Caffe和crontab

Question

我试图像这样通过crontab运行python脚本

@reboot cd /root/open_nsfw/ && /usr/bin/screen -dm -L /usr/bin/python /root/open_nsfw/fn_tcp2.py

但失败的原因找不到caffe ImportError: No module named caffe

caffe.__file__给了我这个输出

/root/caffe/python/caffe/__init__.pyc

由crontab运行的sys.path的输出是

['/root/open_nsfw', '/usr/lib/python2.7', '/usr/lib/python2.7/plat-x86_64-linux-gnu', '/usr/lib/python2.7/lib-tk', '/usr/lib/python2.7/lib-old', '/usr/lib/python2.7/lib-dynload', '/usr/local/lib/python2.7/dist-packages', '/usr/lib/python2.7/dist-packages', '/usr/lib/python2.7/dist-packages/PILcompat']

（没有caffe）但是来自shell

['', '/root/caffe/python', '/root/open_nsfw', '/usr/lib/python2.7', '/usr/lib/python2.7/plat-x86_64-linux-gnu', '/usr/lib/python2.7/lib-tk', '/usr/lib/python2.7/lib-old', '/usr/lib/python2.7/lib-dynload', '/usr/local/lib/python2.7/dist-packages', '/usr/lib/python2.7/dist-packages', '/usr/lib/python2.7/dist-packages/PILcompat']

（caffe就在那里！）所以，我认为我有解决这个问题的所有因素，但我无法弄清楚如何！

请指教，谢谢！

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编辑解决了在脚本开头添加这些行的问题

import sys
sys.path.insert(0, "/root/caffe/python/")

Answer 1

从crontab运行时，您没有在shell中设置环境变量。你只能得到最低限度。您需要在crontab脚本中明确设置PYTHONPATH以包含caffe