old_contents: import numpy as np
  import pandas as pd
  import matplotlib_venn
  import matplotlib.pyplot as plt
  import brewer2mpl
  import itertools
  
  set1 = brewer2mpl.get_map('Set1', 'qualitative', 9).mpl_colors
  red = set1[0]
  blue = set1[1]
  green = set1[2]
  purple = set1[3]
  orange = set1[4]
  yellow = set1[5]
  brown = set1[6]
  pink = set1[7]
  grey = set1[8]
new_contents: import numpy as np
  import pandas as pd
  import matplotlib_venn
  import matplotlib.pyplot as plt
  import brewer2mpl
  import itertools
  import seaborn as sns
  import collections
  import itertools
  
  set1 = brewer2mpl.get_map('Set1', 'qualitative', 9).mpl_colors
  red = set1[0]
  blue = set1[1]
  green = set1[2]
  purple = set1[3]
  orange = set1[4]
  yellow = set1[5]
  brown = set1[6]
  pink = set1[7]
  grey = set1[8]
subject: Add seaborn, collections, itertools to IPython imports