[Matplotlib-users] open circles aren't showing up in the legend box

[Joe L. <jgl...@gm...>]

Using matplotlib.pyplot I create a scatter plot using two symbols, an open
circle, and a filled circle.  The legend for this plot shows both labels,
but there is no symbol for the open circles (see
missing_legend_circles.png).  Switching to matplotlib.pylab yields the same
result.  However, from an "ipython --pylab" session the open circles are
displayed in the legend.  This has me more baffled than usual.  Here's the
code to reproduce the enclosed figure:

import matplotlib.pyplot as plt

fig = plt.figure()
plot = fig.add_subplot(111)

plot.scatter([1, 2, 3], [4, 5, 6], c = [0.2, 0.4, 0.6], label = 'one',
     cmap = 'jet', marker = 'o', edgecolor = 'face')

plot.scatter([1, 2, 3], [7, 6, 5], c = [0.2, 0.4, 0.6], label = 'two',
              cmap = 'jet', marker = 'o', edgecolor = 'face',
      facecolor = 'none')
plot.legend()
plt.show()


This is with matplotlib 1.1 and 1.2 on Windows 7 with the TkAgg, WxAgg and
WX backends.

Thank you for any help.

-- Joe Louderback