From a3f124b821f0faf53af9e6c890870ec8cbb47ce5 Mon Sep 17 00:00:00 2001 From: Jonathan de Jong Date: Wed, 16 Sep 2020 21:15:55 +0200 Subject: Switch metaclass initialization to python 3-compatible syntax (#8326) --- synapse/storage/databases/main/account_data.py | 8 +++----- synapse/storage/databases/main/push_rule.py | 7 +++---- synapse/storage/databases/main/receipts.py | 8 +++----- synapse/storage/databases/main/stream.py | 4 +--- 4 files changed, 10 insertions(+), 17 deletions(-) (limited to 'synapse/storage/databases') diff --git a/synapse/storage/databases/main/account_data.py b/synapse/storage/databases/main/account_data.py index 4436b1a83d..5f1a2b9aa6 100644 --- a/synapse/storage/databases/main/account_data.py +++ b/synapse/storage/databases/main/account_data.py @@ -29,15 +29,13 @@ from synapse.util.caches.stream_change_cache import StreamChangeCache logger = logging.getLogger(__name__) -class AccountDataWorkerStore(SQLBaseStore): +# The ABCMeta metaclass ensures that it cannot be instantiated without +# the abstract methods being implemented. +class AccountDataWorkerStore(SQLBaseStore, metaclass=abc.ABCMeta): """This is an abstract base class where subclasses must implement `get_max_account_data_stream_id` which can be called in the initializer. """ - # This ABCMeta metaclass ensures that we cannot be instantiated without - # the abstract methods being implemented. - __metaclass__ = abc.ABCMeta - def __init__(self, database: DatabasePool, db_conn, hs): account_max = self.get_max_account_data_stream_id() self._account_data_stream_cache = StreamChangeCache( diff --git a/synapse/storage/databases/main/push_rule.py b/synapse/storage/databases/main/push_rule.py index 9790a31998..b7a8d34ce1 100644 --- a/synapse/storage/databases/main/push_rule.py +++ b/synapse/storage/databases/main/push_rule.py @@ -61,6 +61,8 @@ def _load_rules(rawrules, enabled_map, use_new_defaults=False): return rules +# The ABCMeta metaclass ensures that it cannot be instantiated without +# the abstract methods being implemented. class PushRulesWorkerStore( ApplicationServiceWorkerStore, ReceiptsWorkerStore, @@ -68,15 +70,12 @@ class PushRulesWorkerStore( RoomMemberWorkerStore, EventsWorkerStore, SQLBaseStore, + metaclass=abc.ABCMeta, ): """This is an abstract base class where subclasses must implement `get_max_push_rules_stream_id` which can be called in the initializer. """ - # This ABCMeta metaclass ensures that we cannot be instantiated without - # the abstract methods being implemented. - __metaclass__ = abc.ABCMeta - def __init__(self, database: DatabasePool, db_conn, hs): super(PushRulesWorkerStore, self).__init__(database, db_conn, hs) diff --git a/synapse/storage/databases/main/receipts.py b/synapse/storage/databases/main/receipts.py index 4a0d5a320e..6568bddd81 100644 --- a/synapse/storage/databases/main/receipts.py +++ b/synapse/storage/databases/main/receipts.py @@ -31,15 +31,13 @@ from synapse.util.caches.stream_change_cache import StreamChangeCache logger = logging.getLogger(__name__) -class ReceiptsWorkerStore(SQLBaseStore): +# The ABCMeta metaclass ensures that it cannot be instantiated without +# the abstract methods being implemented. +class ReceiptsWorkerStore(SQLBaseStore, metaclass=abc.ABCMeta): """This is an abstract base class where subclasses must implement `get_max_receipt_stream_id` which can be called in the initializer. """ - # This ABCMeta metaclass ensures that we cannot be instantiated without - # the abstract methods being implemented. - __metaclass__ = abc.ABCMeta - def __init__(self, database: DatabasePool, db_conn, hs): super(ReceiptsWorkerStore, self).__init__(database, db_conn, hs) diff --git a/synapse/storage/databases/main/stream.py b/synapse/storage/databases/main/stream.py index 2e95518752..7dbe11513b 100644 --- a/synapse/storage/databases/main/stream.py +++ b/synapse/storage/databases/main/stream.py @@ -259,14 +259,12 @@ def filter_to_clause(event_filter: Optional[Filter]) -> Tuple[str, List[str]]: return " AND ".join(clauses), args -class StreamWorkerStore(EventsWorkerStore, SQLBaseStore): +class StreamWorkerStore(EventsWorkerStore, SQLBaseStore, metaclass=abc.ABCMeta): """This is an abstract base class where subclasses must implement `get_room_max_stream_ordering` and `get_room_min_stream_ordering` which can be called in the initializer. """ - __metaclass__ = abc.ABCMeta - def __init__(self, database: DatabasePool, db_conn, hs: "HomeServer"): super(StreamWorkerStore, self).__init__(database, db_conn, hs) -- cgit 1.4.1