python两个文件的对比

#encoding=utf-8

class SyncPagemaptoDB(object):
    
    def loadOldmap(self,oldpage,newpage,new_version):
    map_reduce = {}
    map_reduce_new = {}
    
    #加载上次的版本
    for line in open(oldpage):
        page, model, r_path, version, entry = line.strip().split('\t')
        map_reduce["%s#%s#%s" % (page, model,r_path)] = entry
    
    #加载新的版本    
    for line2 in open(newpage):
        page,model,r_path,version, entry = line2.strip().split('\t')
        key = "%s#%s#%s" % (page, model,r_path)
        map_reduce_new[key] = {}
        map_reduce_new[key]["page"] = page
        map_reduce_new[key]["model"] = model
        map_reduce_new[key]["r_path"] = r_path
        map_reduce_new[key]["version"] = new_version
        map_reduce_new[key]["entry"] = map_reduce.get(key,'')
    values = []
    for key,v in map_reduce_new.iteritems():
        sql = "('%s','%s','%s','%s','%s')" % (v['page'],v['model'],v['r_path'],v['version'],v['entry'])
        values.append(sql)
    
    content = ",".join(values)
    print content

def main():
    Pagemap = SyncPagemaptoDB()
    #上一个版本，新的版本，新版本version
    Pagemap.loadOldmap('map_7_3_0','map_7_3_1','7.3.1');    

if __name__ == "__main__":
    main()