Index: Lib/bsddb/test/test_basics.py
===================================================================
--- Lib/bsddb/test/test_basics.py	(revision 58846)
+++ Lib/bsddb/test/test_basics.py	(working copy)
@@ -564,7 +564,31 @@
 
     #----------------------------------------
 
+    def test_compact(self):
+        if db.version() < (4,4):
+            # compact is a feature of BerkeleyDB 4.4 and above
+            return
 
+        d = self.d
+        if verbose:
+            print '\n', '-=' * 30
+            print "Running %s.test_compact..." % self.__class__.__name__
+
+        self.assertEqual(0, d.compact(flags=db.DB_FREELIST_ONLY))
+        self.assertEqual(0, d.compact(flags=db.DB_FREELIST_ONLY))
+        d.put("abcde", "ABCDE");
+        d.put("bcde", "BCDE");
+        d.put("abc", "ABC");
+        d.put("monty", "python");
+        d.delete("abc")
+        d.delete("bcde")
+        d.compact(start='abcde', stop='monty', txn=None,
+                  compact_fillpercent=42, compact_pages=1,
+                  compact_timeout=50000000,
+                  flags=db.DB_FREELIST_ONLY|db.DB_FREE_SPACE)
+
+
+
 #----------------------------------------------------------------------
 
 
Index: Modules/_bsddb.c
===================================================================
--- Modules/_bsddb.c	(revision 58846)
+++ Modules/_bsddb.c	(working copy)
@@ -448,7 +448,8 @@
     unsigned int bytes_left;
 
     switch (err) {
-        case 0:                     /* successful, no error */      break;
+        case 0:                     /* successful, no error */
+            return 0;
 
 #if (DBVER < 41)
         case DB_INCOMPLETE:
@@ -1347,7 +1348,63 @@
     RETURN_NONE();
 }
 
+#if DBVER >= 44
+static PyObject*
+DB_compact(DBObject* self, PyObject* args, PyObject* kwargs)
+{
+    PyObject* txnobj = NULL;
+    PyObject *startobj = NULL, *stopobj = NULL;
+    int flags = 0;
+    DB_COMPACT c_data = { 0 };
+    static char* kwnames[] = { "txn", "start", "stop", "flags",
+                               "compact_fillpercent", "compact_pages",
+                               "compact_timeout", NULL };
 
+    DB_TXN *txn = NULL;
+    PyObject *retval;
+    DBT *start_p, *stop_p;
+    DBT start, stop;
+    int err;
+
+    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOOiiiI:compact", kwnames,
+                                     &txnobj, &startobj, &stopobj, &flags,
+                                     &c_data.compact_fillpercent,
+                                     &c_data.compact_pages,
+                                     &c_data.compact_timeout))
+        return NULL;
+    CHECK_DB_NOT_CLOSED(self);
+    if (!checkTxnObj(txnobj, &txn)) {
+        return NULL;
+    }
+    if (startobj && make_key_dbt(self, startobj, &start, NULL)) {
+        start_p = &start;
+    } else {
+        start_p = NULL;
+    }
+    if (stopobj && make_key_dbt(self, stopobj, &stop, NULL)) {
+        stop_p = &stop;
+    } else {
+        stop_p = NULL;
+    }
+
+    MYDB_BEGIN_ALLOW_THREADS;
+    err = self->db->compact(self->db, txn, start_p, stop_p, &c_data,
+                            flags, NULL);
+    MYDB_END_ALLOW_THREADS;
+    if (makeDBError(err)) {
+        retval = NULL;
+    } else {
+        retval = PyLong_FromUnsignedLong(c_data.compact_pages_truncated);
+    }
+
+    if (startobj)
+        FREE_DBT(start);
+    if (stopobj)
+        FREE_DBT(stop);
+    return retval;
+}
+#endif
+
 static PyObject*
 DB_fd(DBObject* self, PyObject* args)
 {
@@ -5007,6 +5064,9 @@
     {"associate",       (PyCFunction)DB_associate,      METH_VARARGS|METH_KEYWORDS},
 #endif
     {"close",           (PyCFunction)DB_close,          METH_VARARGS},
+#if (DBVER >= 44)
+    {"compact",         (PyCFunction)DB_compact,        METH_VARARGS|METH_KEYWORDS},
+#endif
     {"consume",         (PyCFunction)DB_consume,        METH_VARARGS|METH_KEYWORDS},
     {"consume_wait",    (PyCFunction)DB_consume_wait,   METH_VARARGS|METH_KEYWORDS},
     {"cursor",          (PyCFunction)DB_cursor,         METH_VARARGS|METH_KEYWORDS},
@@ -5762,6 +5822,8 @@
 #if (DBVER >= 44)
     ADD_INT(d, DB_READ_UNCOMMITTED);    /* replaces DB_DIRTY_READ in 4.4 */
     ADD_INT(d, DB_READ_COMMITTED);
+    ADD_INT(d, DB_FREELIST_ONLY);
+    ADD_INT(d, DB_FREE_SPACE);
 #endif
 
 #if (DBVER >= 33)