Traceback (most recent call last):


 "e:/Projects/OPCUA/opcua.py", line 1, in <module>

from opcua import Client


 "e:\Projects\OPCUA\opcua.py", line 1, in <module>

from opcua import Client
ImportError: cannot import name 'Client'

Traceback (most recent call last):


 "/data/software/anaconda2/bin/conda", line 13, in <module>

sys.exit(main())


 "/data/software/anaconda2/lib/python2.7/site-packages/conda/cli/main.py", line 116, in main

from ..exceptions import conda_exception_handler


 "/data/software/anaconda2/lib/python2.7/site-packages/conda/exceptions.py", line 24, in <module>

from .common.io import dashlist, timeout


 "/data/software/anaconda2/lib/python2.7/site-packages/conda/common/io.py", line 7, in <module>

from concurrent.futures import ThreadPoolExecutor, _base, as_completed
ImportError: No module named concurrent.futures
