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Max Hsu f7a8940e67 fix(resolution): resolve Python module members through an aliased from-import (#1626)
resolvePythonModuleMember rebuilt the submodule's dotted path by joining the
import source with the LOCAL name. Under 'from pkg import mod as alias' that
produces 'pkg.alias' — a module that does not exist — so the file lookup found
nothing and the call fell through to unresolved_refs with status='failed'.
codegraph_callers then reported the target as having fewer callers than it
does, which is the same wrong 'is this dead code?' answer #578 produced for
the unaliased form.

Join with the exported name instead. For an unaliased import the two names are
identical, so nothing changes there; '*' (the namespace form) keeps using the
local name, which is what it already bound to.

Scope note: the issue also reports 'import top as alias' failing. That form is
a namespace import and binds at source, so it resolves on current main — a
probe against the reverted resolver confirms it already produces its call edge.
The regression test pins both halves so the working one cannot silently break.

Co-Authored-By: Claude <noreply@anthropic.com>
2026-09-08 22:43:04 +08:00
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