python
from pymongo import MongoClient
client = MongoClient("mongodb://localhost:27017/")
database = client["mydatabase"]
collection = database["mycollection"]
document = {"name": "John", "age": 25}
collection.insert_one(document)
result = collection.find_one({"name": "John"})
print(result)
collection.update_one({"name": "John"}, {"$set": {"age": 26}})
collection.delete_one({"name": "John"})
client.close()
