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ModuleNotFoundError: No module named 'pysnmp.entity.rfc3413.oneliner' #3

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ModuleNotFoundError: No module named 'pysnmp.entity.rfc3413.oneliner'#3

Description

@dixonbegay
dixonbegay
opened on Jul 25, 2025

Python version: 3.11.2

Error mesage:

Traceback (most recent call last):
  File "/home/dixon/workspace/printer-monitoring/Printer-Monitoring.py", line 30, in <module>
    from pysnmp.entity.rfc3413.oneliner import cmdgen
ModuleNotFoundError: No module named 'pysnmp.entity.rfc3413.oneliner'

I'm attempting to run in a virtual environment using venv. After activating the virtual environment, I ran pip install -r requirements.txt and I can see pysnmp installs, but the module is still not resolving. I viewed Printer-Monitoring.py in VSCode, and I see that the module isn't resolving.

Screenshot of pysnmp installing:

Image

Screenshot of the error:

Image

Activity

  1. dixonbegay commented on Jul 25, 2025

    @dixonbegay
    dixonbegay
    on Jul 25, 2025
    Author

    I resolved this by installing an additional library called pysnmplib according to answers in this stackoverflow post.

    https://stackoverflow.com/questions/19984512/python-doesnt-see-installed-module-entity-rfc3413-oneliner-due-to-name-conflict

    This resolved the issue for me and I was able to run the script.

    I watched the local modules while installing the pysnmplib module and it seems it adds the oneliner module. When only installing pysnmp, it doesn't install the oneliner module. So it seems pysnmp and pysnmplib are both required.

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