delta/python-packages/sqlalchemy.git/lib/sqlalchemy/engine/strategies.py, branch pr/153

- The engine-level error handling and wrapping routines will now

2014-12-05T17:12:44+00:00

take effect in all engine connection use cases, including
when user-custom connect routines are used via the
:paramref:`.create_engine.creator` parameter, as well as when
the :class:`.Connection` encounters a connection error on
revalidation.
fixes #3266

- adjustment for ref #3200 as we need an immutabledict() here so

2014-10-07T16:43:27+00:00

that union() can be called, in the case of a dialect that uses
execution options inside of initialize() (e.g. oursql)

- The execution options passed to an :class:`.Engine` either via

2014-10-06T22:23:42+00:00

:paramref:`.create_engine.execution_options` or
:meth:`.Engine.update_execution_options` are not passed to the
special :class:`.Connection` used to initialize the dialect
within the "first connect" event; dialects will usually
perform their own queries in this phase, and none of the
current available  options should be applied here.  In
particular, the "autocommit" option was causing an attempt to
autocommit within this initial connect which would fail with
an AttributeError due to the non-standard state of the
:class:`.Connection`.
fixes #3200

PEP8 style fixes

2014-07-14T00:10:55+00:00

- break up the copyright comment as part of a pass

2014-07-09T22:26:55+00:00

to get all flake8 passing

- vastly improve the "safe close cursor" tests in test_reconnect

2014-05-30T20:24:38+00:00

- Fixed bug which would occur if a DBAPI exception
occurs when the engine first connects and does its initial checks,
and the exception is not a disconnect exception, yet the cursor
raises an error when we try to close it.  In this case the real
exception would be quashed as we tried to log the cursor close
exception via the connection pool and failed, as we were trying
to access the pool's logger in a way that is inappropriate
in this very specific scenario. fixes #3063

- Added a new keyword argument ``once=True`` to :func:`.event.listen`

2014-03-11T16:27:10+00:00

and :func:`.event.listens_for`.  This is a convenience feature which
will wrap the given listener such that it is only invoked once.

- happy new year

2014-01-05T21:57:05+00:00

- The :func:`.engine_from_config` function has been improved so that

2013-12-07T23:38:15+00:00

we will be able to parse dialect-specific arguments from string
configuration dictionaries.  Dialect classes can now provide their
own list of parameter types and string-conversion routines.
The feature is not yet used by the built-in dialects, however.
[ticket:2875]

- A DBAPI that raises an error on ``connect()`` which is not a subclass

2013-12-07T22:20:05+00:00

of dbapi.Error (such as ``TypeError``, ``NotImplementedError``, etc.)
will propagate the exception unchanged.  Previously,
the error handling specific to the ``connect()`` routine would both
inappropriately run the exception through the dialect's
:meth:`.Dialect.is_disconnect` routine as well as wrap it in
a :class:`sqlalchemy.exc.DBAPIError`.  It is now propagated unchanged
in the same way as occurs within the execute process. [ticket:2881]
- add tests for this in test_parseconnect, but also add tests in test_execute
to ensure the execute() behavior as well