How to select ticks at n-positions in the log chart?

Question

In matplotlib, once the main ticks are too close to each other on the chart loglog. Instead of installing them manually, is it possible to use something similar MaxNLocatorto setting ticks at n-places in the log scale?

import numpy as np
import pylab as p

x=np.logspace(1,20,10)

fig=p.figure()
ax1=fig.add_subplot(121)
ax1.loglog(x,x,'o')
ax2=fig.add_subplot(122)
ax2.loglog(x,x,'o')
fig.show()

Answer 1

For each axis, you can set LogLocator :

ax.xaxis.set_major_locator(ticker.LogLocator(base = 1000.0))

Answer 2

In the latest version of matplotlib (1.2.0), to get something more like MaxNLocator you can also use @unutbu's solution with

ax.xaxis.set_major_locator(ticker.LogLocator(numticks=6))