Don’t panic when your PySMI application does not work as expected. This page provides some tips and tricks to troubleshoot your PySMI application.

PySMI Built-in Debugging#

If you find your PySMI application behaving unexpectedly, try to enable a /more or less verbose/ built-in PySMI debugging by adding the following snippet of code at the beginning of your application:

from pysmi import debug

# use specific flags for debugging
debug.setLogger(debug.Debug('lexer', 'parser', 'compiler'))

# use 'all' for full debugging

Then run your app and watch stderr. The Debug initializer enables debugging for a particular PySMI subsystem, ‘all’ enables full debugging. More specific flags are:

  • searcher

  • reader

  • lexer

  • parser

  • grammar

  • codegen

  • writer

  • compiler

  • borrower

You might refer to PySMI source code to see in which components these flags are used.

Common Utilities#

While built-in debugging is a good start, you might want to use some other tools and utilities to troubleshoot your PySMI application so as to gain more insights.

For example, there are many SMI compilers available on the market. You might compile your MIBs with another compiler and compare the results. If the other compiler reports the same errors, then the problem is likely in your MIBs.

Commercial Support#

If you are still stuck, you might want to consider hiring a professional to help you out.

LeXtudio Inc. does not only support PySNMP/PySMI ecosystem by maintaining the GitHub repositories but also offers commercial support such as consulting services. You can easily open a support ticket via its homepage.