sriram@sriram-ThinkPad-E580:~/opencv_ros/src/facescan/src$ workon cv
(cv) sriram@sriram-ThinkPad-E580:~/opencv_ros/src/facescan/src$ rosrun facescan detect_faces_video.py --prototxt deploy.prototxt.txt --model res10_300x300_ssd_iter_140000.caffemodel
from: can't read /var/mail/imutils.video
import-im6.q16: not authorized `np' @ error/constitute.c/WriteImage/1037.
import-im6.q16: not authorized `argparse' @ error/constitute.c/WriteImage/1037.
import-im6.q16: not authorized `imutils' @ error/constitute.c/WriteImage/1037.
import-im6.q16: not authorized `time' @ error/constitute.c/WriteImage/1037.
import-im6.q16: not authorized `cv2' @ error/constitute.c/WriteImage/1037.
/home/sriram/opencv_ros/src/facescan/src/detect_faces_video.py: line 13: syntax error near unexpected token `('
/home/sriram/opencv_ros/src/facescan/src/detect_faces_video.py: line 13: `ap = argparse.ArgumentParser()'