[red-knot] Unresolved imports lint rule #11164
Merged
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Summary
This PR is based on #11157 and #11148
It implements a very basic check for detecting unknown imports. It doesn't do anything fancy but it demonstrates the cross-module resolution infrastructure.
The
lint_semantic
isn't yet correctly retriggered when a dependency changes. That's something we have to follow up with.Test Plan
I imported the
test
function frommatch.py
. No lint error. I imported the non existingtest2
function frommatch.py
and it shows a diagnostic.