Matplotlib: show labels for minor ticks also

Question

In matplotlib, when I use a log scale on one axis, it might happen that that axis will have no major ticks, only minor

Answer 1

You can use set_minor_tickformatter on the corresponding axis:

from matplotlib import pyplot as plt
from matplotlib.ticker import FormatStrFormatter

axes = plt.subplot(111)
axes.loglog([3,4,7], [2,3,4])
axes.xaxis.set_minor_formatter(FormatStrFormatter("%.2f"))
plt.xlim(1.8, 9.2)
plt.show()