diff --git a/.flake8 b/.flake8 index acb118c86..4c6a4d584 100644 --- a/.flake8 +++ b/.flake8 @@ -8,4 +8,11 @@ # E203: whitespace before ':' (which is contrary to pep8?) # E731: do not assign a lambda expression, use a def # E501: Line too long (black enforces this for us) -ignore=W503,W504,E203,E731,E501 +# +# flake8-bugbear runs extra checks. Its error codes are described at +# https://github.com/PyCQA/flake8-bugbear#list-of-warnings +# B019: Use of functools.lru_cache or functools.cache on methods can lead to memory leaks +# B023: Functions defined inside a loop must not use variables redefined in the loop +# B024: Abstract base class with no abstract method. + +ignore=W503,W504,E203,E731,E501,B019,B023,B024 diff --git a/changelog.d/14042.misc b/changelog.d/14042.misc new file mode 100644 index 000000000..868d55e76 --- /dev/null +++ b/changelog.d/14042.misc @@ -0,0 +1 @@ +Bump flake8-bugbear from 21.3.2 to 22.9.23. diff --git a/poetry.lock b/poetry.lock index ed0b59fbe..0a2f9ab69 100644 --- a/poetry.lock +++ b/poetry.lock @@ -260,7 +260,7 @@ pyflakes = ">=2.4.0,<2.5.0" [[package]] name = "flake8-bugbear" -version = "21.3.2" +version = "22.9.23" description = "A plugin for flake8 finding likely bugs and design problems in your program. Contains warnings that don't belong in pyflakes and pycodestyle." category = "dev" optional = false @@ -271,7 +271,7 @@ attrs = ">=19.2.0" flake8 = ">=3.0.0" [package.extras] -dev = ["black", "coverage", "hypothesis", "hypothesmith"] +dev = ["coverage", "hypothesis", "hypothesmith (>=0.2)", "pre-commit"] [[package]] name = "flake8-comprehensions" @@ -1826,8 +1826,8 @@ flake8 = [ {file = "flake8-4.0.1.tar.gz", hash = "sha256:806e034dda44114815e23c16ef92f95c91e4c71100ff52813adf7132a6ad870d"}, ] flake8-bugbear = [ - {file = "flake8-bugbear-21.3.2.tar.gz", hash = "sha256:cadce434ceef96463b45a7c3000f23527c04ea4b531d16c7ac8886051f516ca0"}, - {file = "flake8_bugbear-21.3.2-py36.py37.py38-none-any.whl", hash = "sha256:5d6ccb0c0676c738a6e066b4d50589c408dcc1c5bf1d73b464b18b73cd6c05c2"}, + {file = "flake8-bugbear-22.9.23.tar.gz", hash = "sha256:17b9623325e6e0dcdcc80ed9e4aa811287fcc81d7e03313b8736ea5733759937"}, + {file = "flake8_bugbear-22.9.23-py3-none-any.whl", hash = "sha256:cd2779b2b7ada212d7a322814a1e5651f1868ab0d3f24cc9da66169ab8fda474"}, ] flake8-comprehensions = [ {file = "flake8-comprehensions-3.8.0.tar.gz", hash = "sha256:8e108707637b1d13734f38e03435984f6b7854fa6b5a4e34f93e69534be8e521"}, diff --git a/synapse/storage/databases/main/roommember.py b/synapse/storage/databases/main/roommember.py index 2ed6ad754..32e1e983a 100644 --- a/synapse/storage/databases/main/roommember.py +++ b/synapse/storage/databases/main/roommember.py @@ -707,8 +707,8 @@ class RoomMemberWorkerStore(EventsWorkerStore): # 250 users is pretty arbitrary but the data can be quite large if users # are in many rooms. - for user_ids in batch_iter(user_ids, 250): - all_user_rooms.update(await self._get_rooms_for_users(user_ids)) + for batch_user_ids in batch_iter(user_ids, 250): + all_user_rooms.update(await self._get_rooms_for_users(batch_user_ids)) return all_user_rooms diff --git a/synapse/util/caches/deferred_cache.py b/synapse/util/caches/deferred_cache.py index 6425f851e..bcb1cba36 100644 --- a/synapse/util/caches/deferred_cache.py +++ b/synapse/util/caches/deferred_cache.py @@ -395,8 +395,8 @@ class DeferredCache(Generic[KT, VT]): # _pending_deferred_cache.pop should either return a CacheEntry, or, in the # case of a TreeCache, a dict of keys to cache entries. Either way calling # iterate_tree_cache_entry on it will do the right thing. - for entry in iterate_tree_cache_entry(entry): - for cb in entry.get_invalidation_callbacks(key): + for iter_entry in iterate_tree_cache_entry(entry): + for cb in iter_entry.get_invalidation_callbacks(key): cb() def invalidate_all(self) -> None: diff --git a/synapse/util/caches/descriptors.py b/synapse/util/caches/descriptors.py index 039196646..b3c748ef4 100644 --- a/synapse/util/caches/descriptors.py +++ b/synapse/util/caches/descriptors.py @@ -432,7 +432,7 @@ class DeferredCacheListDescriptor(_CacheDescriptorBase): num_args = cached_method.num_args if num_args != self.num_args: - raise Exception( + raise TypeError( "Number of args (%s) does not match underlying cache_method_name=%s (%s)." % (self.num_args, self.cached_method_name, num_args) ) diff --git a/tests/federation/transport/test_client.py b/tests/federation/transport/test_client.py index 0926e0583..dd4d1b56d 100644 --- a/tests/federation/transport/test_client.py +++ b/tests/federation/transport/test_client.py @@ -17,6 +17,7 @@ from unittest.mock import Mock from synapse.api.room_versions import RoomVersions from synapse.federation.transport.client import SendJoinParser +from synapse.util import ExceptionBundle from tests.unittest import TestCase @@ -121,10 +122,8 @@ class SendJoinParserTestCase(TestCase): # Send half of the data to the parser parser.write(serialisation[: len(serialisation) // 2]) - # Close the parser. There should be _some_ kind of exception, but it need not - # be that RuntimeError directly. E.g. we might want to raise a wrapper - # encompassing multiple errors from multiple coroutines. - with self.assertRaises(Exception): + # Close the parser. There should be _some_ kind of exception. + with self.assertRaises(ExceptionBundle): parser.finish() # In any case, we should have tried to close both coros. diff --git a/tests/util/caches/test_descriptors.py b/tests/util/caches/test_descriptors.py index 90861fe52..78fd7b696 100644 --- a/tests/util/caches/test_descriptors.py +++ b/tests/util/caches/test_descriptors.py @@ -1037,5 +1037,5 @@ class CachedListDescriptorTestCase(unittest.TestCase): obj = Cls() # Make sure this raises an error about the arg mismatch - with self.assertRaises(Exception): + with self.assertRaises(TypeError): obj.list_fn([("foo", "bar")])