Hide axis values but keep axis tick labels in matplotlib

Question

I have this image:

plt.plot(sim_1[\'t\'],sim_1[\'V\'],\'k\')
plt.ylabel(\'V\')
plt.xlabel(\'t\')
plt.show()

I want to hide the numbers

Answer 1

to remove tickmarks entirely use:

ax.set_yticks([])
ax.set_xticks([])

otherwise ax.set_yticklabels([]) and ax.set_xticklabels([]) will keep tickmarks.