问python3.6.5 程序错误,详细错误见描述？

centos 7.2

python版本3.6.5

错误显示:

Traceback (most recent call last):

File "/bin/coscmd", line 9, in <module>

load_entry_point('coscmd==1.8.4.4', 'console_scripts', 'coscmd')()

File "/usr/local/python3/lib/python3.6/site-packages/setuptools-19.6-py3.6.egg/pkg_resources/__init__.py", line 550, in load_entry_point

File "/usr/local/python3/lib/python3.6/site-packages/setuptools-19.6-py3.6.egg/pkg_resources/__init__.py", line 2710, in load_entry_point

File "/usr/local/python3/lib/python3.6/site-packages/setuptools-19.6-py3.6.egg/pkg_resources/__init__.py", line 2370, in load

File "/usr/local/python3/lib/python3.6/site-packages/setuptools-19.6-py3.6.egg/pkg_resources/__init__.py", line 2376, in resolve

File "/usr/local/python3/lib/python3.6/site-packages/coscmd/cos_cmd.py", line 2, in <module>

from cos_client import CosConfig, CosS3Client

ModuleNotFoundError: No module named 'cos_client'