As of: changeset:   78843:8ff2f4634ed8
date:        Sun Sep 02 16:37:09 2012 -0400

I am getting this failure:

$ ./python.exe -m test -v -u curses test_curses
== CPython 3.3.0rc1+ (default:8ff2f4634ed8, Sep 2 2012, 16:02:43) [GCC 4.2.1 Compatible Apple Clang 3.1 (tags/Apple/clang-318.0.58)]
==   Darwin-11.4.0-x86_64-i386-64bit little-endian
==   .../build/test_python_17427
Testing with flags: sys.flags(debug=0, inspect=0, interactive=0, optimize=0, dont_write_bytecode=0, no_user_site=0, no_site=0, ignore_environment=0, verbose=0, bytes_warning=0, quiet=0, hash_randomization=1)
[1/1] test_curses
test test_curses crashed -- Traceback (most recent call last):
  File ".../Lib/test/regrtest.py", line 1221, in runtest_inner
    test_runner()
  File ".../Lib/test/test_curses.py", line 336, in test_main
    main(stdscr)
  File ".../Lib/test/test_curses.py", line 322, in main
    test_unget_wch(stdscr)
  File ".../Lib/test/test_curses.py", line 283, in test_unget_wch
    raise AssertionError("%r != %r" % (read, ch))
AssertionError: -61 != 'é'

Looks like this may be related to issue 15785.