Use FontsInterface for agg backend

aitikgupta · aitikgupta · commit 4f0b971f5f4b · 2021-06-30T14:19:40.000+05:30
diff --git a/lib/matplotlib/backends/backend_agg.py b/lib/matplotlib/backends/backend_agg.py
@@ -35,7 +35,7 @@
 from matplotlib.backend_bases import (
     _Backend, _check_savefig_extra_args, FigureCanvasBase, FigureManagerBase,
     RendererBase)
-from matplotlib.font_manager import findfont, get_font
+from matplotlib.font_manager import get_font, find_fontsprop
 from matplotlib.ft2font import (LOAD_FORCE_AUTOHINT, LOAD_NO_HINTING,
                                 LOAD_DEFAULT, LOAD_NO_AUTOHINT)
 from matplotlib.mathtext import MathTextParser
@@ -251,8 +251,8 @@ def _get_agg_font(self, prop):
         """
         Get the font for text instance t, caching for efficiency
         """
-        fname = findfont(prop)
-        font = get_font(fname)
+        finterface = find_fontsprop(prop)
+        font = get_font(finterface)
 
         font.clear()
         size = prop.get_size_in_points()
