Python Logging - How do I disable a package's Logging?

logging.basicConfig adds a Handler. Then you go and add another. Both directed to the same file.

logging.basicConfig(filename=f'{CFG.get("log_path")}',
                    filemode='w',
                    level=logging.DEBUG,
                    format='%(asctime)s - %(name)s - %(levelname)s - %(message)s'
                    )
rotating = RotatingFileHandler(f'{CFG.get("log_path")}', maxBytes=1024*1024*500, backupCount=4)
logging.getLogger('').addHandler(rotating)

So to see how to fix this it is best to look at what logging.basicConfig actually does:

def basicConfig(**kwargs):

    _acquireLock()
    try:
        if len(root.handlers) == 0:
            filename = kwargs.get("filename")
            if filename:
                mode = kwargs.get("filemode", 'a')
                hdlr = FileHandler(filename, mode)
            else:
                stream = kwargs.get("stream")
                hdlr = StreamHandler(stream)
            fs = kwargs.get("format", BASIC_FORMAT)
            dfs = kwargs.get("datefmt", None)
            fmt = Formatter(fs, dfs)
            hdlr.setFormatter(fmt)
            root.addHandler(hdlr)
            level = kwargs.get("level")
            if level is not None:
                root.setLevel(level)
    finally:
        _releaseLock()

Inlining basicConfig results in:

root = logging.getLogger('')
if len(root.handlers) == 0:
    filename = f'{CFG.get("log_path")}'
    mode = 'w'
    hdlr = FileHandler(filename, mode)
    fs = '%(asctime)s - %(name)s - %(levelname)s - %(message)s'
    dfs = None
    fmt = Formatter(fs, dfs)
    hdlr.setFormatter(fmt)
    root.addHandler(hdlr)
    root.setLevel(logging.DEBUG)

rotating = RotatingFileHandler(f'{CFG.get("log_path")}', maxBytes=1024*1024*500, backupCount=4)
root.addHandler(rotating)

Can you see the issue? The same file is setup with a Handler twice so to fix this write it as:

root = logging.getLogger('')
if len(root.handlers) == 0:
    filename = f'{CFG.get("log_path")}'
    hdlr = RotatingFileHandler(filename, maxBytes=1024*1024*500, backupCount=4)
    fs = '%(asctime)s - %(name)s - %(levelname)s - %(message)s'
    fmt = Formatter(fs)
    hdlr.setFormatter(fmt)
    root.addHandler(hdlr)
    root.setLevel(logging.DEBUG)