Sine Wave around a circle

"""
#python 2.x
"""
import numpy as np
import math
import matplotlib.pyplot as plt



class Point:
    def __init__(self, x=0, y=0):
        self.x = x
        self.y = y
    
def sineAroundCircle( cx, cy, radius, amplitude, angle, frequency):
        p = Point()
        p.x = cx+(radius+amplitude*np.sin(frequency*angle))*np.cos(angle)
        p.y = cy+(radius+amplitude*np.sin(frequency*angle))*np.sin(angle)
        return p

cx=150
cy=150
radius=100
amp=10
frequency=40
pt= Point()

fig, ax = plt.subplots()

for i in range(1,360):
  angle = i * math.pi/180
  pt = sineAroundCircle(cx,cy,radius,amp,angle,frequency)
  line1, = ax.plot(pt.x, pt.y, 'o')

frequency=10
radius=50
for i in range(1,360):
  angle = i * math.pi/180
  pt = sineAroundCircle(cx,cy,radius,amp,angle,frequency)
  line2, = ax.plot(pt.x, pt.y, 'o')

  
plt.show()