[Python] How to save matplotlib violinplots with axes? Tried using fig.tight_layout() but the...

Thank you very much for helping out. I urgently need to solve this issue for my homework. My codes are as follows:

import matplotlib.pyplot as pltimport numpy as np


data_to_plot = [avg[0]['Cell Perimeter (unit pixel side)'], avg[1]['Cell Perimeter (unit pixel side)'], avg[2]['Cell Perimeter (unit pixel side)']]


fig = plt.figure()ax = fig.add_axes([0,0,1,1])


# Create the violinplot
bp = ax.violinplot(data_to_plot)
fig.tight_layout()
plt.xticks([1, 2, 3], ['5.5', '12.5', '25'])
plt.ylabel('Unit pixel side')
plt.xlabel('Glucose concentration (mM)')
plt.title('Cell perimeter axis distribution')
fig.savefig('Cell perimeter distrution.tiff')
plt.savefig('Cell perimeter distribution.jpg')
plt.show()


I tried adding fig.tight_layout(), but it is still not working, and gave me warning as follows:

UserWarning: This figure includes Axes that are not compatible with tight_layout, so results might be incorrect. fig.tight_layout()

I also tried fig.patch.set_facecolor('xkcd:white'), and it is not working.

Thank you very much for helping out.

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