Python 3.9 Issue

[royord]

Running

from pppd import PPPConnection

ppp = PPPConnection(call='webcam_num0')
print(ppp.connected())

Using Python 3.9 gives the following error.

Traceback (most recent call last):
  File "/home/pi/ppp_py.py", line 3, in <module>
    ppp = PPPConnection(call='webcam_num0')
  File "/usr/local/lib/python3.9/dist-packages/pppd.py", line 82, in __init__
    self.output += self.proc.stdout.read()
TypeError: can't concat NoneType to bytes

[COUR4G3]

Oh, I just love non-blocking IO and Python ;_;

Seems something changed in 3.9 so will have to check if the result of None and not concatenate. It should be a quick patch, will see if I get some time to patch it and do a new release on PyPi.

[royord]

Let me know if there's anything that I can do to help, I may also add some additional items to the readme based on python3 when I am able to use the library. My project that I'm working on will greatly benefit from ability to use this library. Thanks

[COUR4G3]

I have pushed a fix to master, I don't have a working PPPD setup to test it on, so if you'd like to take a look at it and I can do the release the PyPi. And if you have any contributions to the documentation or anything you are more than welcome to make a PR.

[royord]

I cloned the repo and used the install script and still get the same error.

To be clear I can pon webcam_num0 without issue.

[wbarnha]

I also encountered this issue and it would be appreciated if a release to PyPi could be made. I'm not sure how @royord is still encountering this issue, but the fix above should solve my issue.