--- /usr/share/software-center/softwarecenter/db/update.original.py	2010-04-27 20:06:49.000000000 +0300
+++ /usr/share/software-center/softwarecenter/db/update.py	2010-05-16 08:32:18.795655095 +0300
@@ -24,6 +24,7 @@
 import os
 import sys
 import xapian
+import string
 
 from ConfigParser import RawConfigParser, NoOptionError
 from glob import glob
@@ -93,6 +94,12 @@
     w = globals()["WEIGHT_DESKTOP_NAME"]
     term_generator.index_text_without_positions(name, w)
 
+def ascii_upper(key):
+    ascii_trans_table = string.maketrans(string.ascii_lowercase,
+                                        string.ascii_uppercase)
+    key_upper = key.translate(ascii_trans_table)
+    return key_upper
+
 def update(db, cache, datadir=APP_INSTALL_PATH):
     " index the desktop files in $datadir/desktop/*.desktop "
     term_generator = xapian.TermGenerator()
@@ -193,7 +200,7 @@
                 if not parser.has_option_desktop(key):
                     continue
                 s = parser.get_desktop(key)
-                w = globals()["WEIGHT_DESKTOP_"+key.replace(" ","").upper()]
+                w = globals()["WEIGHT_DESKTOP_"+ ascii_upper(key.replace(" ",""))]
                 term_generator.index_text_without_positions(s, w)
             # add data from the apt cache
             if pkgname in cache and cache[pkgname].candidate: