import numpy as np
import matplotlib.pyplot as plt
%matplotlib inline
from ipywidgets import StaticInteract, RangeWidget

x = np.linspace(-1,1,201)
t = np.linspace(0,1,201)
#print x,t 

plt.plot(np.sin(x)*np.sin(np.pi/6))

def plot(t):
    fig, ax = plt.subplots(figsize=(4, 3),
                           subplot_kw={'axisbg':'#EEEEEE',
                                       'axisbelow':True})
    ax.grid(color='w', linewidth=2, linestyle='solid')
    x = np.linspace(-1, 1, 201)
    ax.plot(x,np.sin(x)*np.sin(t),lw=5, alpha=0.4)
    return fig

StaticInteract(plot,t=RangeWidget(np.pi/6,np.pi,np.pi/6))