created _repr_html_ for FontEntry objects

Author: ambi7

lib/matplotlib/font_manager.py

@@ -395,7 +395,10 @@ def findSystemFonts(fontpaths=None, fontext='ttf'):
     A class for storing Font properties.
 
     It is used when populating the font lookup dictionary.
-    """})
+    """,
+        '_repr_html_': lambda self: f"<span style='font-family:{self.name}'>{self.name}</span>",  # noqa: E501
+    }
+)
 
 
 def ttfFontProperty(font):

lib/matplotlib/tests/test_font_manager.py

@@ -11,7 +11,7 @@
 import pytest
 
 from matplotlib.font_manager import (
-    findfont, findSystemFonts, FontProperties, fontManager, json_dump,
+    findfont, findSystemFonts, FontEntry, FontProperties, fontManager, json_dump,
     json_load, get_font, is_opentype_cff_font, MSUserFontDirectories,
     _get_fontconfig_fonts)
 from matplotlib import pyplot as plt, rc_context
@@ -266,3 +266,10 @@ def test_fontcache_thread_safe():
     if proc.returncode:
         pytest.fail("The subprocess returned with non-zero exit status "
                     f"{proc.returncode}.")
+
+
+def test_fontentry_dataclass():
+    entry = FontEntry(name="font-name")
+
+    assert type(entry.__doc__) == str
+    assert entry._repr_html_() == "<span style='font-family:font-name'>font-name</span>"