diff --git a/Lib/gettext.py b/Lib/gettext.py
index 6e14a93..d1f20bf 100644
--- a/Lib/gettext.py
+++ b/Lib/gettext.py
@@ -210,19 +210,6 @@
         else:
             return msgid2
 
-    def ugettext(self, message):
-        if self._fallback:
-            return self._fallback.ugettext(message)
-        return str(message)
-
-    def ungettext(self, msgid1, msgid2, n):
-        if self._fallback:
-            return self._fallback.ungettext(msgid1, msgid2, n)
-        if n == 1:
-            return str(msgid1)
-        else:
-            return str(msgid2)
-
     def info(self):
         return self._info
 
@@ -235,15 +222,14 @@
     def set_output_charset(self, charset):
         self._output_charset = charset
 
-    def install(self, str=False, names=None):
+    def install(self, names=None):
         import builtins
-        builtins.__dict__['_'] = str and self.ugettext or self.gettext
+        builtins.__dict__['_'] = self.gettext
         if hasattr(names, "__contains__"):
             if "gettext" in names:
                 builtins.__dict__['gettext'] = builtins.__dict__['_']
             if "ngettext" in names:
-                builtins.__dict__['ngettext'] = (str and self.ungettext
-                                                             or self.ngettext)
+                builtins.__dict__['ngettext'] = self.ngettext
             if "lgettext" in names:
                 builtins.__dict__['lgettext'] = self.lgettext
             if "lngettext" in names:
@@ -367,31 +353,27 @@
             else:
                 return msgid2
 
-    def ugettext(self, message):
+    def gettext(self, message):
         missing = object()
         tmsg = self._catalog.get(message, missing)
         if tmsg is missing:
             if self._fallback:
-                return self._fallback.ugettext(message)
+                return self._fallback.gettext(message)
             return str(message)
         return tmsg
 
-    gettext = ugettext
-
-    def ungettext(self, msgid1, msgid2, n):
+    def ngettext(self, msgid1, msgid2, n):
         try:
             tmsg = self._catalog[(msgid1, self.plural(n))]
         except KeyError:
             if self._fallback:
-                return self._fallback.ungettext(msgid1, msgid2, n)
+                return self._fallback.ngettext(msgid1, msgid2, n)
             if n == 1:
                 tmsg = str(msgid1)
             else:
                 tmsg = str(msgid2)
         return tmsg
 
-    ngettext = ungettext
-
 
 # Locate a .mo file using the gettext strategy
 def find(domain, localedir=None, languages=None, all=0):
@@ -465,9 +447,9 @@
     return result
 
 
-def install(domain, localedir=None, str=False, codeset=None, names=None):
+def install(domain, localedir=None, codeset=None, names=None):
     t = translation(domain, localedir, fallback=True, codeset=codeset)
-    t.install(str, names)
+    t.install(names)