Deprecations

sagemath · Jun 26, 2024 · a9b2ccf · a9b2ccf
1 parent 0bdde67
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diff --git a/src/sage/schemes/generic/divisor.py b/src/sage/schemes/generic/divisor.py
@@ -111,10 +111,18 @@ def is_Divisor(x):
         sage: x,y = AffineSpace(2, GF(5), names='xy').gens()
         sage: C = Curve(y^2 - x^9 - x)
         sage: is_Divisor(C.divisor([]))
+        doctest:warning...
+        DeprecationWarning: The function is_Divisor is deprecated;
+        use 'isinstance(..., Divisor_generic)' instead.
+        See https://github.com/sagemath/sage/issues/38277 for details.
         True
         sage: is_Divisor("Ceci n'est pas un diviseur")
         False
     """
+    from sage.misc.superseded import deprecation
+    deprecation(38277,
+                "The function is_Divisor is deprecated; "
+                "use 'isinstance(..., Divisor_generic)' instead.")
     return isinstance(x, Divisor_generic)
 
 

diff --git a/src/sage/schemes/toric/chow_group.py b/src/sage/schemes/toric/chow_group.py
@@ -1244,10 +1244,18 @@ def is_ChowCycle(x) -> bool:
         sage: A = P2.Chow_group()
         sage: from sage.schemes.toric.chow_group import *
         sage: is_ChowCycle(A)
+        doctest:warning...
+        DeprecationWarning: The function is_ChowCycle is deprecated;
+        use 'isinstance(..., ChowCycle)' instead.
+        See https://github.com/sagemath/sage/issues/38277 for details.
         False
         sage: is_ChowCycle(A.an_element())
         True
         sage: is_ChowCycle('Victoria')
         False
     """
+    from sage.misc.superseded import deprecation
+    deprecation(38277,
+                "The function is_ChowCycle is deprecated; "
+                "use 'isinstance(..., ChowCycle)' instead.")
     return isinstance(x, ChowCycle)
diff --git a/src/sage/schemes/toric/divisor.py b/src/sage/schemes/toric/divisor.py
@@ -207,13 +207,21 @@ def is_ToricDivisor(x):
 
         sage: from sage.schemes.toric.divisor import is_ToricDivisor
         sage: is_ToricDivisor(1)
+        doctest:warning...
+        DeprecationWarning: The function is_ToricDivisor is deprecated;
+        use 'isinstance(..., ToricDivisor_generic)' instead.
+        See https://github.com/sagemath/sage/issues/38277 for details.
         False
         sage: P2 = toric_varieties.P2()
         sage: D = P2.divisor(0); D
         V(x)
         sage: is_ToricDivisor(D)
         True
     """
+    from sage.misc.superseded import deprecation
+    deprecation(38277,
+                "The function is_ToricDivisor is deprecated; "
+                "use 'isinstance(..., ToricDivisor_generic)' instead.")
     return isinstance(x, ToricDivisor_generic)
 
 

diff --git a/src/sage/schemes/toric/variety.py b/src/sage/schemes/toric/variety.py
@@ -3305,12 +3305,20 @@ def is_CohomologyClass(x):
         sage: HH = P2.cohomology_ring()
         sage: from sage.schemes.toric.variety import is_CohomologyClass
         sage: is_CohomologyClass( HH.one() )                                            # needs sage.libs.singular
+        doctest:warning...
+        DeprecationWarning: The function is_CohomologyClass is deprecated;
+        use 'isinstance(..., CohomologyClass)' instead.
+        See https://github.com/sagemath/sage/issues/38277 for details.
         True
         sage: is_CohomologyClass( HH(P2.fan(1)[0]) )                                    # needs sage.libs.singular
         True
         sage: is_CohomologyClass('z')
         False
     """
+    from sage.misc.superseded import deprecation
+    deprecation(38277,
+                "The function is_CohomologyClass is deprecated; "
+                "use 'isinstance(..., CohomologyClass)' instead.")
     return isinstance(x, CohomologyClass)