db = pymysql.connect('server_address', 'username', 'password', 'database_name')
cursor = db.cursor()
with open('data.txt', 'r') as f:
for line in f:
value_list = list(map(lambda x: "'%s'" % x, line.split()))
cursor.execute('INSERT INTO table_name VALUES(%s)' % ','.join(value_list))
db.commit()
db.close()