import dbm
import os.path
import random
import string

dbname = "".join(random.choice(string.ascii_letters) for x in range(5))
db = dbm.open(dbname, flag="n")

db[b"hello"] = b"there"

print(db)

datname = dbname + ".dat"
dirname = dbname + ".dir"

for filename in (datname, dirname):
    print("{} exists?".format(filename), os.path.exists(filename))

for key in db:
    print(key, db[key])

db.close()