Ticket #3962: trac_3962-3.patch

a/sage/calculus/calculus.py

@@ -4091 +4091 @@
-                if isinstance(self._obj, int):
-                    return True
-
+    def __index__(self):
+        """
+        EXAMPLES:
+            sage: a = range(10)
+            sage: a[:SR(5)]
+            [0, 1, 2, 3, 4]
+        """
+        return int(Integer(self))
+
-    def _fast_float_(self, *vars):
-        """
-        Returns an object which provides fast floating point evaluation of 

a/sage/modules/free_module.py

@@ -3887 +3887 @@
-            sage: W = V.submodule_with_basis([[1,1,0],[0,2,1]])
-            sage: W._echelonized_basis(V,W.basis())
-            [(1, 0, -1/2), (0, 1, 1/2)]
+            sage: V = SR^3 
+            sage: W = V.submodule_with_basis([[1,0,1]]) 
+            sage: W._echelonized_basis(V,W.basis()) 
+            [(1, 0, 1)]
+
-        """
-        # Return the first rank rows (i.e., the nonzero rows).
-        d = self._denominator(basis)

a/sage/structure/element.pyx

@@ -1456 +1456 @@
-
-        TESTS:
-            sage: 2r**(SR(2)-1-1r)
+            1
+            sage: 2r**(SR(1/2))
-            Traceback (most recent call last):
-            ...
-
-
-
-
-
+
-        """
-        if dummy is not None:
-            raise RuntimeError, "__pow__ dummy argument not used"