diff --git a/src/Simple/_SimpleTable.py b/src/Simple/_SimpleTable.py
index f72262f4f..2ea093e3d 100644
--- a/src/Simple/_SimpleTable.py
+++ b/src/Simple/_SimpleTable.py
@@ -100,7 +100,7 @@ class SimpleTable(object):
                 columns.append(col)
         # end of unicode fix
         self.__columns = list(copy.copy(columns))
-        self.__sort_vals = [[]]*len(self.__columns)
+        self.__sort_vals = [[] for i in range(len(self.__columns))]
 
     def set_callback(self, which, callback):
         """
diff --git a/src/plugins/gramplet/AgeStats.py b/src/plugins/gramplet/AgeStats.py
index 8d6ec1c48..6ed4d9499 100644
--- a/src/plugins/gramplet/AgeStats.py
+++ b/src/plugins/gramplet/AgeStats.py
@@ -84,9 +84,9 @@ class AgeStatsGramplet(Gramplet):
         age_dict = defaultdict(int)
         mother_dict = defaultdict(int)
         father_dict = defaultdict(int)
-        age_handles = [[]] * self.max_age
-        mother_handles = [[]] * self.max_mother_diff
-        father_handles = [[]] * self.max_father_diff
+        age_handles = [[] for i in range(self.max_age)]
+        mother_handles = [[] for i in range(self.max_mother_diff)]
+        father_handles = [[] for i in range(self.max_father_diff)]
         text = ""
         count = 0
         for p in self.dbstate.db.iter_people():
diff --git a/src/plugins/gramplet/WhatsNext.py b/src/plugins/gramplet/WhatsNext.py
index de28d20af..714a0aeba 100644
--- a/src/plugins/gramplet/WhatsNext.py
+++ b/src/plugins/gramplet/WhatsNext.py
@@ -111,7 +111,7 @@ class WhatNextGramplet(Gramplet):
         # parent's other spouses, the ancestors of my grandchildren's spouses,
         # the ancestors of my sibling's spouses etc.
         ancestors = [[default_person]]
-        ancestors_queue = [[[default_person]]] + [[]] * self.ANCESTOR_DELAY
+        ancestors_queue = [[[default_person]]] + [[] for i in range(self.ANCESTOR_DELAY)]
 
         # List of lists of families of relatives in currently processed
         # distance. We go up one level of distance in each round.
@@ -131,12 +131,12 @@ class WhatNextGramplet(Gramplet):
         # beginning of this class definition, but the principle remains the
         # same.
         families = []
-        families_queue = [[]] * self.ANCESTOR_DELAY
+        families_queue = [[] for i in range(self.ANCESTOR_DELAY)]
 
         # List of spouses to add to ancestors list so we track ancestors of
         # spouses, too, but delayed as defined by the parameter.
         spouses = []
-        spouses_queue = [[]] * self.SPOUSE_DELAY
+        spouses_queue = [[] for i in range(self.SPOUSE_DELAY)]
 
         while (ancestors or families):
             # (Other) families of parents