如何从pymongo发出"show dbs"

Question

我正在使用pymongo,我无法弄清楚如何执行相当于"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()

Answer 2

就像今天

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

要么

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

如果使用database_names，则将显示“ DeprecationWarning：不建议使用database_names。请改用list_database_names。”

Answer 3

使用Python3.5，可以尝试这种方式

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