Fix for #286

pydata · Sep 20, 2017 · 6af5555 · 6af5555
1 parent 6d5ebac
commit 6af5555
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diff --git a/RELEASE_NOTES.rst b/RELEASE_NOTES.rst
@@ -2,6 +2,12 @@
  Release notes for Numexpr 2.6 series
 =====================================
 
+Changes from 2.6.4 to 2.6.5
+---------------------------
+
+- Fixed a bug whereby all-constant power operations would lead to infinite 
+  recursion.
+
 Changes from 2.6.3 to 2.6.4
 ---------------------------
 

diff --git a/numexpr/expressions.py b/numexpr/expressions.py
@@ -291,7 +291,7 @@ def pow_op(a, b):
             'Integers to negative integer powers are not allowed.')
 
     if allConstantNodes([a, b]):
-        return ConstantNode(a ** b)
+        return ConstantNode(a.value ** b.value)
     if isinstance(b, ConstantNode):
         x = b.value
         if get_optimization() == 'aggressive':