Pymongo find and find_one

using_find.py

from pymongo import MongoClient
import sys

client = MongoClient('localhost', 27017)

db = client.school
score = db.score	

def find_one():
	print "command find_one"
	query = {'student_id': 10}
	try:
		doc = score.find_one(query)
	except:
		print "Unexpected error", sys.exc_info()[0]
	print doc

def find():
	print "command find"
	query = {'type': 'exam'}
	try:
		cursor = score.find(query)
	except:
		print "Unexpected error", sys.exc_info()[0]
	limit = 0
	for doc in cursor:
		print doc
		limit += 1
		if (limit > 10):
			break