logging remove / inspect / modify handlers configured by fileConfig()

Question

How can I remove / inspect / modify handlers configured for my loggers using the fileConfig() function?

For removing there is Logger.removeHandler(hdlr) method, but how

Answer 1

This code will print all the loggers and for each logger its handlers

for k,v in  logging.Logger.manager.loggerDict.items()  :
        print('+ [%s] {%s} ' % (str.ljust( k, 20)  , str(v.__class__)[8:-2]) ) 
        if not isinstance(v, logging.PlaceHolder):
            for h in v.handlers:
                print('     +++',str(h.__class__)[8:-2] )

This will print out the loggers and handlers in your system including their states and levels.

This will help you debug your logging issues

output:
+ [root                ] {logging.RootLogger} {DEBUG} 
-------------------------
   -name=root
   -handlers=[, ]
   -filters=[]
   -propagate=True
   -level=10
   -disabled=False
   -parent=None
     +++logging.FileHandler {NOTSET}
   -stream=<_io.TextIOWrapper name='/dev/logs/myapp.log' mode='w' encoding='UTF-8'>
   -mode=w
   -filters=[]
   -encoding=None
   -baseFilename=/home/dev/logs/myapp.log
   -level=0
   -lock=
   -delay=False
   -_name=None
   -formatter=
     +++logging.StreamHandler {DEBUG}
   -lock=
   -filters=[]
   -stream=
   -level=10
   -_name=None
   -formatter=
+ [PathFinder          ] {logging.Logger} {NOTSET} 
-------------------------
   -name=PathFinder
   -handlers=[]
   -filters=[]
   -manager=
   -propagate=True
   -level=0
   -disabled=False
   -parent=