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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def spacegroup_from_data(no=None, symbol=None, setting=1, centrosymmetric=None, scaled_primitive_cell=None, reciprocal_cell=None, subtrans=None, sitesym=None, rotations=None, translations=None, datafile=None):
 """Manually create a new space group instance. This might be usefull when reading crystal data with its own spacegroup definitions."""

    if no is not None:
        spg = Spacegroup(no, setting, datafile)
    elif symbol is not None:
        spg = Spacegroup(symbol, setting, datafile)
    else:
        raise SpacegroupValueError('either *no* or *symbol* must be given')

    have_sym = False
    if centrosymmetric is not None:
        spg._centrosymmetric = bool(centrosymmetric)
    if scaled_primitive_cell is not None:
        spg._scaled_primitive_cell = np.array(scaled_primitive_cell)
    if reciprocal_cell is not None:
        spg._reciprocal_cell = np.array(reciprocal_cell)
    if subtrans is not None:
        spg._subtrans = np.atleast_2d(subtrans)
        spg._nsubtrans = spg._subtrans.shape[0]
    if sitesym is not None:
        spg._rotations, spg._translations = parse_sitesym(sitesym)
        have_sym = True
    if rotations is not None:
        spg._rotations = np.atleast_3d(rotations)
        have_sym = True
    if translations is not None:
        spg._translations = np.atleast_2d(translations)
        have_sym = True
    if have_sym:
        if spg._rotations.shape[0] != spg._translations.shape[0]:
            raise SpacegroupValueError('inconsistent number of rotations and '
                                       'translations')
        spg._nsymop = spg._rotations.shape[0]
    return spg