more code cleanups

Cython/Build/Dependencies.py

@@ -673,13 +673,14 @@ def cythonize(module_list, exclude=[], nthreads=0, aliases=None, quiet=False, fo
     for m in module_list:
         if build_dir:
             root = os.path.realpath(os.path.abspath(m.name.split('.')[0]))
-            def copy_to_build_dir(file):
-                if os.path.realpath(os.path.abspath(file)).startswith(root):
-                    dir = os.path.join(
-                        build_dir, os.path.dirname(_relpath(file)))
-                    if not os.path.isdir(dir):
-                        os.makedirs(dir)
-                    shutil.copy(file, dir)
+            def copy_to_build_dir(filepath, root=root):
+                filepath = os.path.abspath(filepath)
+                if os.path.realpath(filepath).startswith(root):
+                    mod_dir = os.path.join(
+                        build_dir, os.path.dirname(_relpath(filepath)))
+                    if not os.path.isdir(mod_dir):
+                        os.makedirs(mod_dir)
+                    shutil.copy(filepath, mod_dir)
             for dep in m.depends:
                 copy_to_build_dir(dep)