[issue29143] Logger should ignore propagate property for disabled handlers.

[Mario Corchero]

Mario Corchero <mariocj89 at gmail.com> added the comment:

Note that "handlers" cannot be disabled. This applies only to loggers.

Also, the following code shows that disabling the logger does indeed prevents all logs in emitted by that logger from appearing:

```
import logging

parent_handler = logging.StreamHandler()
child_handler = logging.StreamHandler()

parent_logger = logging.getLogger('parent')
child_logger = logging.getLogger('parent.child')

parent_logger.addHandler(parent_handler)
child_logger.addHandler(child_handler)

child_logger.disabled = True

child_logger.error("wops")
```

Trying to guess what happened, it might be that there was a child of the disabled logged and you saw the log trace expecting it was the child, example:

```
import logging

parent_handler = logging.StreamHandler()
child_handler = logging.StreamHandler()

parent_logger = logging.getLogger('parent')
child_logger = logging.getLogger('parent.child')
grandchild_logger = logging.getLogger('parent.child.grandchild')

parent_logger.addHandler(parent_handler)
child_logger.addHandler(child_handler)

child_logger.disabled = True

grandchild_logger.error("wops")
```

Note that disable does not affect how handlers across loggers are called. It only disables the logger and therefore prevents from emitting logs that are emitted directly through the disabled logger.

Might that be the case? Are you OK with closing this issue if so?

----------
nosy: +mariocj89

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue29143>
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