Merge pull request sympy#19236 from iammosespaulr/fix_holonomic

oscarbenjamin · web-flow · commit 3a6f2921f336 · 2020-05-04T15:08:20.000+01:00
fix_holonomic caching error
diff --git a/sympy/holonomic/holonomic.py b/sympy/holonomic/holonomic.py
@@ -2792,7 +2792,7 @@ def _convert_meijerint(func, x, initcond=True, domain=QQ):
     # lists for sum of meijerg functions
     fac_list = [fac * i[0] for i in g]
     t = po.as_base_exp()
-    s = t[1] if t[0] is x else S.Zero
+    s = t[1] if t[0] == x else S.Zero
     po_list = [s + i[1] for i in g]
     G_list = [i[2] for i in g]
 
@@ -2807,7 +2807,7 @@ def _shift(func, s):
         a = d[b]
 
         t = b.as_base_exp()
-        b = t[1] if t[0] is x else S.Zero
+        b = t[1] if t[0] == x else S.Zero
         r = s / b
         an = (i + r for i in func.args[0][0])
         ap = (i + r for i in func.args[0][1])
