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Python and sqlite trouble

I can't show the data from database sqlite in python.

connection = sqlite3.connect('db')
connection.cursor().execute('CREATE TABLE IF NOT EXISTS users ( \
 id TEXT, \
 name TEXT, \
 avatar TEXT \
 )')
# In cycle:
query = 'INSERT INTO users VALUES ("' + str(friend.id) + '", "' + friend.name + '", "' + friend.avatar +'" )'
print query
connection.cursor().execute(query)
connection.commit()
# After cycle
print connection.cursor().fetchall()

Sample output of query variable:

INSERT INTO users VALUES ("111", "Some Name", "http://avatar/path" )

In result, fetchall returns empty tuple. Why?

UPD Forgotten code:

connection.cursor().execute('SELECT * FROM users')
connection.cursor().fetchall()

→ []

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