SQLite 3 python

I am using Sqlite to show who's address is school. This works and creates a table, however the next time the code is run it prints the table from last time as well so in this case where 3 people 'live' at school the first time it prints 3 people, the next time it is run it prints each name twice (total of 6) and so on. How would I change this code so that only one table is created and nothing is added to it each time I run the code. (In this case I want the result always to only have 3 lines).

import sqlite3 

conn = sqlite3.connect('dbtest.db') 
c = conn.cursor() 

param = "School" 


def create_table():
    c.execute('CREATE TABLE IF NOT EXISTS myTestTable(name TEXT, age REAL, address TEXT)')

def data_entry():
    c.execute("INSERT INTO myTestTable VALUES('James', 45, 'School')") 
    c.execute("INSERT INTO myTestTable VALUES('Jack', 15, 'School')")
    c.execute("INSERT INTO myTestTable VALUES('Jeff', 14, 'Home')")
    c.execute("INSERT INTO myTestTable VALUES('Bob', 14, 'School')")
    conn.commit() 

def query1():
    c.execute("SELECT * FROM myTestTable WHERE address = ?",(param,))  
    while True:
        row=c.fetchone()
        if row == None:
            break
        print(row) 

    c.close()
    conn.close()

create_table()

data_entry()

query1()