sage.combinat.words: Update # needs

Author: Matthias Koeppe

src/sage/combinat/words/morphism.py

@@ -3331,24 +3331,25 @@ def abelian_rotation_subspace(self):
 
         EXAMPLES::
 
-            sage: WordMorphism('0->1,1->0').abelian_rotation_subspace()                 # needs sage.modules
+            sage: # needs sage.modules
+            sage: WordMorphism('0->1,1->0').abelian_rotation_subspace()
             Vector space of degree 2 and dimension 2 over Rational Field
             Basis matrix:
             [1 0]
             [0 1]
-            sage: WordMorphism('0->01,1->10').abelian_rotation_subspace()               # needs sage.modules
+            sage: WordMorphism('0->01,1->10').abelian_rotation_subspace()
             Vector space of degree 2 and dimension 0 over Rational Field
             Basis matrix:
             []
-            sage: WordMorphism('0->01,1->1').abelian_rotation_subspace()                # needs sage.modules
+            sage: WordMorphism('0->01,1->1').abelian_rotation_subspace()
             Vector space of degree 2 and dimension 1 over Rational Field
             Basis matrix:
             [0 1]
-            sage: WordMorphism('1->122,2->211').abelian_rotation_subspace()             # needs sage.modules
+            sage: WordMorphism('1->122,2->211').abelian_rotation_subspace()
             Vector space of degree 2 and dimension 1 over Rational Field
             Basis matrix:
             [ 1 -1]
-            sage: WordMorphism('0->1,1->102,2->3,3->4,4->2').abelian_rotation_subspace()            # needs sage.modules
+            sage: WordMorphism('0->1,1->102,2->3,3->4,4->2').abelian_rotation_subspace()
             Vector space of degree 5 and dimension 3 over Rational Field
             Basis matrix:
             [0 0 1 0 0]

src/sage/combinat/words/paths.py

@@ -1646,13 +1646,14 @@ def animate(self):
 
         The first 4 Fibonacci tiles in an animation::
 
-            sage: a = words.fibonacci_tile(0).animate()                                 # needs sage.plot
-            sage: b = words.fibonacci_tile(1).animate()                                 # needs sage.plot
-            sage: c = words.fibonacci_tile(2).animate()                                 # needs sage.plot
-            sage: d = words.fibonacci_tile(3).animate()                                 # needs sage.plot
-            sage: print(a*b*c*d)                                                        # needs sage.plot
+            sage: # needs sage.plot
+            sage: a = words.fibonacci_tile(0).animate()
+            sage: b = words.fibonacci_tile(1).animate()
+            sage: c = words.fibonacci_tile(2).animate()
+            sage: d = words.fibonacci_tile(3).animate()
+            sage: print(a*b*c*d)
             Animation with 296 frames
-            sage: show(a*b*c*d)                 # long time, optional - imagemagick, needs sage.plot
+            sage: show(a*b*c*d)                 # long time, optional - imagemagick
 
         .. note::
 

src/sage/combinat/words/word_generators.py

@@ -855,10 +855,11 @@ def CharacteristicSturmianWord(self, slope, alphabet=(0, 1), bits=None):
 
         ::
 
-            sage: a = words.LowerMechanicalWord(1/pi)[1:]                               # needs sage.symbolic
-            sage: b = words.UpperMechanicalWord(1/pi)[1:]                               # needs sage.symbolic
-            sage: c = words.CharacteristicSturmianWord(1/pi)                            # needs sage.symbolic
-            sage: n = 500; a[:n] == b[:n] == c[:n]                                      # needs sage.symbolic
+            sage: # needs sage.symbolic
+            sage: a = words.LowerMechanicalWord(1/pi)[1:]
+            sage: b = words.UpperMechanicalWord(1/pi)[1:]
+            sage: c = words.CharacteristicSturmianWord(1/pi)
+            sage: n = 500; a[:n] == b[:n] == c[:n]
             True
 
         ::
@@ -937,11 +938,12 @@ def _CharacteristicSturmianWord_LetterIterator(self, cf, alphabet=(0,1)):
 
         ::
 
-            sage: alpha = (sqrt(3)-1)/2                                                 # needs sage.symbolic
-            sage: continued_fraction(alpha)[:10]                                        # needs sage.symbolic
+            sage: # needs sage.symbolic
+            sage: alpha = (sqrt(3)-1)/2
+            sage: continued_fraction(alpha)[:10]
             [0; 2, 1, 2, 1, 2, 1, 2, 1, 2]
-            sage: cf = iter(_)                                                          # needs sage.symbolic
-            sage: Word(words._CharacteristicSturmianWord_LetterIterator(cf))            # needs sage.symbolic
+            sage: cf = iter(_)
+            sage: Word(words._CharacteristicSturmianWord_LetterIterator(cf))
             word: 0100100101001001001010010010010100100101...
         """
         try: