what's the relationship between "log_config" in uvicorn.run('main:app', host="127.0.0.1", port=8051, log_config="log.ini") and logging.getLogger(__name__)?

[sanwei111]

hello,sir. i wtite a log.ini,pass it for the para of log_config in uvicorn.run('main:app', host="127.0.0.1", port=8051, log_config="log.ini").

besides, i initializes class of logger by：self._logger = logging.getLogger(name) in some file.

i found that the log generated by self._logger can be found in the log file defined by "log_config".

so,question is:

1. why?
2. how can i output some dynamic log to the log file formally?