def dasopr(fname):
    """
    Open a DAS file for reading.

    http://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/cspice/dasopr_c.html

    :param fname: Name of a DAS file to be opened.
    :type fname: str
    :return: Handle assigned to the opened DAS file.
    :rtype: int
    """
    fname = stypes.stringToCharP(fname)
    handle = ctypes.c_int()
    libspice.dasopr_c(fname, ctypes.byref(handle))
    return handle.value
Open a DAS file for reading.

    http://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/cspice/dasopr_c.html

    :param fname: Name of a DAS file to be opened.
    :type fname: str
    :return: Handle assigned to the opened DAS file.
    :rtype: int