python
from pymongo import MongoClient
client = MongoClient("mongodb://localhost:27017/")
db = client["mydatabase"]
collection = db["mycollection"]
data = {"name": "John", "age": 28}
collection.insert_one(data)
result = collection.find({"name": "John"})
for document in result:
print(document)
collection.update_one({"name": "John"}, {"$set": {"age": 30}})
collection.delete_one({"name": "John"})
client.close()
