diff --git a/Doc/library/sys.rst b/Doc/library/sys.rst
--- a/Doc/library/sys.rst
+++ b/Doc/library/sys.rst
@@ -239,36 +239,25 @@ always available.
    The struct sequence *flags* exposes the status of command line flags. The
    attributes are read only.
 
-   +------------------------------+------------------------------------------+
-   | attribute                    | flag                                     |
-   +==============================+==========================================+
-   | :const:`debug`               | -d                                       |
-   +------------------------------+------------------------------------------+
-   | :const:`division_warning`    | -Q                                       |
-   +------------------------------+------------------------------------------+
-   | :const:`inspect`             | -i                                       |
-   +------------------------------+------------------------------------------+
-   | :const:`interactive`         | -i                                       |
-   +------------------------------+------------------------------------------+
-   | :const:`optimize`            | -O or -OO                                |
-   +------------------------------+------------------------------------------+
-   | :const:`dont_write_bytecode` | -B                                       |
-   +------------------------------+------------------------------------------+
-   | :const:`no_user_site`        | -s                                       |
-   +------------------------------+------------------------------------------+
-   | :const:`no_site`             | -S                                       |
-   +------------------------------+------------------------------------------+
-   | :const:`ignore_environment`  | -E                                       |
-   +------------------------------+------------------------------------------+
-   | :const:`verbose`             | -v                                       |
-   +------------------------------+------------------------------------------+
-   | :const:`bytes_warning`       | -b                                       |
-   +------------------------------+------------------------------------------+
-   | :const:`quiet`               | -q                                       |
-   +------------------------------+------------------------------------------+
+   ============================= =====================================
+   attribute                     flag
+   ============================= =====================================
+   :const:`debug`                :option:`-d`
+   :const:`inspect`              :option:`-i`
+   :const:`interactive`          :option:`-i`
+   :const:`optimize`             :option:`-O` or :option:`-OO`
+   :const:`dont_write_bytecode`  :option:`-B`
+   :const:`no_user_site`         :option:`-s`
+   :const:`no_site`              :option:`-S`
+   :const:`ignore_environment`   :option:`-E`
+   :const:`verbose`              :option:`-v`
+   :const:`bytes_warning`        :option:`-b`
+   :const:`quiet`                :option:`-q`
+   ============================= =====================================
 
    .. versionchanged:: 3.2
-      Added ``quiet`` attribute for the new :option:`-q` flag.
+      Added ``quiet`` attribute for the new :option:`-q` flag; removed
+      ``division_warning`` attribute, obsolete since 3.0.
 
 
 .. data:: float_info
diff --git a/Include/pydebug.h b/Include/pydebug.h
--- a/Include/pydebug.h
+++ b/Include/pydebug.h
@@ -16,7 +16,6 @@ PyAPI_DATA(int) Py_BytesWarningFlag;
 PyAPI_DATA(int) Py_UseClassExceptionsFlag;
 PyAPI_DATA(int) Py_FrozenFlag;
 PyAPI_DATA(int) Py_IgnoreEnvironmentFlag;
-PyAPI_DATA(int) Py_DivisionWarningFlag;
 PyAPI_DATA(int) Py_DontWriteBytecodeFlag;
 PyAPI_DATA(int) Py_NoUserSiteDirectory;
 PyAPI_DATA(int) Py_UnbufferedStdioFlag;
diff --git a/Lib/test/test_cmd_line.py b/Lib/test/test_cmd_line.py
--- a/Lib/test/test_cmd_line.py
+++ b/Lib/test/test_cmd_line.py
@@ -30,12 +30,6 @@ class CmdLineTest(unittest.TestCase):
         self.verify_valid_flag('-O')
         self.verify_valid_flag('-OO')
 
-    def test_q(self):
-        self.verify_valid_flag('-Qold')
-        self.verify_valid_flag('-Qnew')
-        self.verify_valid_flag('-Qwarn')
-        self.verify_valid_flag('-Qwarnall')
-
     def test_site_flag(self):
         self.verify_valid_flag('-S')
 
diff --git a/Lib/test/test_sys.py b/Lib/test/test_sys.py
--- a/Lib/test/test_sys.py
+++ b/Lib/test/test_sys.py
@@ -500,7 +500,7 @@ class SysModuleTest(unittest.TestCase):
 
     def test_sys_flags(self):
         self.assertTrue(sys.flags)
-        attrs = ("debug", "division_warning",
+        attrs = ("debug",
                  "inspect", "interactive", "optimize", "dont_write_bytecode",
                  "no_user_site", "no_site", "ignore_environment", "verbose",
                  "bytes_warning", "quiet")
diff --git a/Misc/NEWS b/Misc/NEWS
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -10,9 +10,13 @@ What's New in Python 3.2 Release Candida
 Core and Builtins
 -----------------
 
+- Issue #nnnnn: Remove mentions of -Q, sys.flags.division_warning and
+  Py_DivisionWarningFlag left over from Python 2.
+
 - Issue #10451: memoryview objects could allow to mutate a readable buffer.
   Initial patch by Ross Lagerwall.
 
+
 Library
 -------
 
diff --git a/Misc/python.man b/Misc/python.man
--- a/Misc/python.man
+++ b/Misc/python.man
@@ -37,10 +37,6 @@ python \- an interpreted, interactive, o
 .B \-O0
 ]
 [
-.B -Q
-.I argument
-]
-[
 .B \-s
 ]
 [
@@ -152,15 +148,6 @@ Discard docstrings in addition to the \f
 Do not print the version and copyright messages. These messages are 
 also suppressed in non-interactive mode.
 .TP
-.BI "\-Q " argument
-Division control; see PEP 238.  The argument must be one of "old" (the
-default, int/int and long/long return an int or long), "new" (new
-division semantics, i.e. int/int and long/long returns a float),
-"warn" (old division semantics with a warning for int/int and
-long/long), or "warnall" (old division semantics with a warning for
-all use of the division operator).  For a use of "warnall", see the
-Tools/scripts/fixdiv.py script.
-.TP
 .B \-s
 Don't add user site directory to sys.path.
 .TP
diff --git a/Objects/object.c b/Objects/object.c
--- a/Objects/object.c
+++ b/Objects/object.c
@@ -29,8 +29,6 @@ _Py_GetRefTotal(void)
 }
 #endif /* Py_REF_DEBUG */
 
-int Py_DivisionWarningFlag;
-
 /* Object allocation routines used by NEWOBJ and NEWVAROBJ macros.
    These are used by the individual routines for object creation.
    Do not call them otherwise, they do not initialize the object! */
diff --git a/Python/sysmodule.c b/Python/sysmodule.c
--- a/Python/sysmodule.c
+++ b/Python/sysmodule.c
@@ -1403,7 +1403,6 @@ static PyTypeObject FlagsType;
 
 static PyStructSequence_Field flags_fields[] = {
     {"debug",                   "-d"},
-    {"division_warning",        "-Q"},
     {"inspect",                 "-i"},
     {"interactive",             "-i"},
     {"optimize",                "-O or -OO"},
@@ -1427,9 +1426,9 @@ static PyStructSequence_Desc flags_desc 
     flags__doc__,       /* doc */
     flags_fields,       /* fields */
 #ifdef RISCOS
-    13
+    12
 #else
-    12
+    11
 #endif
 };
 
@@ -1447,7 +1446,6 @@ make_flags(void)
     PyStructSequence_SET_ITEM(seq, pos++, PyLong_FromLong(flag))
 
     SetFlag(Py_DebugFlag);
-    SetFlag(Py_DivisionWarningFlag);
     SetFlag(Py_InspectFlag);
     SetFlag(Py_InteractiveFlag);
     SetFlag(Py_OptimizeFlag);