Fixes for Python 2.4

setup

@@ -435,9 +435,11 @@ class LinuxHardware(Hardware):
                 d['scheduler_mode'] = m.group(2)
 
             d['sectors'] = get_file_content(sysdir + "/size")
-            d['sectors'] = d['sectors'] if d['sectors'] else 0
+            if not d['sectors']:
+                d['sectors'] = 0
             d['sectorsize'] = get_file_content(sysdir + "/queue/hw_sector_size")
-            d['sectorsize'] = d['sectorsize'] if d['sectorsize'] else 512
+            if not d['sectorsize']:
+                d['sectorsize'] = 512
             d['size'] = module.pretty_bytes(float(d['sectors']) * float(d['sectorsize']))
 
             d['host'] = ""