import pandas as pd
from pylab import * 


x_values = arange(0.0, math.pi * 4, 0.01)  
y_values = sin(x_values) 
plot(x_values, y_values, linewidth=1.0) 
xlabel('x')  
ylabel('sin(x)')  
title('Simple plot')  
grid(True)
savefig("sin.png") 
show()