BUG : guard marker from sym parsing in bxp

tacaswell · tacaswell · commit 993781393801 · 2014-08-06T10:50:34.000-04:00
add a guard against `None` returned as `marker`
by `_process_plot_format(sym)`.
diff --git a/lib/matplotlib/axes/_axes.py b/lib/matplotlib/axes/_axes.py
@@ -3298,7 +3298,8 @@ def bxp(self, bxpstats, positions=None, widths=None, vert=True,
                 # process the symbol string
                 # discarded linestyle
                 _, marker, color = _process_plot_format(sym)
-                flierprops['marker'] = marker
+                if marker is not None:
+                    flierprops['marker'] = marker
                 if color is not None:
                     flierprops['color'] = color
                     # assume that if color is passed in the user want
