nogil extension ammending

nogil_test/nogil_extension_test.py

@@ -2,13 +2,11 @@ from distutils.core import setup
 from distutils.extension import Extension
 from Cython.Build import cythonize
 
-ext_modules = [
+setup(
+    ext_modules = cythonize([
         Extension(
             'nogil_extension',
             ['nogil_extension.pyx'],
-    )
-]
-
-setup(
-    ext_modules = cythonize(ext_modules)
+        ),
+    ])
 )