chore: setup.py for python3

setup.py

@@ -25,7 +25,8 @@ __docformat__ = "restructuredtext en"
 import os
 import sys
 import shutil
-from os.path import isdir, exists, join, walk, dirname
+from os import walk
+from os.path import isdir, exists, join, dirname
 
 try:
     if os.environ.get('NO_SETUPTOOLS'):
@@ -74,7 +75,7 @@ if USE_SETUPTOOLS:
     for entry in ("__depends__",): # "__recommends__"):
         requires.update(pkginfo.get(entry, {}))
     install_requires = [("%s %s" % (d, v and v or "")).strip()
-                       for d, v in requires.iteritems()]
+                       for d, v in requires.items()]
 else:
     install_requires = []
 
@@ -140,7 +141,7 @@ def export(from_dir, to_dir,
                 shutil.copy2(src, dest)
     try:
         os.mkdir(to_dir)
-    except OSError, ex:
+    except OSError as ex:
         # file exists ?
         import errno
         if ex.errno != errno.EEXIST: