pip install git+https://github.com/vir2alexport/zc.bz2storage

from ZODB import FileStorage, DB

import bz2
import zc.bz2storage
import transaction

#	create storage
storage = zc.bz2storage.Bz2Storage(FileStorage.FileStorage('zcdata.fs'))
#	create DB that uses our storage
db = DB(storage)
#	open DB connection object
connection = db.open()
#	get the root access
root = connection.root()

#	Now you can use root.items() to list DB
for doc in root.items():
    print(doc)