font_manager: Fixed problems with Path(...).suffix

Kojoley · Kojoley · commit 1148d94ccf7b · 2018-09-22T16:57:13.000+03:00
The problem is that `Path(...).suffix` includes the dot, so ``.ttf` in 'ttf'` gives `False`.
Also fixed other suffix usages.
diff --git a/lib/matplotlib/font_manager.py b/lib/matplotlib/font_manager.py
@@ -154,7 +154,7 @@ def list_fonts(directory, extensions):
     extensions = ["." + ext for ext in extensions]
     return [str(path)
             for path in filter(Path.is_file, Path(directory).glob("**/*.*"))
-            if path.suffix in extensions]
+            if path.suffix.lower() in extensions]
 
 
 def win32FontDirectory():
@@ -201,7 +201,7 @@ def win32InstalledFonts(directory=None, fontext='ttf'):
                     # is fixed in Py>=3.6.1.
                     direc = direc.split("\0", 1)[0]
                     path = Path(directory, direc).resolve()
-                    if path.suffix.lower() in fontext:
+                    if path.suffix.lower().split('.', 1)[-1] in fontext:
                         items.add(str(path))
                 return list(items)
         except (OSError, MemoryError):
@@ -242,7 +242,7 @@ def get_fontconfig_fonts(fontext='ttf'):
     """
     fontext = get_fontext_synonyms(fontext)
     return [fname for fname in _call_fc_list()
-            if Path(fname).suffix[1:] in fontext]
+            if Path(fname).suffix.lower().split('.', 1)[-1] in fontext]
 
 
 def findSystemFonts(fontpaths=None, fontext='ttf'):
