helloworld.py
"""
Example
=================================
One-line description
"""
import matplotlib.pyplot as plt
import numpy as np
x = 'hello_world'
########################################
# This is rendered text, and will break apart a notebook cell
y = 'foo'
print(x)
plt.plot(np.random.rand(100), np.random.rand(100), 'b.')
plt.show()