Fixed indentation.

setup.py

@@ -14,13 +14,13 @@ try:
 except ImportError:
     from distutils.core import setup
 try:
-   from distutils.command.build_py import build_py_2to3 \
+    from distutils.command.build_py import build_py_2to3 \
         as build_py
-   from distutils.command.build_scripts import build_scripts_2to3 \
+    from distutils.command.build_scripts import build_scripts_2to3 \
         as build_scripts
 except ImportError:
-   from distutils.command.build_py import build_py
-   from distutils.command.build_scripts import build_scripts
+    from distutils.command.build_py import build_py
+    from distutils.command.build_scripts import build_scripts
 
 
 CLASSIFIERS = """\