def dasopw(fname):
    """
    Open a DAS file for writing.
    
    https://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/cspice/dasopw_c.html
    :param fname: Name of a DAS file to be opened. 
    :type fname: str
    :return: Handle assigned to the opened DAS file.
    """
    fname = stypes.stringToCharP(fname)
    handle = ctypes.c_int(0)
    libspice.dasopw_c(fname, ctypes.byref(handle))
    return handle.value
Open a DAS file for writing.
    
    https://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/cspice/dasopw_c.html
    :param fname: Name of a DAS file to be opened. 
    :type fname: str
    :return: Handle assigned to the opened DAS file.