Retrieving a single record using PyMongo
Retrieving a single record is a common operation in any system with the CRUD (Create Read Update Delete) functionality.
Getting ready
PyMongo has a method that allows us to easily query a single record using zero or more criteria: find_one().
How to do it…
from pymongo import MongoClient
client = MongoClient('localhost', 27017)
db = client.pythonbicookbook
accidents = db.accidents
# Find the first document in the collection
accidents.find_one()
# Find the first document in the collection where the accident happened on a Sunday
accidents.find_one({"Day_of_Week": 1})How it works…
The find_one() method returns a single document—the first one it finds—based on the criteria provided. If there are multiple records ...
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