def test():
	dbcli = getCliInstance()
	# dbcli.insertDomain('jaysonhwang.com')
	# dbcli.insertRuleset('test','jaysonhwang.com')
	print dbcli.robotsrulesetOfDomain('www.zol.com')
	print dbcli.robotsrulesetOfDomain('jayson.com')
	dbcli.showAll()
	dbcli.close()
def voltage(title, pos, voltage, ax=0):
    """plot voltage vs. position"""
    if ax == 0:
        ax = plt.gca()
    ax.set_title('{} / V'.format(title))
    ax.grid(True)
    ax.plot(pos, voltage)