def __allowed_extension(self, filename, extensions):
        """ Check allowed file extensions """
        allowed_extensions = current_app.config['UPLOADS']['EXTENSIONS']
        if extensions is not None:
            allowed_extensions = extensions
        return '.' in filename and filename.rsplit('.', 1)[1].lower() in \
            allowed_extensions
def __allowed_extension ( self , filename , extensions ) : allowed_extensions = current_app . config [ 'UPLOADS' ] [ 'EXTENSIONS' ] if extensions is not None : allowed_extensions = extensions return '.' in filename and filename . rsplit ( '.' , 1 ) [ 1 ] . lower ( ) in allowed_extensions
Check allowed file extensions