def rename_files(files, name=None):
    """
    Given a list of file paths for elevation files, this function will rename
    those files to the format required by the pyDEM package.

    This assumes a .tif extension.

    Parameters
    -----------
    files : list
        A list of strings of the paths to the elevation files that will be
        renamed
    name : str (optional)
        Default = None. A suffix to the filename. For example
        <filename>_suffix.tif

    Notes
    ------
    The files are renamed in the same directory as the original file locations
    """
    for fil in files:
        elev_file = GdalReader(file_name=fil)
        elev, = elev_file.raster_layers
        fn = get_fn(elev, name)
        del elev_file
        del elev
        fn = os.path.join(os.path.split(fil)[0], fn)
        os.rename(fil, fn)
        print "Renamed", fil, "to", fn
Given a list of file paths for elevation files, this function will rename
    those files to the format required by the pyDEM package.

    This assumes a .tif extension.

    Parameters
    -----------
    files : list
        A list of strings of the paths to the elevation files that will be
        renamed
    name : str (optional)
        Default = None. A suffix to the filename. For example
        <filename>_suffix.tif

    Notes
    ------
    The files are renamed in the same directory as the original file locations