The following changes have been checked into trunk:

logging.handlers: bare except clause removed from SMTPHandler.emit. Now, only ImportError is trapped.

logging.handlers: bare except clause removed from SocketHandler.createSocket. Now, only socket.error is trapped.

logging: bare except clause removed from LogRecord.__init__.  Now, only ValueError, TypeError and AttributeError are trapped.

I'm marking this as Pending; please submit a change if you think these changes are insufficient. With the default setting of raiseExceptions, all exceptions caused by programmer error should be re-thrown by logging.