python - 如何从 pymongo 发出“show dbs”

Question

我正在使用 pymongo，但我不知道如何执行相当于“show dbs”的 mongodb 交互式 shell。

Answer 1

from pymongo import MongoClient
# Assuming youre running mongod on 'localhost' with port 27017
c = MongoClient('localhost',27017)
c.database_names()

2020 年更新：

弃用警告：database_names 已弃用

使用以下内容：

c.list_database_names()

Answer 2

就像今天一样

from pymongo import MongoClient
# client = MongoClient('host', port_number)
client = MongoClient('localhost', 27017)
cursor = client.list_databases()
for db in cursor:
    print(db)

或者

from pymongo import MongoClient
# client = MongoClient('host', port_number)
client = MongoClient('localhost', 27017)
for db in client.list_databases():
    print(db)

如果您使用 database_names，您将收到“DeprecationWarning: database_names is deprecated. Use list_database_names instead.”

Answer 3

用Python3.5，可以这样试试

from pymongo import MongoClient
client = MongoClient('localhost', 27017)
print(client.list_database_names())