diff -r 2c724f45f23f Doc/tools/extensions/patchlevel.py
--- a/Doc/tools/extensions/patchlevel.py	Mon Jan 23 10:23:58 2017 +0200
+++ b/Doc/tools/extensions/patchlevel.py	Tue Jan 24 13:56:35 2017 +0200
@@ -61,8 +61,8 @@
         return get_header_version_info('.')
     except (IOError, OSError):
         version, release = get_sys_version_info()
-        print >>sys.stderr, 'Can\'t get version info from Include/patchlevel.h, ' \
-              'using version of this interpreter (%s).' % release
+        print('Can\'t get version info from Include/patchlevel.h, ' \
+              'using version of this interpreter (%s).' % release, file=sys.stderr)
         return version, release
 
 if __name__ == '__main__':