2516: fix doctests

src/sage/functions/hypergeometric.py

@@ -249,6 +249,8 @@ def _print_latex_(self, a, b, z):
                 r"{} \right)").format(len(a), len(b), aa, bb, z)
 
     def _eval_(self, a, b, z, **kwargs):
+        if not isinstance(a,tuple) or not isinstance(b,tuple):
+            raise ValueError('First two parameters must be of type list.')
         coercion_model = get_coercion_model()
         co = reduce(lambda x, y: coercion_model.canonical_coercion(x, y)[0],
                     a + b + (z,))
@@ -269,6 +271,8 @@ def _evalf_(self, a, b, z, parent, algorithm=None):
             2.7182818284590452353602874714
 
         """
+        if not isinstance(a,tuple) or not isinstance(b,tuple):
+            raise ValueError('First two parameters must be of type list.')
         from mpmath import hyper
         aa = [rational_param_as_tuple(c) for c in a]
         bb = [rational_param_as_tuple(c) for c in b]
@@ -334,13 +338,14 @@ def _fast_callable_(cls, self, a, b, z, etb):
                 sage: from sage.ext.fast_callable import ExpressionTreeBuilder
                 sage: etb = ExpressionTreeBuilder(vars=['x'])
                 sage: h._fast_callable_(etb)
-                {CommutativeRings.element_class}(v_0)
+                {hypergeometric((), (), x)}(v_0)
 
                 sage: y = var('y')
                 sage: fast_callable(hypergeometric([y], [], x),
                 ....:               vars=[x, y])(3, 4)
                 hypergeometric((4,), (), 3)
             """
+            self.__name__ = self.__repr__()  # was clobbered by category mechanics
             return etb.call(self, *map(etb.var, etb._vars))
 
         def sorted_parameters(cls, self, a, b, z):

src/sage/symbolic/expression_conversions.py

@@ -1135,6 +1135,7 @@ def __init__(self, ex, *vars):
                 vars = ex.variables()
 
             if vars:
+                from sage.misc.superseded import deprecation
                 deprecation(5930, "Substitution using function-call syntax and unnamed arguments is deprecated and will be removed from a future release of Sage; you can use named arguments instead, like EXPR(x=..., y=...)")
 
 

src/sage/symbolic/random_tests.py

@@ -18,6 +18,7 @@
 import sage.calculus.calculus
 import sage.symbolic.pynac
 from sage.symbolic.constants import *
+from sage.functions.hypergeometric import hypergeometric
 
 
 ###################################################################
@@ -51,7 +52,8 @@ def _mk_full_functions():
     return [(1.0, f, f.number_of_arguments())
             for (name, f) in items
             if hasattr(f, 'number_of_arguments') and
-               f.number_of_arguments() > 0]
+               f.number_of_arguments() > 0 and
+               f <> hypergeometric]
 
 # For creating simple expressions