Delete Document
To delete one document, we use the delete_one() method.
The first parameter of the delete_one() method is a query object defining which document to delete.
Note
If the query finds more than one document, only the first occurrence is deleted.
Example
Delete the document with the address "Mountain 21":
import pymongo
myclient = pymongo.MongoClient("mongodb://localhost:27017/")
mydb = myclient["mydatabase"]
mycol = mydb["customers"]
myquery = { "address": "Mountain 21" }
mycol.delete_one(myquery)Delete Many Documents
To delete more than one document, use the delete_many() method.
The first parameter of the delete_many() method is a query object defining which documents to delete.
Example
Delete all documents were the address starts with the letter S:
import pymongo
myclient = pymongo.MongoClient("mongodb://localhost:27017/")
mydb = myclient["mydatabase"]
mycol = mydb["customers"]
myquery = { "address": {"$regex": "^S"} }
x = mycol.delete_many(myquery)
print(x.deleted_count, " documents
deleted.")Delete All Documents in a Collection
To delete all documents in a collection, pass an empty query object to the delete_many() method:
Example
Delete all documents in the "customers" collection:
import pymongo
myclient = pymongo.MongoClient("mongodb://localhost:27017/")
mydb = myclient["mydatabase"]
mycol = mydb["customers"]
x = mycol.delete_many({})
print(x.deleted_count, " documents
deleted.")