print graph of trigonometric functionn

import matplotlib.pyplot as plt 
import numpy  as np
from numpy import sin,cos,sqrt,pi,tan

x=[]
y=[]

num=0
while num< 6*np.pi:
y.append(sin(num))
x.append(num)
num+=0.01

pass
plt.ylabel('sin value')
plt.xlabel('angle in radians')
plt.plot(x,y)
plt.show()