Python code fail to insert real value

import sqlite3
import random

conn = sqlite3.connect("originial.db")
c = conn.cursor()

conn.execute("CREATE TABLE Pressure(value REAL);")
for i in range(0,100000):
    print round(random.uniform(10.0, 25.0),2)
    conn.execute("INSERT INTO Pressure VALUES(?);", round(random.uniform(10.0, 25.0),2))

c.close()
conn.close()

http://stackoverflow.com/questions/11853167/parameter-unsupported-when-inserting-int-in-sqlite

See also commit() in https://docs.python.org/2/library/sqlite3.html