Suggestion: use 'var in tuple' instead of chained comparisons.

Author: DWesl

setup.py

@@ -887,9 +887,7 @@ def build_extensions(self):
         else:
             self._remove_extension("PIL._webp")
 
-        tk_libs = (
-            ["psapi"] if (sys.platform == "win32" or sys.platform == "cygwin") else []
-        )
+        tk_libs = ["psapi"] if sys.platform in ("win32", "cygwin") else []
         self._update_extension("PIL._imagingtk", tk_libs)
 
         build_ext.build_extensions(self)