import psycopg2, json
conn = psycopg2.connect("dbname=dbname user=user password=pass")
cr = conn.cursor()
filename = "linkedin.json"
file = open(filename, 'r')
for line in file:
    string_query = """('%s')""" % (str(line).replace("'", ""))
    query = """
        INSERT INTO linkedin (info)
        VALUES %s;
        """ % (string_query)
    cr.execute(query)
    conn.commit()