Matplotlib: How to adjust linewidth in colorbar for contour plot?

Question

Here\'s a minimal example to generate a plot which illustrates my question:

import matplotlib.pylab as plt
import matplotlib.mpl as mpl
import numpy as np
         


        

Answer 1

Use Axes.tick_params. As you use CB as the handle to the colorbar, the linewidth in colorbar can be set by:

CB.ax.tick_params(size = your_size, width = your_width)

size is the length of ticklines in the colorbar. width is the linewidth.