diff options
Diffstat (limited to 'Doc/whatsnew/2.6.rst')
| -rw-r--r-- | Doc/whatsnew/2.6.rst | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/Doc/whatsnew/2.6.rst b/Doc/whatsnew/2.6.rst index c63cc32..f21ff72 100644 --- a/Doc/whatsnew/2.6.rst +++ b/Doc/whatsnew/2.6.rst @@ -202,7 +202,7 @@ A high-level explanation of the context management protocol is: methods. * The context manager's :meth:`__enter__` method is called. The value returned - is assigned to *VAR*. If no ``'as VAR'`` clause is present, the value is simply + is assigned to *VAR*. If no ``as VAR`` clause is present, the value is simply discarded. * The code in *BLOCK* is executed. @@ -242,11 +242,11 @@ rolled back if there's an exception. Here's the basic interface for class DatabaseConnection: # Database interface - def cursor (self): + def cursor(self): "Returns a cursor object and starts a new transaction" - def commit (self): + def commit(self): "Commits current transaction" - def rollback (self): + def rollback(self): "Rolls back current transaction" The :meth:`__enter__` method is pretty easy, having only to start a new @@ -256,7 +256,7 @@ their ':keyword:`with`' statement to bind the cursor to a variable name. :: class DatabaseConnection: ... - def __enter__ (self): + def __enter__(self): # Code to start a new transaction cursor = self.cursor() return cursor @@ -273,7 +273,7 @@ add a :keyword:`return` statement at the marked location. :: class DatabaseConnection: ... - def __exit__ (self, type, value, tb): + def __exit__(self, type, value, tb): if tb is None: # No exception, so commit self.commit() @@ -306,7 +306,7 @@ decorator as:: from contextlib import contextmanager @contextmanager - def db_transaction (connection): + def db_transaction(connection): cursor = connection.cursor() try: yield cursor |