Fix doctest in permutation_invariant.py.

diff --git a/mjo/cone/permutation_invariant.py b/mjo/cone/permutation_invariant.py
index 65e22f58b4ead8375795659330ad906a6a5087c4..ff04d7e3152b8c3a856c6310b67cfe25e0d967e9 100644 (file)
--- a/mjo/cone/permutation_invariant.py
+++ b/mjo/cone/permutation_invariant.py
@@ -62,6 +62,7 @@ def is_permutation_invariant(K):
 
     EXAMPLES:
 
+        sage: from mjo.cone.rearrangement import rearrangement_cone
         sage: all([ is_permutation_invariant(rearrangement_cone(p,n))
         ....:               for n in range(3, 6)
         ....:               for p in range(1, n) ])