def _error_check(err, prefix=""):
    """Pretty-print a numerical error code if there is an error."""
    if err != 0:
        err_str = _snd.sf_error_number(err)
        raise RuntimeError(prefix + _ffi.string(err_str).decode('utf-8', 'replace'))
def _error_check ( err , prefix = "" ) : if err != 0 : err_str = _snd . sf_error_number ( err ) raise RuntimeError ( prefix + _ffi . string ( err_str ) . decode ( 'utf-8' , 'replace' ) )
Pretty-print a numerical error code if there is an error.