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Update import map when new modules added #20271

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Merged
merged 1 commit into from
Nov 20, 2025
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Merged

Update import map when new modules added #20271

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2 changes: 2 additions & 0 deletions mypy/server/update.py
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Original file line number Diff line number Diff line change
Expand Up @@ -631,6 +631,8 @@ def restore(ids: list[str]) -> None:

# Find any other modules brought in by imports.
changed_modules = [(st.id, st.xpath) for st in new_modules]
for m in new_modules:
manager.import_map[m.id] = set(m.dependencies + m.suppressed)

# If there are multiple modules to process, only process one of them and return
# the remaining ones to the caller.
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16 changes: 16 additions & 0 deletions test-data/unit/fine-grained-modules.test
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Expand Up @@ -2244,3 +2244,19 @@ undefined
a.py:1: error: Cannot find implementation or library stub for module named "foobar"
a.py:1: note: See https://mypy.readthedocs.io/en/stable/running_mypy.html#missing-imports
==

[case testDaemonImportMapRefresh]
# cmd: mypy main.py
[file main.py]
[file main.py.2]
import a.b
reveal_type(a.b.foo())
[file a/__init__.pyi]
[file a/b.pyi]
import a.c
def foo() -> a.c.C: ...
[file a/c.pyi]
class C: ...
[out]
==
main.py:2: note: Revealed type is "a.c.C"