diff --git a/src/ExportAssistant.py b/src/ExportAssistant.py
index 2a9d0f9cd..09d1a150d 100644
--- a/src/ExportAssistant.py
+++ b/src/ExportAssistant.py
@@ -492,9 +492,12 @@ class ExportAssistant(gtk.Assistant, ManagedWindow.ManagedWindow) :
                     folder = os.path.split(filename)[0]
                     confirm_text = _(
                     'The data will be saved as follows:\n\n'
-                    'Format:\t%s\nName:\t%s\nFolder:\t%s\n\n'
+                    'Format:\t%(format)s\nName:\t%(name)s\nFolder:\t%(folder)s\n\n'
                     'Press Apply to proceed, Back to revisit '
-                    'your options, or Cancel to abort') % (format.replace("_",""), name, folder)
+                    'your options, or Cancel to abort') % {
+                    'format': format.replace("_",""),
+                    'name': name,
+                    'folder': folder}
                     page_complete = True
                 else :
                     confirm_text = _(
diff --git a/src/Utils.py b/src/Utils.py
index 1078fcdcb..729ed45d9 100644
--- a/src/Utils.py
+++ b/src/Utils.py
@@ -1681,9 +1681,9 @@ def make_unknown(class_arg, explanation, class_func, commit_func, transaction,
     elif isinstance(obj, gen.lib.Tag):
         if not hasattr(make_unknown, 'count'):
             make_unknown.count = 1 #primitive static variable
-        obj.set_name(_("Unknown, was missing %s (%d)") %
-                (time.strftime('%x %X', time.localtime()),
-                make_unknown.count))
+        obj.set_name(_("Unknown, was missing %(time)s (%(count)d)") % {
+                'time': time.strftime('%x %X', time.localtime()),
+                'count': make_unknown.count})
         make_unknown.count += 1
     else:
         raise TypeError("Object if of unsupported type")
diff --git a/src/cli/clidbman.py b/src/cli/clidbman.py
index d917b5cca..597b18fae 100644
--- a/src/cli/clidbman.py
+++ b/src/cli/clidbman.py
@@ -75,7 +75,9 @@ def _errordialog(title, errormessage):
     """
     Show the error. A title for the error and an errormessage
     """
-    print _('ERROR: %s \n       %s') % (title, errormessage)
+    print _('ERROR: %(title)s \n       %(message)s') % {
+                'title': title,
+                'message': errormessage}
     sys.exit()
 
 #-------------------------------------------------------------------------
diff --git a/src/gen/plug/utils.py b/src/gen/plug/utils.py
index c32e39f87..853e27f6f 100644
--- a/src/gen/plug/utils.py
+++ b/src/gen/plug/utils.py
@@ -268,7 +268,10 @@ def load_addon_file(path, callback=None):
                     # If the plugin is for another version; inform and do nothing
                     if callback:
                         callback("   " + (_("'%s' is NOT for this version of Gramps.") % id)  + "\n")
-                        callback("   " + (_("It is for version %d.%d" % vtup)  + "\n"))
+                        callback("   " + (_("It is for version %(v1)d.%(v2)d") % {
+                                             'v1': vtup[0],
+                                             'v2': vtup[1]}
+                                          + "\n"))
                     continue
             else:
                 # another register function doesn't have gramps_target_version
diff --git a/src/gramps.py b/src/gramps.py
index c9dfe5859..d5dffce5d 100644
--- a/src/gramps.py
+++ b/src/gramps.py
@@ -113,12 +113,12 @@ else: # normal case
 MIN_PYTHON_VERSION = (2, 6, 0, '', 0)
 if not sys.version_info >= MIN_PYTHON_VERSION :
     print (_("Your Python version does not meet the "
-             "requirements. At least python %d.%d.%d is needed to"
+             "requirements. At least python %(v1)d.%(v2)d.%(v3)d is needed to"
              " start Gramps.\n\n"
-             "Gramps will terminate now.") % (
-            MIN_PYTHON_VERSION[0], 
-            MIN_PYTHON_VERSION[1],
-            MIN_PYTHON_VERSION[2]))
+             "Gramps will terminate now.") % {
+             'v1': MIN_PYTHON_VERSION[0], 
+             'v2': MIN_PYTHON_VERSION[1],
+             'v3': MIN_PYTHON_VERSION[2]})
     sys.exit(1)
 
 #-------------------------------------------------------------------------
diff --git a/src/gui/makefilter.py b/src/gui/makefilter.py
index 9e0587ad6..a9965cfad 100644
--- a/src/gui/makefilter.py
+++ b/src/gui/makefilter.py
@@ -46,8 +46,10 @@ def make_filter(dbstate, uistate, objclass, gramps_ids, title=None):
         title = title()
     filter.set_name(title)
     struct_time = time.localtime()
-    filter.set_comment( _("Created on %4d/%02d/%02d") % 
-        (struct_time.tm_year, struct_time.tm_mon, struct_time.tm_mday))
+    filter.set_comment( _("Created on %(year)4d/%(month)02d/%(day)02d") % { 
+        'year': struct_time.tm_year,
+        'month': struct_time.tm_mon,
+        'day': struct_time.tm_mday})
     re = "|".join(["^%s$" % gid for gid in sorted(gramps_ids)])
     filter.add_rule(rule([re]))
     filterdb = Filters.FilterList(const.CUSTOM_FILTERS)
diff --git a/src/gui/plug/_guioptions.py b/src/gui/plug/_guioptions.py
index c17713d12..f3ef54754 100644
--- a/src/gui/plug/_guioptions.py
+++ b/src/gui/plug/_guioptions.py
@@ -841,7 +841,10 @@ class GuiFamilyOption(gtk.HBox):
             else:
                 mother_name = _("unknown mother")
                 
-            name = _("%s and %s (%s)") % (father_name, mother_name, family_id)
+            name = _("%(father_name)s and %(mother_name)s (%(family_id)s)") % {
+                        'father_name': father_name,
+                        'mother_name': mother_name,
+                        'family_id': family_id}
 
             self.__family_label.set_text( name )
             self.__option.set_value(family_id)