I think the answer is given elsewhere on stackoverflow.
Briefly, you should chane the fontsize of your label-text:
plt.ylabel('Example', fontsize=40)
plt.xlabel('Example', fontsize=40)
Of course, change the number 40 (trial and error) to a more suitable value.
I don't know if this is a fix or a work-around.
And neither do I know if this helps.
