title: Python psycopg2 not inserting into postgresql table
body: <p>I'm using the following to try and insert a record into a postgresql database table, but it's not working. I don't get any errors, but there are no records in the table. Do I need a commit or something? I'm using the postgresql database that was installed with the Bitnami djangostack install.</p>
  
  <pre><code>import psycopg2
  
  try:
      conn = psycopg2.connect("dbname='djangostack' user='bitnami' host='localhost' password='password'")
  except:
      print "Cannot connect to db"
  
  cur = conn.cursor()
  
  try:
      cur.execute("""insert into cnet values ('r', 's', 'e', 'c', 'w', 's', 'i', 'd', 't')""")
  except:
      print "Cannot insert"
  </code></pre>