update to new way of warning after rebase

kbrose · kbrose · commit 504f61916d07 · 2018-11-14T18:51:03.000-06:00
diff --git a/lib/matplotlib/legend.py b/lib/matplotlib/legend.py
@@ -1117,7 +1117,7 @@ def _find_best_position(self, width, height, renderer, consider=None):
         verts, bboxes, lines, offsets = self._auto_legend_data()
         if self._loc_used_default and verts.shape[0] > 200000:
             # this size results in a 3+ second render time on a good machine
-            warnings.warn(
+            cbook._warn_external(
                 'Creating legend with loc="best" can be slow with large'
                 ' amounts of data.'
             )

Original file line number	Diff line number	Diff line change
`@@ -1117,7 +1117,7 @@ def _find_best_position(self, width, height, renderer, consider=None):`
`1117`	`1117`	`verts, bboxes, lines, offsets = self._auto_legend_data()`
`1118`	`1118`	`if self._loc_used_default and verts.shape[0] > 200000:`
`1119`	`1119`	`# this size results in a 3+ second render time on a good machine`
`1120`		`- warnings.warn(`
	`1120`	`+ cbook._warn_external(`
`1121`	`1121`	`'Creating legend with loc="best" can be slow with large'`
`1122`	`1122`	`' amounts of data.'`
`1123`	`1123`	`)`