Add to this the code for generating a grid on the chart, as well as specifying the percentage difference directly on the chart bars plt.figure(figsize = (12, 4)) plt.bar(data.index, data['nutri'], color = 'darkblue', label = 'nutri') plt.bar(data.index, data['mineral'], color = 'brown', label = 'mineral')

def add_stuff(a, b):
  return a + b
  
add_stuff(1, 2)

def foo(x):
  return x**2
  
x = range(5)

list(x)