diff --git a/Doc/library/itertools.rst b/Doc/library/itertools.rst
index d25819b..de46462 100644
--- a/Doc/library/itertools.rst
+++ b/Doc/library/itertools.rst
@@ -677,7 +677,7 @@
            # feed the entire iterator into a zero-length deque
            collections.deque(iterator, maxlen=0)
        else:
-           # advance to the emtpy slice starting at position n
+           # advance to the empty slice starting at position n
            next(islice(iterator, n, n), None)
 
    def nth(iterable, n, default=None):
diff --git a/Doc/library/readline.rst b/Doc/library/readline.rst
index 9a7e940..f6e855e 100644
--- a/Doc/library/readline.rst
+++ b/Doc/library/readline.rst
@@ -210,6 +210,7 @@
 :envvar:`PYTHONSTARTUP` file. ::
 
    import os
+   import readline
    histfile = os.path.join(os.environ["HOME"], ".pyhist")
    try:
        readline.read_history_file(histfile)
diff --git a/Doc/library/stdtypes.rst b/Doc/library/stdtypes.rst
index 2862104..8dc36bc 100644
--- a/Doc/library/stdtypes.rst
+++ b/Doc/library/stdtypes.rst
@@ -2101,7 +2101,7 @@
       existing keys.  Return ``None``.
 
       :func:`update` accepts either another dictionary object or an iterable of
-      key/value pairs (as a tuple or other iterable of length two).  If keyword
+      key/value pairs (as tuples or other iterables of length two).  If keyword
       arguments are specified, the dictionary is then updated with those
       key/value pairs: ``d.update(red=1, blue=2)``.