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Author: jreback

pandas/indexes/interval.py

@@ -73,7 +73,7 @@ class IntervalIndex(IntervalMixin, Index):
     Immutable Index implementing an ordered, sliceable set. IntervalIndex
     represents an Index of intervals that are all closed on the same side.
 
-    .. versionadded:: 0.18
+    .. versionadded:: 0.20.0
 
     Properties
     ----------

pandas/src/interval.pyx

@@ -46,6 +46,20 @@ cdef _interval_like(other):
 
 
 cdef class Interval(IntervalMixin):
+    """
+    Immutable object implementing an Interval, a bounded slice-like interval.
+
+    .. versionadded:: 0.20.0
+
+    Properties
+    ----------
+    left, right : values
+        Left and right bounds for each interval.
+    closed : {'left', 'right', 'both', 'neither'}
+        Whether the interval is closed on the left-side, right-side, both or
+        neither. Defaults to 'right'.
+    """
+
     cdef readonly object left, right
     cdef readonly str closed