Using Databases with Python - Many students in many courses (produce database from json file)

This application will read roster data in JSON format, parse the file, and then produce an SQLite database that contains a User, Course, and Member table and populate the tables from the data file.
Download
this file and save it as roster_data.json. Move the downloaded file into the same folder as your
roster.py program.
Once you have made the necessary changes to the program and it has been run successfully reading the above JSON data, run the following SQL command:
SELECT hex(User.name || Course.title || Member.role ) AS X FROM
User JOIN Member JOIN Course
ON User.id = Member.user_id AND Member.course_id = Course.id
ORDER BY X

Find the first row in the resulting record set and enter the long string that looks like
53656C696E613333.

import json
import sqlite3
#connects to database, creates a sqlite file
conn = sqlite3.connect('rosterdb.sqlite')
cur = conn.cursor()

# Do some setup
cur.executescript('''
DROP TABLE IF EXISTS User;
DROP TABLE IF EXISTS Member;
DROP TABLE IF EXISTS Course;

CREATE TABLE User (
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT UNIQUE,
name TEXT UNIQUE
);

CREATE TABLE Course (
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT UNIQUE,
title TEXT UNIQUE
);

CREATE TABLE Member (
user_id INTEGER,
course_id INTEGER,
role INTEGER,
PRIMARY KEY (user_id, course_id)
)
''')

fname = raw_input('Enter file name: ') #<span style="font-family: Arial, Helvetica, sans-serif;">fname = 'roster_data.json'</span>
if ( len(fname) < 1 ) : fname = 'roster_data.json'

str_data = open(fname).read()
json_data = json.loads(str_data)

for entry in json_data:

name = entry[0];
title = entry[1];
role = entry[2];

print name, title, role

cur.execute('''INSERT OR IGNORE INTO User (name)
VALUES ( ? )''', ( name, ) )
cur.execute('SELECT id FROM User WHERE name = ? ', (name, ))
user_id = cur.fetchone()[0]

cur.execute('''INSERT OR IGNORE INTO Course (title)
VALUES ( ? )''', ( title, ) )
cur.execute('SELECT id FROM Course WHERE title = ? ', (title, ))
course_id = cur.fetchone()[0]

cur.execute('''INSERT OR REPLACE INTO Member
(user_id, course_id, role) VALUES ( ?, ?, ?)''',
( user_id, course_id, role ) )

conn.commit()

cur.execute('''
SELECT hex(User.name || Course.title || Member.role ) AS X FROM
User JOIN Member JOIN Course
ON User.id = Member.user_id AND Member.course_id = Course.id
ORDER BY X''')