import os , string , datetime ,pymongo;

conn = pymongo.Connection("127.0.0.1",27017);

db = conn.nn;

coll = db.nn_res;

value = dict(name="user1",num="");

coll.save(value);

coll.insert(value);

db.collection.save(document)

Updates an existing document or inserts a new document, depending on its document parameter.

The save() method takes the following parameter:

    Parameter     Type     Description

    document     document     A document to save to the collection.

    If the document does not contain an _id field, then the save() method performs an insert. During the operation, mongod will add to the document the _id field and assign it a unique ObjectId.

    If the document contains an _id field, then the save() method performs an upsert, querying the collection on the _id field. If a document does not exist with the specified _id value, the save() method performs an insert. If a document exists with the specified _id value, the save() method performs an update that replaces all fields in the existing document with the fields from the document.

import os , string , datetime ,pymongo;

conn = pymongo.Connection("127.0.0.1",27017);

db = conn.nn;

coll = db.nn_res;

value1 = dict(name="user1",num="");

value2 = dict(name="user1",num="");

coll.save(value1);

coll.insert(value2);

import os , string , datetime ,pymongo;

conn = pymongo.Connection("127.0.0.1",27017);

db = conn.nn;

coll = db.nn_res;

coll.save({"name":"user1","num":""});

coll.insert({"name":"user1","num":""});