先说结论：以后在涉及到定时任务，指定python的环境路径。

shell中python路径问题

定时任务默认的python路径为系统自带

写一个python程序sys_path.py

import sys

print(sys.path)

放入shell脚本sys_path.sh

python ./sys_path.py

执行sh脚本

sh sys_path.sh 

['/data0/qinyk/test', '/data0/anaconda3/lib/python36.zip', '/data0/anaconda3/lib/python3.6', 

'/data0/anaconda3/lib/python3.6/lib-dynload', 

'/data0/anaconda3/lib/python3.6/site-packages', 

'/data0/anaconda3/lib/python3.6/site-packages/PyHive-0.3.0-py3.6.egg', 

'/data0/anaconda3/lib/python3.6/site-packages/xgboost-0.71-py3.6.egg']

定时任务crontab -e 并保存日志

* * * * * sh sys_path.sh >sys_path.log 2>&1

cat sys_path.log

['/data0/qinyk/test', '/usr/lib64/python26.zip', '/usr/lib64/python2.6', 

'/usr/lib64/python2.6/plat-linux2', '/usr/lib64/python2.6/lib-tk', '/usr/lib64/python2.6/lib-old', 

'/usr/lib64/python2.6/lib-dynload', '/usr/lib64/python2.6/site-packages', 

'/usr/lib64/python2.6/site-packages/gtk-2.0', '/usr/lib/python2.6/site-packages']