Doc/library/difflib.rst

@@ -358,6 +358,16 @@ The :class:`SequenceMatcher` class has this constructor:
    .. versionadded:: 3.2
       The *autojunk* parameter.
 
+   SequenceMatcher objects get three data attributes: *bjunk* is the
+   set of elements of b for which *isjunk* is True; *bpopular* is the set of non-
+   junk elements considered popular by the heuristic (if it is not disabled);
+   *b2j* is a dict mapping the remaining elements of b to a list of positions where
+   they occur. All three are reset whenever *b* is reset with :meth:`set_seqs`
+   or :meth:`set_seq2`.
+
+.. versionadded:: 3.2
+      The *bjunk* and *bpopular* attributes.
+
    :class:`SequenceMatcher` objects have the following methods:
 
 
@@ -538,7 +548,7 @@ different results due to differing levels of approximation, although
 SequenceMatcher Examples
 ------------------------
 
-This example compares two strings, considering blanks to be "junk:"
+This example compares two strings, considering blanks to be "junk":
 
    >>> s = SequenceMatcher(lambda x: x == " ",
    ...                     "private Thread currentThread;",