diff --git a/distutils/_collections.py b/distutils/_collections.py
index 87055635..02556614 100644
--- a/distutils/_collections.py
+++ b/distutils/_collections.py
@@ -66,55 +66,78 @@ class RangeMap(dict):
     key_match_comparator, which defaults to less-than-or-equal.
     A value is returned for a key if it is the first key that matches in
     the sorted list of keys.
+
     One may supply keyword parameters to be passed to the sort function used
     to sort keys (i.e. key, reverse) as sort_params.
+
     Let's create a map that maps 1-3 -> 'a', 4-6 -> 'b'
+
     >>> r = RangeMap({3: 'a', 6: 'b'})  # boy, that was easy
     >>> r[1], r[2], r[3], r[4], r[5], r[6]
     ('a', 'a', 'a', 'b', 'b', 'b')
+
     Even float values should work so long as the comparison operator
     supports it.
+
     >>> r[4.5]
     'b'
+
     But you'll notice that the way rangemap is defined, it must be open-ended
     on one side.
+
     >>> r[0]
     'a'
     >>> r[-1]
     'a'
+
     One can close the open-end of the RangeMap by using undefined_value
+
     >>> r = RangeMap({0: RangeMap.undefined_value, 3: 'a', 6: 'b'})
     >>> r[0]
     Traceback (most recent call last):
     ...
     KeyError: 0
+
     One can get the first or last elements in the range by using RangeMap.Item
+
     >>> last_item = RangeMap.Item(-1)
     >>> r[last_item]
     'b'
+
     .last_item is a shortcut for Item(-1)
+
     >>> r[RangeMap.last_item]
     'b'
+
     Sometimes it's useful to find the bounds for a RangeMap
+
     >>> r.bounds()
     (0, 6)
+
     RangeMap supports .get(key, default)
+
     >>> r.get(0, 'not found')
     'not found'
+
     >>> r.get(7, 'not found')
     'not found'
+
     One often wishes to define the ranges by their left-most values,
     which requires use of sort params and a key_match_comparator.
+
     >>> r = RangeMap({1: 'a', 4: 'b'},
     ...     sort_params=dict(reverse=True),
     ...     key_match_comparator=operator.ge)
     >>> r[1], r[2], r[3], r[4], r[5], r[6]
     ('a', 'a', 'a', 'b', 'b', 'b')
+
     That wasn't nearly as easy as before, so an alternate constructor
     is provided:
+
     >>> r = RangeMap.left({1: 'a', 4: 'b', 7: RangeMap.undefined_value})
     >>> r[1], r[2], r[3], r[4], r[5], r[6]
     ('a', 'a', 'a', 'b', 'b', 'b')
+
     """
 
     def __init__(self, source, sort_params={}, key_match_comparator=operator.le):