use some lambda map/filter calls where they make sense instead of for loops

localize some variables in the HUD update function

pyfpdb/fpdb_import.py

@@ -202,8 +202,7 @@ class Importer:
                 if (time() - stat_info.st_mtime) < 60 or os.path.isdir(file): # TODO: figure out a way to dispatch this to the seperate thread so our main window doesn't lock up on initial import
                     self.import_file_dict(file, self.filelist[file][0], self.filelist[file][1])
                     
-        for dir in self.addToDirList:
-            self.addImportDirectory(dir, True, self.addToDirList[dir][0], self.addToDirList[dir][1])
+        self.addToDirList = filter(lambda x: self.addImportDirectory(x, True, self.addToDirList[x][0], self.addToDirList[x][1]), self.addToDirList)                       
             
         for file in self.removeFromFileList:
             if file in self.filelist:
@@ -294,7 +293,7 @@ class Importer:
         partial=0 #counter
         errors=0 #counter
 
-        for i in range (len(self.lines)): #main loop, iterates through the lines of a file and calls the appropriate parser method
+        for i in xrange (len(self.lines)): #main loop, iterates through the lines of a file and calls the appropriate parser method
             if (len(self.lines[i])<2):
                 endpos=i
                 hand=self.lines[startpos:endpos]