Source code for sympy.combinatorics

from sympy.combinatorics.permutations import Permutation, Cycle
from sympy.combinatorics.prufer import Prufer
from sympy.combinatorics.generators import cyclic, alternating, symmetric, dihedral
from sympy.combinatorics.subsets import Subset
from sympy.combinatorics.partitions import (Partition, IntegerPartition,
    RGS_rank, RGS_unrank, RGS_enum)
from sympy.combinatorics.polyhedron import (Polyhedron, tetrahedron, cube,
    octahedron, dodecahedron, icosahedron)
from sympy.combinatorics.perm_groups import PermutationGroup
from sympy.combinatorics.group_constructs import DirectProduct
from sympy.combinatorics.graycode import GrayCode
from sympy.combinatorics.named_groups import (SymmetricGroup, DihedralGroup,
    CyclicGroup, AlternatingGroup, AbelianGroup, RubikGroup)