[Matplotlib-users] mpl_toolkits.axes_grid.Grid: How to draw an " axis grid" inside each plot?

[Cesar E. G. D. <cg...@es...>]

 Hi!
 
 I am using mpl_toolkits.axes_grid.Grid to plot for plots together using the 
following code inspired in a matlotlib example:

import matplotlib.pyplot as plt
from mpl_toolkits.axes_grid import Grid
import numpy as np

im = np.arange(0,3, 0.01)

fig = plt.figure(1, (8., 8.))
grid = Grid(fig, 111,  nrows_ncols = (2, 2))

for i in range(4):
    grid[i].plot(im, np.sin(im))
    grid[i].grid(True)

plt.show()

 It works "almost" fine, except for the line
    grid[i].grid(True)
 which doesn't draw the axis grid defined by the ticklabels. When using 
add_subplot instead of Grid it works properly, tough, like this:

import matplotlib.pyplot as plt
from mpl_toolkits.axes_grid import Grid
import numpy as np

im = np.arange(0,3, 0.01)

fig = plt.figure(1, (8., 8.))
subplot = fig.add_subplot(111)

subplot.plot(im, np.sin(im))
subplot.grid(True)

plt.show()

 How is it possible to get the same result within each grid[i]?

 Thank you very much in advance!
 Enrique