line 713, in find_one for result in cursor.limit(-1): File "/usr/local/lib/python2.7/dist-packages/pymongo/cursor.py", line 1038, in next if len(self.__data) or self._refresh(): File "/usr/
self.__check_okay_to_chain() self.__empty = False self.__limit = limit return self find 的返回结果 cursor 对象 cursor 对象 可以通过collection.find() 来返回一个 cursor 对象 cursor对象 可以实现了切片协议, 因此可以使用 切片操作. cursor.count() 方法 可以查询 查询了多少 文档,返回文档总数. #...
Learn how to perform regex queries using PyMongo to enhance your MongoDB data retrieval with pattern matching capabilities.
print("Employee ID:", emp_id) output = list(emp.find_one({'emp_id': emp_id})) print("Output:", output) if request.method == 'POST': if not request.form.get['emp_id'] or not request.form.get['first_name'] or not request.form.get['last_name'] \ or not request.form.get...
PyMongo provides the find_one() and find() methods to find a single document from a collection: Thefind_one() methodwill return the first document according to the given conditions. Thefind() methodwill return a Cursor object, which is an iterable object that contains additional helper methods...
An instance of MongoClient can be configured to automatically connect to a different mongos if the instance it is currently connected to fails. If a failure occurs, PyMongo will attempt to find the nearest mongos to perform subsequent operations. As with a replica set this can’t happen compl...
PYTHON-1362- Add find/aggregate_raw_batches() Aug 13, 2017 36 frompymongo.cursorimportCursor,RawBatchCursor PYTHON-1320Remove legacy CRUD methods (#556) Jan 23, 2021 37 frompymongo.errorsimport(ConfigurationError, PYTHON-1339Generate a single message in _do_batched_write_command. ...
176 is performed. Returns the _id of the saved document.minor: doc Aug 14, 2009 177 just check for subclass of dict, not (SON, dict). SON is now a subcla… Feb 4, 2009 178 Raises TypeError if to_save is not an instance of dict. If `safe` doc...
An instance of MongoClient can be configured to automatically connect to a different mongos if the instance it is currently connected to fails. If a failure occurs, PyMongo will attempt to find the nearest mongos to perform subsequent operations. As with a replica set this can’t happen compl...