如何保存在matplotlib.pyplot中显示的图？

Question

I'm using matplotlib.pyplot to draw a bar chart with a legend, the figure saved by plt.savefig() is incomplete compared to plt.show() . To be more precise, the legend is out of the plot, the jpg file only have the leftside half of the legend.

My codes:

from matplotlib import pyplot as plt
fig = plt.figure(figsize=(12,6))
plt.bar(x, y, label="a")
plt.legend(bbox_to_anchor=(1.02, 1), loc="upper left")
plt.show()
fig.savefig("a.jpeg")

I looked through this answer Matplotlib savefig with a legend outside the plot but the chosen answer suggest to adjust the axis manually. I have many different figures so that may be inappropriate. Since it was posted years ago, I wonder whether any automatic method could be used to make the effect of plt.savefig() as plt.show() ? I couldn't find any appropriate argument for that in plt.savefig() .

Thanks!

Answer 1

希望这能解决问题。在参数中添加bbox_inches='tight'有助于消除空格

 fig.savefig('a.jpeg', bbox_inches='tight', pad_inches=0)