CODE EXAMPLE FOR PYTHON

Donut chart graphing funciton

def pie_chart_single(labels, sizes, colors):

  textprops = {"fontsize":16}
  wedgeprops = {'linewidth': 4, "edgecolor": "w"} #creates white lines around each wedge

  plt.pie(sizes, colors = colors, labels = labels, autopct = '%1.1f%%', #display numbers to 1 decimal point
        startangle=90, pctdistance = 0.5, textprops = textprops, wedgeprops = wedgeprops)
  
  centre_circle = plt.Circle((0,0),0.6,fc='white')  #draw white circle at center to create donut chart
  plt.gcf().gca().add_artist(centre_circle)  #gcf: get current figure, gca: get current axis
  
  plt.axis('equal')  # Equal aspect ratio ensures that pie is drawn as a circle
  plt.tight_layout()
  plt.show()