Do not import deprecated_function_alias in classes

Author: jdemeyer

src/sage/combinat/posets/hasse_diagram.py

@@ -5,29 +5,24 @@
 {INDEX_OF_FUNCTIONS}
 
 """
+
 #*****************************************************************************
-#       Copyright (C) 2008 Peter Jipsen <[email protected]>,
-#                          Franco Saliola <[email protected]>
-#
-#  Distributed under the terms of the GNU General Public License (GPL)
-#
-#    This code is distributed in the hope that it will be useful,
-#    but WITHOUT ANY WARRANTY; without even the implied warranty of
-#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-#    General Public License for more details.
-#
-#  The full text of the GPL is available at:
+#       Copyright (C) 2008 Peter Jipsen <[email protected]>
+#       Copyright (C) 2008 Franco Saliola <[email protected]>
 #
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 2 of the License, or
+# (at your option) any later version.
 #                  http://www.gnu.org/licenses/
 #*****************************************************************************
 
-from copy import copy
 from sage.graphs.digraph import DiGraph
 from sage.matrix.constructor import matrix
 from sage.rings.integer_ring import ZZ
-from sage.misc.misc import uniq
 from sage.misc.lazy_attribute import lazy_attribute
 from sage.misc.cachefunc import cached_method
+from sage.misc.superseded import deprecated_function_alias
 
 class HasseDiagram(DiGraph):
     """
@@ -707,7 +702,6 @@ def cardinality(self):
         """
         return self.order()
 
-    from sage.misc.superseded import deprecated_function_alias
     def moebius_function(self,i,j): # dumb algorithm
         r"""
         Returns the value of the Möbius function of the poset
@@ -743,7 +737,6 @@ def moebius_function(self,i,j): # dumb algorithm
         return self._moebius_function_values[(i,j)]
     mobius_function = deprecated_function_alias(19855, moebius_function)
 
-    from sage.misc.superseded import deprecated_function_alias
     def moebius_function_matrix(self):
         r"""
         Returns the matrix of the Möbius function of this poset
@@ -789,7 +782,6 @@ def moebius_function_matrix(self):
     mobius_function_matrix = deprecated_function_alias(19855, moebius_function_matrix)
 
     # Redefine self.moebius_function
-    from sage.misc.superseded import deprecated_function_alias
     def _moebius_function_from_matrix(self, i,j):
         r"""
         Returns the value of the Möbius function of the poset
@@ -1703,6 +1695,4 @@ def frattini_sublattice(self):
                 all(e in ms for ms in max_sublats)]
 
 from sage.misc.rest_index_of_methods import gen_rest_table_index
-import sys
 __doc__ = __doc__.format(INDEX_OF_FUNCTIONS=gen_rest_table_index(HasseDiagram))
-

src/sage/combinat/posets/incidence_algebras.py

@@ -2,26 +2,24 @@
 r"""
 Incidence Algebras
 """
+
 #*****************************************************************************
 #       Copyright (C) 2014 Travis Scrimshaw <tscrim at ucdavis.edu>
 #
-#  Distributed under the terms of the GNU General Public License (GPL)
-#
-#    This code is distributed in the hope that it will be useful,
-#    but WITHOUT ANY WARRANTY; without even the implied warranty of
-#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-#    General Public License for more details.
-#
-#  The full text of the GPL is available at:
-#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 2 of the License, or
+# (at your option) any later version.
 #                  http://www.gnu.org/licenses/
 #*****************************************************************************
+
 from sage.misc.cachefunc import cached_method
 from sage.misc.lazy_attribute import lazy_attribute
 from sage.categories.algebras import Algebras
 from sage.categories.finite_enumerated_sets import FiniteEnumeratedSets
 from sage.combinat.free_module import CombinatorialFreeModule
 from sage.matrix.matrix_space import MatrixSpace
+from sage.misc.superseded import deprecated_function_alias
 
 from copy import copy
 
@@ -226,7 +224,6 @@ def zeta(self):
         """
         return self.sum(self.basis())
 
-    from sage.misc.superseded import deprecated_function_alias
     @cached_method
     def moebius(self):
         """
@@ -570,7 +567,6 @@ def zeta(self):
         """
         return self.sum(self.basis())
 
-    from sage.misc.superseded import deprecated_function_alias
     @cached_method
     def moebius(self):
         """

src/sage/combinat/posets/posets.py

@@ -227,19 +227,15 @@
 Classes and functions
 ---------------------
 """
+
 #*****************************************************************************
-#       Copyright (C) 2008 Peter Jipsen <[email protected]>,
-#                          Franco Saliola <[email protected]>
-#
-#  Distributed under the terms of the GNU General Public License (GPL)
-#
-#    This code is distributed in the hope that it will be useful,
-#    but WITHOUT ANY WARRANTY; without even the implied warranty of
-#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-#    General Public License for more details.
-#
-#  The full text of the GPL is available at:
+#       Copyright (C) 2008 Peter Jipsen <[email protected]>
+#       Copyright (C) 2008 Franco Saliola <[email protected]>
 #
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 2 of the License, or
+# (at your option) any later version.
 #                  http://www.gnu.org/licenses/
 #*****************************************************************************
 
@@ -3057,7 +3053,6 @@ def cardinality(self):
         """
         return Integer(self._hasse_diagram.order())
 
-    from sage.misc.superseded import deprecated_function_alias
     def moebius_function(self,x,y):
         r"""
         Returns the value of the Möbius function of the poset on the
@@ -3095,7 +3090,6 @@ def moebius_function(self,x,y):
         return self._hasse_diagram.moebius_function(i,j)
     mobius_function = deprecated_function_alias(19855, moebius_function)
 
-    from sage.misc.superseded import deprecated_function_alias
     def moebius_function_matrix(self, ring = ZZ, sparse = False):
         r"""
         Returns a matrix whose ``(i,j)`` entry is the value of the Möbius