import numpy as np 
import matplotlib.pyplot as plt 
from matplotlib import gridspec 
x = np.arange(0, 10, 0.2) 
y = np.sin(x) 
fig = plt.figure(figsize=(8, 6)) 
gs = gridspec.GridSpec(1, 2, width_ratios=[3, 1]) 
ax0 = plt.subplot(gs[0]) 
ax0.plot(x, y) 
ax1 = plt.subplot(gs[1]) 
ax1.plot(y, x) 
plt.tight_layout() 
plt.savefig(‘grid_figure.pdf')