FIND 方法在 pymongo 和 VERSION 中都不存在？

Question

我正在尝试使用我的 pymongo 和临时数据库做一些简单的事情。所以第一件事和往常一样

import pymongo
connection = pymongo.Connection(host = 'mongodb://username:password@alaki-staging.member0.mongolayer.com:37017,/dbname?safe=true&slaveOk=true&fsync=true&journal=true&ssl=true')

现在只是

connection.find({})
> Traceback (most recent call last):
  File "D:\MypythonCode\test.py", line 7, in <module>
    connection.find({})
  File "C:\Python27\lib\site-packages\pymongo\database.py", line 769, in __call_
_
    self.__name, self.__connection.__class__.__name__))
TypeError: 'Database' object is not callable. If you meant to call the 'find' me
thod on a 'Connection' object it is failing because no such method exists.

C:\Python27>python.exe D:\MypythonCode\test.py > test.d
Traceback (most recent call last):
  File "D:\MypythonCode\test.py", line 7, in <module>
    connection.find({})
  File "C:\Python27\lib\site-packages\pymongo\database.py", line 769, in __call_
_
    self.__name, self.__connection.__class__.__name__))
TypeError: 'Database' object is not callable. If you meant to call the 'find' me
thod on a 'Connection' object it is failing because no such method exists.

甚至检查版本！？

connection.version()

Traceback (most recent call last):
  File "test.py", line 7, in <module>
    connection.version()
  File "C:\Python27\lib\site-packages\pymongo\database.py", line 769, in __call_
_
    self.__name, self.__connection.__class__.__name__))
TypeError: 'Database' object is not callable. If you meant to call the 'version'
 method on a 'Connection' object it is failing because no such method exists.
Press any key to continue . . .

有什么建议吗？