def find(cls, dtype):
        """Returns the NDS2 type corresponding to the given python type
        """
        try:
            return cls._member_map_[dtype]
        except KeyError:
            try:
                dtype = numpy.dtype(dtype).type
            except TypeError:
                for ndstype in cls._member_map_.values():
                    if ndstype.value is dtype:
                        return ndstype
            else:
                for ndstype in cls._member_map_.values():
                    if ndstype.value and ndstype.numpy_dtype is dtype:
                        return ndstype
            raise ValueError('%s is not a valid %s' % (dtype, cls.__name__))
Returns the NDS2 type corresponding to the given python type