What does I mean in pylint? I haven't seen an error message that starts with I before.
Based on https://docs.pylint.org/en/1.6.0/tutorial.html, I is not included in the following list
* (C) convention, for programming standard violation
* (R) refactor, for bad code smell
* (W) warning, for python specific problems
* (E) error, for much probably bugs in the code
* (F) fatal, if an error occurred which prevented pylint from doing
It's related to a C++ extension.
Consider adding this module to extension-pkg-whitelist if you want to perform analysis based on run-time introspection of living objects. (c-extension-no-member)