Connection using Python API

RAA

Hi all,

I have a working connection with my Motorcortex using 192.168.2.100/cockpit.
I want to connect using a Python connection. I used this code:
`# import the motorcortex library
import motorcortex

Create a parameter tree object

parameter_tree = motorcortex.ParameterTree()

Open request and subscribe connection

try:
req, sub = motorcortex.connect("wss://192.168.2.100:5568:5567", motorcortex.MessageTypes(), parameter_tree,
certificate="mcx.cert.crt", timeout_ms=1000,
login="admin", password="vectioneer")
tree = parameter_tree.getParameterTree()
print(f"Parameters: {tree}")

except RuntimeError as err:
print(err)

` however it does not connect. What can I do?

Thanks in advance!
Robert

Philippe

Can you post the output of the console when you run it, so we can have a look at the error message.

A common mistake is that you do not have the certificate in the same folder as your python script.

RAA

I have my certificate in the same folder.

error message
Traceback (most recent call last):
File "c:/Users/RA/Documents/MotorCortex/Connect.py", line 9, in <module>
login="admin", password="vectineer")
File "C:\Users\RA\AppData\Local\Programs\Python\Python37\lib\site-packages\motorcortex__init__.py", line 52, in connect
if not req.connect(makeUrl(req_address, req_port), **kwargs_copy).get():
File "C:\Users\RA\AppData\Local\Programs\Python\Python37\lib\site-packages\motorcortex\request.py", line 67, in connect
tls_config = TLSConfig(TLSConfig.MODE_CLIENT, ca_files=certificate)
File "C:\Users\RA\AppData\Local\Programs\Python\Python37\lib\site-packages\pynng\tls.py", line 86, in init
self.add_ca_file(f)
File "C:\Users\RA\AppData\Local\Programs\Python\Python37\lib\site-packages\pynng\tls.py", line 140, in add_ca_file
pynng.check_err(err)
File "C:\Users\RA\AppData\Local\Programs\Python\Python37\lib\site-packages\pynng\exceptions.py", line 202, in check_err
raise exc(string, err)
pynng.exceptions.NoEntry: Entry not found