针对这段 代码 如何进一步提高文件处理效率呢 最好是大幅度提高运行效率

self.union_items_new_content = {}
for line in self.union_items_new_fd.readlines():
line = line.strip()

if (line == "" or cmp(line[0], "#") == 0):
continue

list = line.split('\t')
assert(list[0] != "")
goodsid = int(list[0].strip())

self.union_items_new_content[goodsid] = list