import subprocess
try:
# Execute the lsof command and get the output
output = subprocess.check_output(["sudo", "lsof", "/dev/video0"]).decode()
except subprocess.CalledProcessError:
print("No process is currently accessing /dev/video0.")
else:
# Find the PID of the process that is using the camera
lines = output.strip().split('\n')
if len(lines) > 1: # the first line is the header, so we start from the second line
fields = lines[1].split()
pid = fields[1] # PID is the second field
# Kill the process
subprocess.run(["sudo", "kill", "-9", pid])
print(f"Killed process {pid} that was using /dev/video0.")