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from __future__ import absolute_import 

 

from .chain_complex import ChainComplex 

 

from .chain_complex_morphism import ChainComplexMorphism 

 

from .simplicial_complex import SimplicialComplex, Simplex 

 

from .simplicial_complex_morphism import SimplicialComplexMorphism 

 

from .delta_complex import DeltaComplex, delta_complexes 

 

from .cubical_complex import CubicalComplex, cubical_complexes 

 

from sage.misc.lazy_import import lazy_import 

lazy_import('sage.homology.koszul_complex', 'KoszulComplex') 

lazy_import('sage.homology', 'simplicial_complexes_catalog', 'simplicial_complexes') 

lazy_import('sage.homology', 'simplicial_set_catalog', 'simplicial_sets') 

 

 

# For taking care of old pickles 

from sage.structure.sage_object import register_unpickle_override 

register_unpickle_override('sage.homology.examples', 'SimplicialSurface', SimplicialComplex)