can't createsuperuser

I can't createsuperuser in 1.5rc1

Error:

   D:\Python27\lib\site-packages\django\utils\hashcompat.py:9: DeprecationWarning:

django.utils.hashcompat is deprecated; use hashlib instead

  DeprecationWarning)

UnicodeEncodeError: 'ascii' codec can't encode characters in position 0-1: ordin

al not in range(128)

Django 1.5rc1

database:mySQL 5

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