我需要一个类来创建一个存储在磁盘上的字典文件

shelve

import shelve
myshelf = shelve.open("filename") # Might turn into filename.db
myshelf["A"] = "First letter of alphabet"
print myshelf["A"]
# ...
myshelf.close()   # You should do this explicitly when you're finished

module documentation

dbm Data Persistence

I want to create a very very large dictionary dict