import matplotlib.plt
fig = plt.figure()
size = fig.get_size_inches()*fig.dpi # size in pixels
To do it for the current figure,
fig = plt.gcf()
size = fig.get_size_inches()*fig.dpi # size in pixels
You can get the same info by doing:
bbox = fig.get_window_extent().transformed(fig.dpi_scale_trans.inverted())
width, height = bbox.width*fig.dpi, bbox.height*fig.dpi
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…