Hey guys i have this problem:
I have to install OPCUA package for python. I have already installed opcua with pip install opcua. But I have this problem:
In my Python code: from opcua import Client,ua
i get this: Traceback (most recent call last): File "mytry.py", line 1, in from opcua import Client,ua ModuleNotFoundError: No module named 'opcua'
i tried to do this in the cmd and i thought i have to install crypthography so i wrote the command: pip install cryptography
But then i get this message: Command "python setup.py egg_info" failed with error code 1 in C:\Users\Mikail\AppData\Local\Temp\pip-install-h1su9k_x\cffi\
Can anyone help me? I am new in Python and OPCUA
Note: i have a windows 10 OS
Looks like you didn't install opcua correctly.
Try to use pip list to check is it installed.
You can get examples from https://github.com/FreeOpcUa/python-opcua, and go to examples folder.
$ python server-minimal.py
Open another terminal
$ python client-minimal.py
Objects node is: Node(TwoByteNodeId(i=84))
Children of root are: [Node(NumericNodeId(i=85)), Node(NumericNodeId(i=86)),
Node(NumericNodeId(i=87))]
myvar is: Node(NumericNodeId(ns=2;i=2))
myobj is: Node(NumericNodeId(ns=2;i=1))
crypthography is just for security, it's not necessary to install.
If crypthography is not installed, you will get a message,
cryptography is not installed, use of crypto disabled