Connecting to a MongoDB database from a Python script

Now that we have pymongo setup, we will connect to the MongoDB database (mydb) from a python script. The source of the script is from the "MongoDB and Python Patterns and processes for the popular document-oriented database By Niall O'Higgins"

#!/usr/bin/python import sys from pymongo import Connection from pymongo.errors import ConnectionFailure def main():     """ Connect to MongoDB """     try:         c = Connection(host="localhost", port=27017)         print ("Connected successfully")     except ConnectionFailure, e:         sys.stderr.write("Could not connect to MongoDB: %s" % e)         sys.exit(1)     # Get a Database handle to a database named "mydb"     dbh = c["mydb"]             # Demonstrate the db.connection property to retrieve a reference to the     # Connection object should it go out of scope. In most cases, keeping a     # reference to the Database object for the lifetime of your program should     # be sufficient.     assert dbh.connection == c     print "Successfully set up a database handle" if __name__ == "__main__":     main()

Output on executing the script test.py
Here is what I did to install the pymongo module on my system.

[root@isvx7 ~]# ./test.py Connected successfully Successfully set up a database handle

Message on the mongod console:

Thu Nov  7 12:48:56 [initandlisten] connection accepted from 127.0.0.1:33804 #4 (1 connection now open) Thu Nov  7 12:48:56 [conn4] end connection 127.0.0.1:33804 (0 connections now open)