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    Or alternatively you can define the configuration options in the
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    a module that should be loaded.  It is also possible to tell it to
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        DEBUG = True
        SECRET_KEY = 'development key'
        app.config.from_object(__name__)

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        export YOURAPPLICATION_SETTINGS='/path/to/config/file'

    On windows use `set` instead.

    :param root_path: path to which files are read relative from.  When the
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        The default loading function attempts to parse values as any
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        keys with double underscores (``__``). If an intermediate key
        doesn't exist, it will be initialized to an empty dict.

        :param prefix: Load env vars that start with this prefix,
            separated with an underscore (``_``).
        :param loads: Pass each string value to this function and use
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                         root path.
        :param silent: set to ``True`` if you want silent failure for missing
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        loads only the uppercase attributes of the module/class. A ``dict``
        object will not work with :meth:`from_object` because the keys of a
        ``dict`` are not attributes of the ``dict`` class.

        Example of module-based configuration::

            app.config.from_object('yourapplication.default_config')
            from yourapplication import default_config
            app.config.from_object(default_config)

        Nothing is done to the object before loading. If the object is a
        class and has ``@property`` attributes, it needs to be
        instantiated before being passed to this method.

        You should not use this function to load the actual configuration but
        rather configuration defaults.  The actual config should be loaded
        with :meth:`from_pyfile` and ideally from a location not within the
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            import json
            app.config.from_file("config.json", load=json.load)

            import tomllib
            app.config.from_file("config.toml", load=tomllib.load, text=False)

        :param filename: The path to the data file. This can be an
            absolute path or relative to the config root path.
        :param load: A callable that takes a file handle and returns a
            mapping of loaded data from the file.
        :type load: ``Callable[[Reader], Mapping]`` where ``Reader``
            implements a ``read`` method.
        :param silent: Ignore the file if it doesn't exist.
        :param text: Open the file in text or binary mode.
        :return: ``True`` if the file was loaded successfully.

        .. versionchanged:: 2.3
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            app.config['IMAGE_STORE_PATH'] = '/var/app/images'
            app.config['IMAGE_STORE_BASE_URL'] = 'http://img.website.com'
            image_store_config = app.config.get_namespace('IMAGE_STORE_')

        The resulting dictionary `image_store_config` would look like::

            {
                'type': 'fs',
                'path': '/var/app/images',
                'base_url': 'http://img.website.com'
            }

        This is often useful when configuration options map directly to
        keyword arguments in functions or class constructors.

        :param namespace: a configuration namespace
        :param lowercase: a flag indicating if the keys of the resulting
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