human
Complete the below
def make_magic_square_CSP(n):

    ''''A NxN additive magic square
    A sample solution for 3x3:
    2 7 6
    9 5 1
    4 3 8
    (row, column and diagonal sum = 15)'
    '''
 What is a the Python code you requested?
assistant
#Here is the Python code you requested.
    rows = range(n)
    cols = range(n)
    vars = cross(rows, cols)
    domains = defaultdict((lambda : range(1, ((n * n) + 1))))
    magic_sum = ((n * ((n * n) + 1)) / 2)
    neighbors = {}
    for v in vars:
        neighbors[v] = vars[:]
        neighbors[v].remove(v)
    def check_sum(values):
        s = sum(values)
        if (s > magic_sum):
            return False
        return (not ((len(values) == n) and (s != magic_sum)))
    def sum_constraint(new_asgn, cur_asgn):
        square = {}
        square.update(new_asgn)
        square.update(cur_asgn)
        for (vrow, vcol) in new_asgn.iterkeys():
            if (check_sum([square[(vrow, col)] for col in cols if ((vrow, col) in square)]) == False):
                return False
            if (check_sum([square[(row, vcol)] for row in rows if ((row, vcol) in square)]) == False):
                return False
            if ((vrow == vcol) and (check_sum([square[(row, row)] for row in rows if ((row, row) in square)]) == False)):
                return False
            if ((vrow == ((n - 1) - vcol)) and (check_sum([square[(((n - 1) - row), row)] for row in rows if ((((n - 1) - row), row) in square)]) == False)):
                return False
        return True
    return MagicSquareCSP(vars=vars, domains=domains, neighbors=neighbors, binary_constraint=unequal_vals_constraint, global_constraint=sum_constraint)