Method transaction

psycopg/psycopg/connection.py:345–363

Start a context block with a new transaction or nested transaction. :param savepoint_name: Name of the savepoint used to manage a nested transaction. If `!None`, one will be chosen automatically. :param force_rollback: Roll back the transaction at the end of the

(
        self, savepoint_name: str | None = None, force_rollback: bool = False
    )

    @contextmanager
    def transaction(
        self, savepoint_name: str | None = None, force_rollback: bool = False
    ) -> Iterator[Transaction]:
        class="st">"""
        Start a context block with a new transaction or nested transaction.

        :param savepoint_name: Name of the savepoint used to manage a nested
            transaction. If `!None`, one will be chosen automatically.
        :param force_rollback: Roll back the transaction at the end of the
            block even if there were no error (e.g. to try a no-op process).
        :rtype: Transaction
        class="st">"""
        tx = Transaction(self, savepoint_name, force_rollback)
        if self._pipeline:
            with self.pipeline(), tx, self.pipeline():
                yield tx
        else:
            with tx:
                yield tx

    def notifies(
        self, *, timeout: float | None = None, stop_after: int | None = None