuration() picam2.configure(picam2.create_preview_configuration()) picam2.start()

time.sleep(1) data = io.BytesIO() picam2.capture_file(data, format='jpeg') print(data.getbuffer().nbytes)

time.sleep(1) data = io.BytesIO() picam2.switch_mode_and_capture_file(capture_config, data, format='jpeg') print(data.getbuffer().nbytes)

Expected behaviour run file a.py to test

Console Output, Screenshots $ python a.py

Traceback (most recent call last): File "/home/pi/Documents/a.py", line 4, in from picamera2 import Picamera2 File "/home/pi/Documents/a-env/lib/python3.11/site-packages/picamera2/init.py", line 5, in from .configuration import CameraConfiguration, StreamConfiguration File "/home/pi/Documents/a-env/lib/python3.11/site-packages/picamera2/configuration.py", line 1, in from .controls import Controls File "/home/pi/Documents/a-env/lib/python3.11/site-packages/picamera2/controls.py", line 4, in from libcamera import ControlType, Rectangle, Size ImportError: cannot import name 'ControlType' from 'libcamera' (unknown location)

Hardware : Pi 3B Camera Module V3 – 12MP

Additional context uname -a Linux pi 6.6.32-v8+ #1769 SMP PREEMPT Thu Jun 6 11:38:54 BST 2024 aarch64 GNU/Linux python -V Python 3.11.2

apt show python3-libcamera Package: python3-libcamera Version: 0.3.0+rpt20240617-1

libcamera-hello --version rpicam-apps build: 49344f2a8d18 17-06-2024 (12:09:08) libcamera build: v0.3.0+65-6ddd79b5

Name: picamera2 Version: 0.3.18 Summary: The libcamera-based Python interface to Raspberry Pi cameras, based on the original Picamera library Home-page: https://github.com/RaspberryPi/picamera2 Author: Raspberry Pi & Raspberry Pi Foundation Author-email: picamera2@raspberrypi.com License: BSD 2-Clause License Location: /home/pi/Documents/a-env/lib/python3.11/site-packages Requires: av, numpy, PiDNG, piexif, pillow, python-prctl, simplejpeg, v4l2-python3 Required-by:

davidplowman commented 3 months ago

Installing libcamera into a venv is actually quite tricky. There are some instructions on our camera forum, but I really wouldn't recommend trying that if you can avoid it. The easiest solution is to create your venv with --system-site-packages and you will have all the packages you need automatically, without the need to install anything else.

boyit1309 commented 3 months ago

Installing libcamera into a venv is actually quite tricky. There are some instructions on our camera forum, but I really wouldn't recommend trying that if you can avoid it. The easiest solution is to create your venv with --system-site-packages and you will have all the packages you need automatically, without the need to install anything else.

i reinstall os and try your solution and finally it works. Thank you.