Subplot can split the figure in nrow*ncols parts and plt.xticks could help to plot the xticks for subplots.
Steps
Create two lists for line 1 and line 2.
Add a subplot to the current figure, nrow = 1, ncols = 2 and index = 1.
Draw line 1 with style as dashed.
Set or retrieve auto scaling margins(0.2).
Place xticks at even places.
Set a title for the X-axis.
Add a subplot to the current figure, nrow = 1, ncols = 2 and index = 2.
Plot line 2.
Set or retrieve auto scaling margins(0.2).
Place xticks at odd places.
Set a title for the X-axis.
To show the figure use plt.show() method.
Example
import matplotlib.pyplot as plt
line1 = [21, 14, 81]
line2 = [31, 6, 12]
plt.subplot(121)
plt.plot(line1, linestyle='dashed')
plt.margins(0.2)
plt.xticks([2, 4, 6, 8, 10])
plt.title("x-ticks at even places")
plt.subplot(122)
plt.plot(line2)
plt.margins(0.2)
plt.xticks([1, 3, 5, 7, 9])
plt.title("x-ticks at odd places")
plt.show()Output
