change color axis matplotlib code example

Example 1: change name of axis matplotlib

plt.xlabel('X axis')
plt.ylabel('Y axis')

Example 2: changing axis labels matplotlib

import matplotlib.pyplot as plt

fig, ax = plt.subplots()

labels = [item.get_text() for item in ax.get_xticklabels()]
labels[1] = 'Testing'

ax.set_xticklabels(labels)