Fix conpot docker image errors

[sarkoziadam]

Hello,

Today I tried to create my own docker container, but the conpot containers did not work, the container kept restarting with a similar error:

Traceback (most recent call last):
  File "/usr/bin/conpot", line 37, in <module>
    from conpot import protocols
  File "/usr/lib/python3.11/site-packages/conpot/protocols/__init__.py", line 28, in <module>
    from .snmp.snmp_server import SNMPServer
  File "/usr/lib/python3.11/site-packages/conpot/protocols/snmp/snmp_server.py", line 25, in <module>
    from conpot.protocols.snmp.command_responder import CommandResponder
  File "/usr/lib/python3.11/site-packages/conpot/protocols/snmp/command_responder.py", 6th line, in <module>
    from pysmi.reader import FileReader, FtpReader

The error is caused by the new pysmi release because the FtpReader function has been removed. (lextudio/pysnmp@7df1e46)
(I also tried pysmi==1.2.1, but that didn't work either.)

I have updated the conpot/dist/requirements.txt file, so it works again.

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[t3chn0m4g3]

Thanks for taking the time to submit the PR.
Build runs fine here with git checkout 26c67d11b08a855a28e87abd186d959741f46c7f.
Have you tried a different commit from the conpot repo?

[sarkoziadam]

No, I didn't try different commit from conpot, I just changed the python dependency.

[t3chn0m4g3]

@sarkoziadam I did not have to change the deps, worked perfectly fine. Maybe it was just a glitch?

Thanks for the PR again, but right now, I do not think the change is necessary.

[t3chn0m4g3]

Seems my end was glitching, I could reproduce it as described.

Thanks again for taking the time to PR this!