COLOR VALUES IN MATPLOTLIB

Listing 5.3 displays the content of mat_colors.py that shows the colors that are available in Matplotlib.

LISTING 5.3: heatmap1.py

import matplotlib
import matplotlib.pyplot as plt

colors = plt.colormaps()

col_count=5
idx=0
for color in colors:
  if(color.endswith("_r") == False):
    print(color," ",end="")
    idx += 1
    if(idx % col_count == 0):
      print()
print()
print("=> color count:",idx)

Listing 5.3 contains two import statements, after which the variable colors are initialized with the list of available colors. The next portion of Listing 5.3 contains a loop that iterates through the colors variable, and prints the value of each color, provided that it does not have the suffix “_r” in its name. A new line is printed each time that five colors have been printed. Launch the code in Listing 5.3, and you will see the following output:

Accent  Blues  BrBG  BuGn  BuPu
CMRmap  Dark2  GnBu  Greens...