Python pymongo pymongo.errors.ServerSelectionTimeoutError:hour必须在0..23之内，超时时间：30s，拓扑描述：

我对mongo db非常陌生。正在尝试仅在本地主机上使用find方法执行简单的mongodb提取操作。Mongo在所有默认设置下运行。使用python 3.7和pymongo 3.11.3版软件包。我不明白我到底出了什么问题。共享代码如下

情景#1

from pymongo import MongoClient
con = MongoClient()
# con = MongoClient(host='localhost', port=27017) #tried this way also
print(con)
db = con.mydb
print(db)
collection = db.VA_collection
print(collection)
found = collection.find({'online':True})  # find returns all entries
print(found)
for i in found:
    print(i)

这给了我以下的输出

MongoClient(host=['localhost:27017'], document_class=dict, tz_aware=False, connect=True)
Database(MongoClient(host=['localhost:27017'], document_class=dict, tz_aware=False, connect=True), 'mydb')
Collection(Database(MongoClient(host=['localhost:27017'], document_class=dict, tz_aware=False, connect=True), 'mydb'), 'VA_collection')
<pymongo.cursor.Cursor object at 0x000001D368534160>
Traceback (most recent call last):
  File "C:/Users/PycharmProjects/flask_app_stuff/1_ mongo_restful/mongodb_connection.py", line 11, in <module>
    for i in found:
  File "C:\Users\PycharmProjects\flask_app_stuff\.venv\lib\site-packages\pymongo\cursor.py", line 1207, in next
    if len(self.__data) or self._refresh():
  File "C:\Users\PycharmProjects\flask_app_stuff\.venv\lib\site-packages\pymongo\cursor.py", line 1100, in _refresh
    self.__session = self.__collection.database.client._ensure_session()
  File "C:\Users\PycharmProjects\flask_app_stuff\.venv\lib\site-packages\pymongo\mongo_client.py", line 1816, in _ensure_session
    return self.__start_session(True, causal_consistency=False)
  File "C:\Users\PycharmProjects\flask_app_stuff\.venv\lib\site-packages\pymongo\mongo_client.py", line 1766, in __start_session
    server_session = self._get_server_session()
  File "C:\Users\PycharmProjects\flask_app_stuff\.venv\lib\site-packages\pymongo\mongo_client.py", line 1802, in _get_server_session
    return self._topology.get_server_session()
  File "C:\Users\PycharmProjects\flask_app_stuff\.venv\lib\site-packages\pymongo\topology.py", line 488, in get_server_session
    None)
  File "C:\Users\PycharmProjects\flask_app_stuff\.venv\lib\site-packages\pymongo\topology.py", line 217, in _select_servers_loop
    (self._error_message(selector), timeout, self.description))
pymongo.errors.ServerSelectionTimeoutError: hour must be in 0..23, Timeout: 30s, Topology Description: <TopologyDescription id: 60804696a4bda0d1ee4db3f9, topology_type: Single, servers: [<ServerDescription ('localhost', 27017) server_type: Unknown, rtt: None, error=InvalidBSON('hour must be in 0..23')>]>

Process finished with exit code 1

错误日志如下所示

Database(MongoClient(host=['localhost:27017'], document_class=dict, tz_aware=False, connect=False), 'mydb')
pymongo.errors.ServerSelectionTimeoutError: hour must be in 0..23, Timeout: 30s, Topology Description: <TopologyDescription id: 6080490c1fe900cc22d6b873, topology_type: Single, servers: [<ServerDescription ('localhost', 27017) server_type: Unknown, rtt: None, error=InvalidBSON('hour must be in 0..23')>]>

数据库（MongoClient（主机=['localhost:27017']，文档类=dict，tz\u aware=False，connect=False），'mydb'）
pymongo.errors.ServerSelectionTimeoutError:hour必须在0..23之内，超时时间：30s，拓扑描述：

场景#1简单MongoClient 我观察到的是，当我试图用简单的mongoclient构造函数连接db时，它给了我这个输出

数据库（mongoclient（host=['localhost:27017']，document\u class=dict，tz\u aware=False，connect=True）

其中connect为True

场景#2烧瓶应用程序 当我使用flask pymongo时，它的数据库连接构造函数给出了数据库（MongoClient（host=['localhost:27017']，document\u class=dict，tz\u aware=False，connect=False），'mydb'），其中connect是Flase

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我不知道这是什么意思，但认为它可能会带来一些帮助。提前谢谢，任何帮助都将不胜感激。如果需要任何额外的详细信息，请告诉我您的计算机上的文件

monitor.py

，该文件是pymongo的一部分。在该文件的第225行之后（异常作为错误除外）添加

raise

，发布结果。该文件可能位于哪个文件夹？如果没有，我建议从新数据库开始。我也尝试过，通过删除旧的虚拟环境解决了问题。Pycharm默认venv有问题，不知道是什么，但使用conda创建venv解决了问题

Database(MongoClient(host=['localhost:27017'], document_class=dict, tz_aware=False, connect=False), 'mydb')
pymongo.errors.ServerSelectionTimeoutError: hour must be in 0..23, Timeout: 30s, Topology Description: <TopologyDescription id: 6080490c1fe900cc22d6b873, topology_type: Single, servers: [<ServerDescription ('localhost', 27017) server_type: Unknown, rtt: None, error=InvalidBSON('hour must be in 0..23')>]>