Debug font cache on Travis.

anntzer · anntzer · commit 9b118baff62a · 2019-01-05T23:47:28.000+01:00
diff --git a/lib/matplotlib/font_manager.py b/lib/matplotlib/font_manager.py
@@ -1278,12 +1278,15 @@ def _rebuild():
 try:
     fontManager = json_load(_fmcache)
 except Exception:
+    print("Rebuilding font cache.")
     _rebuild()
 else:
     if getattr(fontManager, '_version', object()) != FontManager.__version__:
         _rebuild()
     else:
+        print("Reusing font cache.")
         _log.debug("Using fontManager instance from %s", _fmcache)
+json_dump(fontManager, sys.stdout)
 
 
 findfont = fontManager.findfont
