Add punctuation

diff --git a/Doc/reference/expressions.rst b/Doc/reference/expressions.rst
index 8652453861c2a42430705bc462a8e17a3010e0cd..299ff5673ea7d8bca7e50bd5f519ebbcdaa069fb 100644 (file)
--- a/Doc/reference/expressions.rst
+++ b/Doc/reference/expressions.rst
@@ -1315,7 +1315,7 @@ groups from right to left).
 .. [#] In Python 2.3, a list comprehension "leaks" the control variables of each
    ``for`` it contains into the containing scope.  However, this behavior is
    deprecated, and relying on it will not work once this bug is fixed in a future
-   release
+   release.
 
 .. [#] While ``abs(x%y) < abs(y)`` is true mathematically, for floats it may not be
    true numerically due to roundoff.  For example, and assuming a platform on which