fixup windows setup.py

setup.py

@@ -17,17 +17,17 @@ def initialize_options(self):
         super().initialize_options()
         self.parallel = cpu_count()
 
-        # if sys.platform == "win32":
-        #     # Cython currently has a bug in its code that results in symbol collision on Windows
-        #     def get_export_symbols(self, ext):
-        #         parts = ext.name.split(".")
-        #         initfunc_name = "PyInit_" + parts[-2] if parts[-1] == "__init__" else parts[-1] # noqa: F841
-
-        #     # Override function in Cython to fix symbol collision
-        #     build_ext.get_export_symbols = get_export_symbols
-        #     thread_count = 0 # Disables multiprocessing (windows)
-        # else:
-        thread_count = cpu_count()
+        if sys.platform == "win32":
+            # # Cython currently has a bug in its code that results in symbol collision on Windows
+            # def get_export_symbols(self, ext):
+            #     parts = ext.name.split(".")
+            #     initfunc_name = "PyInit_" + parts[-2] if parts[-1] == "__init__" else parts[-1] # noqa: F841
+
+            # # Override function in Cython to fix symbol collision
+            # build_ext.get_export_symbols = get_export_symbols
+            thread_count = 0 # Disables multiprocessing (windows)
+        else:
+            thread_count = cpu_count()
 
         # Fixing issue with nthreads in Cython
         if (3,