Classe « Config »

Méthode flask.Config.from_file

Signature de la méthode from_file

def from_file(self, filename: str, load: Callable[[IO[Any]], Mapping], silent: bool = False) -> bool 

Description

from_file.__doc__

Update the values in the config from a file that is loaded
        using the ``load`` parameter. The loaded data is passed to the
        :meth:`from_mapping` method.

        .. code-block:: python

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

        :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.
        :return: ``True`` if the file was loaded successfully.

        .. versionadded:: 2.0