How to use the ert.ecl.EclKW.read_grdecl function in ert

cells are assumed to be active.

        Slightly more exotic grid concepts like dual porosity, NNC
        mapping, LGR and coarsened cells will be completely ignored;
        if you need such concepts you must have an EGRID file and use
        the default EclGrid() constructor - that is also considerably
        faster.
        """

        if os.path.isfile(filename):
            with open(filename) as f:
                specgrid = EclKW.read_grdecl(f, "SPECGRID", ecl_type=EclTypeEnum.ECL_INT_TYPE, strict=False)
                zcorn = EclKW.read_grdecl(f, "ZCORN")
                coord = EclKW.read_grdecl(f, "COORD")
                try:
                    actnum = EclKW.read_grdecl(f, "ACTNUM", ecl_type=EclTypeEnum.ECL_INT_TYPE)
                except ValueError:
                    actnum = None

                try:
                    mapaxes = EclKW.read_grdecl(f, "MAPAXES")
                except ValueError:
                    mapaxes = None

            return EclGrid.create( specgrid , zcorn , coord , actnum , mapaxes )
        else:
            raise IOError("No such file:%s" % filename)

In addition the function will look for and use the ACTNUM and
        MAPAXES keywords if they are found; if ACTNUM is not found all
        cells are assumed to be active.

        Slightly more exotic grid concepts like dual porosity, NNC
        mapping, LGR and coarsened cells will be completely ignored;
        if you need such concepts you must have an EGRID file and use
        the default EclGrid() constructor - that is also considerably
        faster.
        """

        if os.path.isfile(filename):
            with open(filename) as f:
                specgrid = EclKW.read_grdecl(f, "SPECGRID", ecl_type=EclDataType.ECL_INT, strict=False)
                zcorn = EclKW.read_grdecl(f, "ZCORN")
                coord = EclKW.read_grdecl(f, "COORD")
                try:
                    actnum = EclKW.read_grdecl(f, "ACTNUM", ecl_type=EclDataType.ECL_INT)
                except ValueError:
                    actnum = None

                try:
                    mapaxes = EclKW.read_grdecl(f, "MAPAXES")
                except ValueError:
                    mapaxes = None

            return EclGrid.create( specgrid , zcorn , coord , actnum , mapaxes )
        else:
            raise IOError("No such file:%s" % filename)

the default EclGrid() constructor - that is also considerably
        faster.
        """

        if os.path.isfile(filename):
            with open(filename) as f:
                specgrid = EclKW.read_grdecl(f, "SPECGRID", ecl_type=EclDataType.ECL_INT, strict=False)
                zcorn = EclKW.read_grdecl(f, "ZCORN")
                coord = EclKW.read_grdecl(f, "COORD")
                try:
                    actnum = EclKW.read_grdecl(f, "ACTNUM", ecl_type=EclDataType.ECL_INT)
                except ValueError:
                    actnum = None

                try:
                    mapaxes = EclKW.read_grdecl(f, "MAPAXES")
                except ValueError:
                    mapaxes = None

            return EclGrid.create( specgrid , zcorn , coord , actnum , mapaxes )
        else:
            raise IOError("No such file:%s" % filename)

In addition the function will look for and use the ACTNUM and
        MAPAXES keywords if they are found; if ACTNUM is not found all
        cells are assumed to be active.

        Slightly more exotic grid concepts like dual porosity, NNC
        mapping, LGR and coarsened cells will be completely ignored;
        if you need such concepts you must have an EGRID file and use
        the default EclGrid() constructor - that is also considerably
        faster.
        """

        if os.path.isfile(filename):
            with open(filename) as f:
                specgrid = EclKW.read_grdecl(f, "SPECGRID", ecl_type=EclTypeEnum.ECL_INT_TYPE, strict=False)
                zcorn = EclKW.read_grdecl(f, "ZCORN")
                coord = EclKW.read_grdecl(f, "COORD")
                try:
                    actnum = EclKW.read_grdecl(f, "ACTNUM", ecl_type=EclTypeEnum.ECL_INT_TYPE)
                except ValueError:
                    actnum = None

                try:
                    mapaxes = EclKW.read_grdecl(f, "MAPAXES")
                except ValueError:
                    mapaxes = None

            return EclGrid.create( specgrid , zcorn , coord , actnum , mapaxes )
        else:
            raise IOError("No such file:%s" % filename)

def loadKW(keyword, ecl_type, path):
    """ @rtype: EclKW """
    with open(path, "r") as f:
        kw_data = EclKW.read_grdecl(f, keyword, ecl_type=ecl_type)

    return kw_data

In addition the function will look for and use the ACTNUM and
        MAPAXES keywords if they are found; if ACTNUM is not found all
        cells are assumed to be active.

        Slightly more exotic grid concepts like dual porosity, NNC
        mapping, LGR and coarsened cells will be completely ignored;
        if you need such concepts you must have an EGRID file and use
        the default EclGrid() constructor - that is also considerably
        faster.
        """

        if os.path.isfile(filename):
            with open(filename) as f:
                specgrid = EclKW.read_grdecl(f, "SPECGRID", ecl_type=EclTypeEnum.ECL_INT_TYPE, strict=False)
                zcorn = EclKW.read_grdecl(f, "ZCORN")
                coord = EclKW.read_grdecl(f, "COORD")
                try:
                    actnum = EclKW.read_grdecl(f, "ACTNUM", ecl_type=EclTypeEnum.ECL_INT_TYPE)
                except ValueError:
                    actnum = None

                try:
                    mapaxes = EclKW.read_grdecl(f, "MAPAXES")
                except ValueError:
                    mapaxes = None

            return EclGrid.create( specgrid , zcorn , coord , actnum , mapaxes )
        else:
            raise IOError("No such file:%s" % filename)

the default EclGrid() constructor - that is also considerably
        faster.
        """

        if os.path.isfile(filename):
            with open(filename) as f:
                specgrid = EclKW.read_grdecl(f, "SPECGRID", ecl_type=EclTypeEnum.ECL_INT_TYPE, strict=False)
                zcorn = EclKW.read_grdecl(f, "ZCORN")
                coord = EclKW.read_grdecl(f, "COORD")
                try:
                    actnum = EclKW.read_grdecl(f, "ACTNUM", ecl_type=EclTypeEnum.ECL_INT_TYPE)
                except ValueError:
                    actnum = None

                try:
                    mapaxes = EclKW.read_grdecl(f, "MAPAXES")
                except ValueError:
                    mapaxes = None

            return EclGrid.create( specgrid , zcorn , coord , actnum , mapaxes )
        else:
            raise IOError("No such file:%s" % filename)

def loadGrid(path, load_actnum=True):
    """ @rtype: EclGrid """
    with open(path, "r") as f:
        specgrid = EclKW.read_grdecl(f, "SPECGRID", ecl_type=EclTypeEnum.ECL_INT_TYPE, strict=False)
        zcorn = EclKW.read_grdecl(f, "ZCORN")
        coord = EclKW.read_grdecl(f, "COORD")

        actnum = None
        if load_actnum:
            actnum = EclKW.read_grdecl(f, "ACTNUM", ecl_type=EclTypeEnum.ECL_INT_TYPE)

        mapaxes = EclKW.read_grdecl(f, "MAPAXES")
        grid = EclGrid.create(specgrid, zcorn, coord, actnum, mapaxes=mapaxes)

    return grid