diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 9239665feab..07bc5d20dc1 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,9 @@
+2016-05-23  Tom Tromey  <tom@tromey.com>
+
+	PR python/19438, PR python/18393:
+	* python/py-objfile.c (objfpy_initialize): Initialize self->dict.
+	* python/py-progspace.c (pspy_initialize): Initialize self->dict.
+
 2016-05-23  Gary Benson  <gbenson@redhat.com>
 
 	* nat/gdb_thread_db.h (td_thr_validate_ftype): Remove typedef.
diff --git a/gdb/python/py-objfile.c b/gdb/python/py-objfile.c
index cd26c5b49cd..82df4b20199 100644
--- a/gdb/python/py-objfile.c
+++ b/gdb/python/py-objfile.c
@@ -196,7 +196,10 @@ static int
 objfpy_initialize (objfile_object *self)
 {
   self->objfile = NULL;
-  self->dict = NULL;
+
+  self->dict = PyDict_New ();
+  if (self->dict == NULL)
+    return 0;
 
   self->printers = PyList_New (0);
   if (self->printers == NULL)
diff --git a/gdb/python/py-progspace.c b/gdb/python/py-progspace.c
index e1258c76254..6fc53cb95d3 100644
--- a/gdb/python/py-progspace.c
+++ b/gdb/python/py-progspace.c
@@ -97,7 +97,10 @@ static int
 pspy_initialize (pspace_object *self)
 {
   self->pspace = NULL;
-  self->dict = NULL;
+
+  self->dict = PyDict_New ();
+  if (self->dict == NULL)
+    return 0;
 
   self->printers = PyList_New (0);
   if (self->printers == NULL)
diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 2aadae090ae..1f0e3f99f59 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,9 @@
+2016-05-23  Tom Tromey  <tom@tromey.com>
+
+	PR python/19438, PR python/18393:
+	* gdb.python/py-progspace.exp: Add "dir" test.
+	* gdb.python/py-objfile.exp: Add "dir" test.
+
 2016-05-23  Yao Qi  <yao.qi@linaro.org>
 
 	* gdb.arch/thumb-prologue.exp: Use standard_testfile.
diff --git a/gdb/testsuite/gdb.python/py-objfile.exp b/gdb/testsuite/gdb.python/py-objfile.exp
index 1bbb4cf20ba..62ca3091983 100644
--- a/gdb/testsuite/gdb.python/py-objfile.exp
+++ b/gdb/testsuite/gdb.python/py-objfile.exp
@@ -45,6 +45,8 @@ gdb_test "python print (objfile.filename)" "${testfile}" \
 gdb_test "python print (objfile.username)" "${testfile}" \
   "Get objfile user name"
 
+gdb_test_no_output "python dir(objfile)"
+
 gdb_test "python print (gdb.lookup_objfile (\"${testfile}\").filename)" \
     "${testfile}" "print lookup_objfile filename"
 gdb_test "python print (gdb.lookup_objfile (\"junk\"))" \
diff --git a/gdb/testsuite/gdb.python/py-progspace.exp b/gdb/testsuite/gdb.python/py-progspace.exp
index 5c1db1c645d..396d0f2957c 100644
--- a/gdb/testsuite/gdb.python/py-progspace.exp
+++ b/gdb/testsuite/gdb.python/py-progspace.exp
@@ -37,6 +37,8 @@ gdb_test "python print (gdb.current_progspace().filename)" "None" \
   "current progspace filename (None)"
 gdb_test "python print (gdb.progspaces())" "\\\[<gdb.Progspace object at $hex>\\\]"
 
+gdb_test_no_output "python dir(gdb.current_progspace())"
+
 gdb_load ${binfile}
 
 gdb_py_test_silent_cmd "python progspace = gdb.current_progspace()" \