using_find_with_selector.py

from pymongo import MongoClient
import sys

client = MongoClient('localhost', 27017)

db = client.school
score = db.score	

def find():
	print "command find with selector"
	query = {'type': 'exam'}
	selector = {'student_id': 1, '_id': 0} #mostra nel risultato il campo student_id e nasconde il campo _id
	try:
		cursor = score.find(query, selector)
	except:
		print "Unexpected error", sys.exc_info()[0]
	limit = 0
	for doc in cursor:
		print doc
		limit += 1
		if (limit > 10):
			break