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diff --git a/Lib/axisregistry/__init__.py b/Lib/axisregistry/__init__.py
index 2a5d551f7526fab3621ece8f4044665737e356f6..c8f9024ebcf0e422d515282e931d4c73afc29455 100644 (file)
--- a/Lib/axisregistry/__init__.py
+++ b/Lib/axisregistry/__init__.py
@@ -427,7 +427,9 @@ def build_fvar_instances(ttFont, axis_dflts={}):
 
             inst = NamedInstance()
             inst.subfamilyNameID = name_table.addName(name)
-            inst.postscriptNameID = name_table.addName(f"{family_name}-{name}".replace(" ", ""))
+            inst.postscriptNameID = name_table.addName(
+                f"{family_name}-{name}".replace(" ", "")
+            )
             inst.coordinates = coordinates
             log.debug(f"Adding fvar instance: {name}: {coordinates}")
             results.append(inst)