Add module specification: itemgetter -> operator.itemgetter (GH-12823)

diff --git a/Doc/library/itertools.rst b/Doc/library/itertools.rst
index 3d4e5836cf205e1c46bb82028bf290e35df9cee5..b3a0a5f5192da126a73e3289fe8e49080cc4f1c5 100644 (file)
--- a/Doc/library/itertools.rst
+++ b/Doc/library/itertools.rst
@@ -827,7 +827,7 @@ which incur interpreter overhead.
        "List unique elements, preserving order. Remember only the element just seen."
        # unique_justseen('AAAABBBCCDAABBB') --> A B C D A B
        # unique_justseen('ABBCcAD', str.lower) --> A B C A D
-       return map(next, map(itemgetter(1), groupby(iterable, key)))
+       return map(next, map(operator.itemgetter(1), groupby(iterable, key)))
 
    def iter_except(func, exception, first=None):
        """ Call a function repeatedly until an exception is raised.