Bump mypy from 1.5.1 to 1.8.0 (#16901)

2024-10-01 01:36:05 -04:00 · 2024-03-13 17:05:57 +00:00 · 2024-03-13 17:05:57 +00:00 · e161103b46
commit e161103b46
parent f4e12ceb1f
12 changed files with 49 additions and 59 deletions
--- a/poetry.lock
+++ b/poetry.lock
@ -1472,38 +1472,38 @@ files = [

 [[package]]
 name = "mypy"
-version = "1.5.1"
+version = "1.8.0"
 description = "Optional static typing for Python"
 optional = false
 python-versions = ">=3.8"
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 ]

 [package.dependencies]
@ -1514,6 +1514,7 @@ typing-extensions = ">=4.1.0"
 [package.extras]
 dmypy = ["psutil (>=4.0)"]
 install-types = ["pip"]
+mypyc = ["setuptools (>=50)"]
 reports = ["lxml"]

 [[package]]
--- a/synapse/handlers/auth.py
+++ b/synapse/handlers/auth.py
@ -2185,7 +2185,7 @@ class PasswordAuthProvider:
                # result is always the right type, but as it is 3rd party code it might not be

                if not isinstance(result, tuple) or len(result) != 2:
-                    logger.warning(
+                    logger.warning(  # type: ignore[unreachable]
                        "Wrong type returned by module API callback %s: %s, expected"
                        " Optional[Tuple[str, Optional[Callable]]]",
                        callback,
@ -2248,7 +2248,7 @@ class PasswordAuthProvider:
                # result is always the right type, but as it is 3rd party code it might not be

                if not isinstance(result, tuple) or len(result) != 2:
-                    logger.warning(
+                    logger.warning(  # type: ignore[unreachable]
                        "Wrong type returned by module API callback %s: %s, expected"
                        " Optional[Tuple[str, Optional[Callable]]]",
                        callback,
--- a/synapse/handlers/sso.py
+++ b/synapse/handlers/sso.py
@ -150,7 +150,7 @@ class UserAttributes:
    display_name: Optional[str] = None
    picture: Optional[str] = None
    # mypy thinks these are incompatible for some reason.
-    emails: StrCollection = attr.Factory(list)  # type: ignore[assignment]
+    emails: StrCollection = attr.Factory(list)


@attr.s(slots=True, auto_attribs=True)
--- a/synapse/logging/context.py
+++ b/synapse/logging/context.py
@ -776,11 +776,7 @@ def run_in_background(
 ) -> "defer.Deferred[R]": ...


-def run_in_background(  # type: ignore[misc]
-    # The `type: ignore[misc]` above suppresses
-    # "Overloaded function implementation does not accept all possible arguments of signature 1"
-    # "Overloaded function implementation does not accept all possible arguments of signature 2"
-    # which seems like a bug in mypy.
+def run_in_background(
    f: Union[
        Callable[P, R],
        Callable[P, Awaitable[R]],
--- a/synapse/module_api/callbacks/spamchecker_callbacks.py
+++ b/synapse/module_api/callbacks/spamchecker_callbacks.py
@ -455,7 +455,7 @@ class SpamCheckerModuleApiCallbacks:
                    # mypy complains that we can't reach this code because of the
                    # return type in CHECK_EVENT_FOR_SPAM_CALLBACK, but we don't know
                    # for sure that the module actually returns it.
-                    logger.warning(
+                    logger.warning(  # type: ignore[unreachable]
                        "Module returned invalid value, rejecting message as spam"
                    )
                    res = "This message has been rejected as probable spam"
--- a/synapse/storage/database.py
+++ b/synapse/storage/database.py
@ -913,9 +913,9 @@ class DatabasePool:

            try:
                with opentracing.start_active_span(f"db.{desc}"):
-                    result = await self.runWithConnection(
+                    result: R = await self.runWithConnection(
                        # mypy seems to have an issue with this, maybe a bug?
-                        self.new_transaction,  # type: ignore[arg-type]
+                        self.new_transaction,
                        desc,
                        after_callbacks,
                        async_after_callbacks,
@ -934,7 +934,7 @@ class DatabasePool:
                    await async_callback(*async_args, **async_kwargs)
                for after_callback, after_args, after_kwargs in after_callbacks:
                    after_callback(*after_args, **after_kwargs)
-                return cast(R, result)
+                return result
            except Exception:
                for exception_callback, after_args, after_kwargs in exception_callbacks:
                    exception_callback(*after_args, **after_kwargs)
--- a/synapse/storage/databases/main/events_worker.py
+++ b/synapse/storage/databases/main/events_worker.py
@ -1876,7 +1876,7 @@ class EventsWorkerStore(SQLBaseStore):
            # Type safety: iterating over `txn` yields `Tuple`, i.e.
            # `Tuple[Any, ...]` of arbitrary length. Mypy detects assigning a
            # variadic tuple to a fixed length tuple and flags it up as an error.
-            for row in txn:  # type: ignore[assignment]
+            for row in txn:
                new_event_updates.append((row[0], row[1:]))

            limited = False
@ -1903,7 +1903,7 @@ class EventsWorkerStore(SQLBaseStore):
            # Type safety: iterating over `txn` yields `Tuple`, i.e.
            # `Tuple[Any, ...]` of arbitrary length. Mypy detects assigning a
            # variadic tuple to a fixed length tuple and flags it up as an error.
-            for row in txn:  # type: ignore[assignment]
+            for row in txn:
                new_event_updates.append((row[0], row[1:]))

            if len(new_event_updates) >= limit:
--- a/synapse/streams/events.py
+++ b/synapse/streams/events.py
@ -57,12 +57,13 @@ class _EventSourcesInner:
 class EventSources:
    def __init__(self, hs: "HomeServer"):
        self.sources = _EventSourcesInner(
-            # mypy previously warned that attribute.type is `Optional`, but we know it's
+            # attribute.type is `Optional`, but we know it's
            # never `None` here since all the attributes of `_EventSourcesInner` are
            # annotated.
-            # As of the stubs in attrs 22.1.0, `attr.fields()` now returns Any,
-            # so the call to `attribute.type` is not checked.
-            *(attribute.type(hs) for attribute in attr.fields(_EventSourcesInner))
+            *(
+                attribute.type(hs)  # type: ignore[misc]
+                for attribute in attr.fields(_EventSourcesInner)
+            )
        )
        self.store = hs.get_datastores().main
        self._instance_name = hs.get_instance_name()
--- a/synapse/util/async_helpers.py
+++ b/synapse/util/async_helpers.py
@ -284,15 +284,7 @@ async def yieldable_gather_results(
    try:
        return await make_deferred_yieldable(
            defer.gatherResults(
-                # type-ignore: mypy reports two errors:
-                # error: Argument 1 to "run_in_background" has incompatible type
-                #     "Callable[[T, **P], Awaitable[R]]"; expected
-                #     "Callable[[T, **P], Awaitable[R]]"  [arg-type]
-                # error: Argument 2 to "run_in_background" has incompatible type
-                #     "T"; expected "[T, **P.args]"  [arg-type]
-                # The former looks like a mypy bug, and the latter looks like a
-                # false positive.
-                [run_in_background(func, item, *args, **kwargs) for item in iter],  # type: ignore[arg-type]
+                [run_in_background(func, item, *args, **kwargs) for item in iter],
                consumeErrors=True,
            )
        )
@ -338,7 +330,7 @@ async def yieldable_gather_results_delaying_cancellation(
        return await make_deferred_yieldable(
            delay_cancellation(
                defer.gatherResults(
-                    [run_in_background(func, item, *args, **kwargs) for item in iter],  # type: ignore[arg-type]
+                    [run_in_background(func, item, *args, **kwargs) for item in iter],
                    consumeErrors=True,
                )
            )
--- a/synapse/util/caches/dictionary_cache.py
+++ b/synapse/util/caches/dictionary_cache.py
@ -229,7 +229,7 @@ class DictionaryCache(Generic[KT, DKT, DV]):
        for dict_key in missing:
            # We explicitly add each dict key to the cache, so that cache hit
            # rates and LRU times for each key can be tracked separately.
-            value = entry.get(dict_key, _Sentinel.sentinel)  # type: ignore[arg-type]
+            value = entry.get(dict_key, _Sentinel.sentinel)
            self.cache[(key, dict_key)] = _PerKeyValue(value)

            if value is not _Sentinel.sentinel:
--- a/synapse/util/caches/expiringcache.py
+++ b/synapse/util/caches/expiringcache.py
@ -142,7 +142,7 @@ class ExpiringCache(Generic[KT, VT]):
            return default

        if self.iterable:
-            self.metrics.inc_evictions(EvictionReason.invalidation, len(value.value))  # type: ignore[arg-type]
+            self.metrics.inc_evictions(EvictionReason.invalidation, len(value.value))
        else:
            self.metrics.inc_evictions(EvictionReason.invalidation)

--- a/tests/rest/client/test_filter.py
+++ b/tests/rest/client/test_filter.py
@ -72,7 +72,7 @@ class FilterTestCase(unittest.HomeserverTestCase):

    def test_add_filter_non_local_user(self) -> None:
        _is_mine = self.hs.is_mine
-        self.hs.is_mine = lambda target_user: False  # type: ignore[method-assign]
+        self.hs.is_mine = lambda target_user: False  # type: ignore[assignment]
        channel = self.make_request(
            "POST",
            "/_matrix/client/r0/user/%s/filter" % (self.user_id),