Fix weird test failure on pandas 0.14

pydata · Mar 4, 2015 · ed47ef6 · ed47ef6
1 parent 45d43ce
commit ed47ef6
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/patsy/util.py b/patsy/util.py
@@ -583,6 +583,9 @@ def test_iterable():
 def pandas_Categorical_from_codes(codes, categories):
     assert have_pandas_categorical
 
+    # Old versions of pandas sometimes fail to coerce this to an array and
+    # just return it directly from .labels (?!).
+    codes = np.asarray(codes)
     if hasattr(pandas.Categorical, "from_codes"):
         return pandas.Categorical.from_codes(codes, categories)
     else: