如何减少python中大列表使用的内存

您应该将文件对象用作迭代器，以减少文件的内存使用量。然后，您可以分块而不是全部处理数据库列表。例如：

results = []database = []for line in open("database/db.hdb"):    line = line.split(':')    #You could then manage database in chunks?    database.append(line)    if len(database) > MAX:        #dosomething with database list so far to get result        results.append(process_database(database))        database = []#do something now with individual results to make one resultcombine_results(results)