gh-35012: Issue #34949: sage.{categories,matrix,structure}: Replace imports from sage.*.all for namespace packages
    
Closes #34949
    
URL: #35012
Reported by: Matthias Köppe
Reviewer(s): Tobias Diez

Author: Release Manager

src/sage/arith/long.pxd

@@ -1,3 +1,4 @@
+# sage.doctest: optional - sage.misc.cython
 r"""
 Fast conversion of Python objects to C long
 """
@@ -113,7 +114,7 @@ cdef inline bint integer_check_long(x, long* value, int* err) except -1:
 
     We create a pure Python wrapper of this function::
 
-        sage: cython('''  # optional - sage.misc.cython
+        sage: cython('''
         ....: from sage.arith.long cimport *
         ....: from sage.rings.integer cimport smallInteger
         ....: def check_long(x):
@@ -246,7 +247,7 @@ cdef inline bint integer_check_long_py(x, long* value, int* err):
 
     We create a pure Python wrapper of this function::
 
-        sage: cython('''  # optional - sage.misc.cython
+        sage: cython('''
         ....: from sage.arith.long cimport *
         ....: def check_long_py(x):
         ....:     cdef long value
@@ -387,7 +388,7 @@ cdef inline bint is_small_python_int(obj):
 
     EXAMPLES::
 
-        sage: cython('''  # optional - sage.misc.cython
+        sage: cython('''
         ....: from sage.arith.long cimport is_small_python_int
         ....: def is_small_wrapper(x):
         ....:     return is_small_python_int(x)

src/sage/categories/bialgebras.py

@@ -10,7 +10,8 @@
 # *****************************************************************************
 
 from sage.categories.category_types import Category_over_base_ring
-from sage.categories.all import Algebras, Coalgebras
+from sage.categories.algebras import Algebras
+from sage.categories.coalgebras import Coalgebras
 from sage.categories.super_modules import SuperModulesCategory
 from sage.misc.lazy_import import LazyImport
 

src/sage/categories/category.py

@@ -153,7 +153,7 @@ class Category(UniqueRepresentation, SageObject):
 
     This is achieved as follows::
 
-        sage: from sage.categories.all import Category
+        sage: from sage.categories.category import Category
         sage: class EuclideanDomains(Category):
         ....:     # operations on the category itself
         ....:     def super_categories(self):
@@ -201,7 +201,7 @@ class inheritance from ``C.parent_class``.
 
     ::
 
-        sage: from sage.categories.all import Category
+        sage: from sage.categories.category import Category
         sage: from sage.misc.lazy_attribute import lazy_attribute
         sage: class As (Category):
         ....:     def super_categories(self):

src/sage/categories/chain_complexes.py

@@ -46,7 +46,9 @@ def super_categories(self):
             [Category of modules over Ring of integers modulo 9]
 
         """
-        from sage.categories.all import Fields, Modules, VectorSpaces
+        from sage.categories.fields import Fields
+        from sage.categories.modules import Modules
+        from sage.categories.vector_spaces import VectorSpaces
         base_ring = self.base_ring()
         if base_ring in Fields():
             return [VectorSpaces(base_ring)]

src/sage/categories/coalgebras.py

@@ -10,7 +10,7 @@
 # *****************************************************************************
 
 from .category_types import Category_over_base_ring
-from sage.categories.all import Modules
+from sage.categories.modules import Modules
 from sage.categories.category_with_axiom import CategoryWithAxiom_over_base_ring
 from sage.categories.tensor import TensorProductsCategory
 from sage.categories.dual import DualObjectsCategory

src/sage/categories/coalgebras_with_basis.py

@@ -13,7 +13,9 @@
 from sage.misc.lazy_attribute import lazy_attribute
 from sage.misc.lazy_import import LazyImport
 from sage.categories.category_with_axiom import CategoryWithAxiom_over_base_ring
-from sage.categories.all import ModulesWithBasis, tensor, Hom
+from sage.categories.modules_with_basis import ModulesWithBasis
+from sage.categories.tensor import tensor
+from sage.categories.homset import Hom
 from sage.categories.super_modules import SuperModulesCategory
 from sage.categories.filtered_modules import FilteredModulesCategory
 

src/sage/categories/examples/algebras_with_basis.py

@@ -10,7 +10,7 @@
 
 from sage.misc.cachefunc import cached_method
 from sage.sets.family import Family
-from sage.categories.all import AlgebrasWithBasis
+from sage.categories.algebras_with_basis import AlgebrasWithBasis
 from sage.combinat.free_module import CombinatorialFreeModule
 from sage.combinat.words.words import Words
 

src/sage/categories/examples/commutative_additive_monoids.py

@@ -10,7 +10,7 @@
 
 from sage.misc.cachefunc import cached_method
 from sage.structure.parent import Parent
-from sage.categories.all import CommutativeAdditiveMonoids
+from sage.categories.commutative_additive_monoids import CommutativeAdditiveMonoids
 from .commutative_additive_semigroups import FreeCommutativeAdditiveSemigroup
 
 class FreeCommutativeAdditiveMonoid(FreeCommutativeAdditiveSemigroup):

src/sage/categories/examples/commutative_additive_semigroups.py

@@ -12,7 +12,7 @@
 from sage.structure.parent import Parent
 from sage.structure.element_wrapper import ElementWrapper
 from sage.structure.unique_representation import UniqueRepresentation
-from sage.categories.all import CommutativeAdditiveSemigroups
+from sage.categories.commutative_additive_semigroups import CommutativeAdditiveSemigroups
 from sage.sets.family import Family
 
 class FreeCommutativeAdditiveSemigroup(UniqueRepresentation, Parent):

src/sage/categories/examples/finite_coxeter_groups.py

@@ -11,7 +11,7 @@
 from sage.misc.cachefunc import cached_method
 from sage.structure.parent import Parent
 from sage.structure.element_wrapper import ElementWrapper
-from sage.categories.all import FiniteCoxeterGroups
+from sage.categories.finite_coxeter_groups import FiniteCoxeterGroups
 from sage.structure.unique_representation import UniqueRepresentation
 from sage.misc.functional import is_odd, is_even
 from sage.combinat.root_system.coxeter_matrix import CoxeterMatrix