Plot arrays against each other

[deanhystad]

This works fine for me:

import math
import numpy as np
import matplotlib.pyplot as plt

degrees = np.arange(0, 360, 1)
my_data = [math.sin(math.radians(deg)) for deg in degrees]

plt.plot(degrees, my_data)
plt.show()

Both my_data and degrees look like flat lists. My guess is csv_reader is returning something other than a flat list. What do you see when you print my_data?