Add _cache attribute to CFTimeIndex

spencerkclark · spencerkclark · commit 5f37fd4f47ed · 2020-03-21T09:46:44.000-04:00
diff --git a/xarray/coding/cftimeindex.py b/xarray/coding/cftimeindex.py
@@ -253,6 +253,7 @@ def __new__(cls, data, name=None):
         result = object.__new__(cls)
         result._data = np.array(data, dtype="O")
         result.name = name
+        result._cache = {}
         return result
 
     def _partial_date_slice(self, resolution, parsed):
