heziyi@heziyi-ZenBook-UX425IA-U4700IA:~/桌面/yotim$ python yolo.py --image images/baggage_claim.jpg --yolo yolo-coco
 Traceback (most recent call last):
 File “yolo.py”, line 1, in 
 import numpy as np
 ImportError: No module named numpy

方法：
sudo apt-get install python-numpy
sudo apt-get install python-opencv