text: import matplotlib
  matplotlib.use('Agg')
  import matplotlib.pyplot as plt
  
  
  def make_pie_chart(suggestion_dict):
  # Pie chart, where the slices will be ordered and plotted counter-clockwise:
      labels = list(suggestion_dict.keys())
      sizes = list(suggestion_dict.values())
      
      fig1, ax1 = plt.subplots()
      ax1.pie(sizes, labels=labels, autopct='%1.1f%%',
              shadow=True, startangle=90)
      ax1.axis('equal')  # Equal aspect ratio ensures that pie is drawn as a circle.
  
      plt.savefig("./graphs/pie_chart.png")