根據官網指導安裝docker-compose，結果測試docker-compose --version報錯如下，根據提示可知是enum的問題。因爲電腦同時安裝了具有相同命名空間的enum和enum34，所以導致調用衝突。
root@k8s-master:~$ docker-compose --version
Traceback (most recent call last):
File "/usr/bin/docker-compose", line 9, in <module>
load_entry_point('docker-compose==1.8.0', 'console_scripts', 'docker-compose')()
File "/usr/local/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 480, in load_entry_point
return get_distribution(dist).load_entry_point(group, name)
File "/usr/local/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2691, in load_entry_point
return ep.load()
File "/usr/local/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2322, in load
return self.resolve()
File "/usr/local/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2328, in resolve
module = __import__(self.module_name, fromlist=['__name__'], level=0)
File "/usr/lib/python2.7/dist-packages/compose/cli/main.py", line 17, in <module>
from ..bundle import get_image_digests
File "/usr/lib/python2.7/dist-packages/compose/bundle.py", line 14, in <module>
from .service import format_environment
File "/usr/lib/python2.7/dist-packages/compose/service.py", line 87, in <module>
@enum.unique
AttributeError: 'module' object has no attribute 'unique'
解決方案：
pip uninstall enum enum34
pip install enum34
docker-compose --version
