Fixed #8321 -- Change django.contrib.auth.models to use django.utils.hashcompat

import datetime

import urllib

from django.contrib import auth

from django.core.exceptions import ImproperlyConfigured

from django.db import models

from django.db.models.manager import EmptyManager

from django.contrib.contenttypes.models import ContentType

from django.utils.encoding import smart_str

from django.utils.hashcompat import md5_constructor, sha_constructor

from django.utils.translation import ugettext_lazy as _

import datetime

import urllib

UNUSABLE_PASSWORD = '!' # This will never be a valid hash

        except ImportError:

            raise ValueError('"crypt" password algorithm not supported in this environment')

        return crypt.crypt(raw_password, salt)

    # The rest of the supported algorithms are supported by hashlib, but

    # hashlib is only available in Python 2.5.

    try:

        import hashlib

    except ImportError:

        if algorithm == 'md5':

            import md5

            return md5.new(salt + raw_password).hexdigest()

        elif algorithm == 'sha1':

            import sha

            return sha.new(salt + raw_password).hexdigest()

    else:

    if algorithm == 'md5':

            return hashlib.md5(salt + raw_password).hexdigest()

        return md5_constructor(salt + raw_password).hexdigest()

    elif algorithm == 'sha1':

            return hashlib.sha1(salt + raw_password).hexdigest()

        return sha_constructor(salt + raw_password).hexdigest()

    raise ValueError("Got unknown password algorithm type in password.")

def check_password(raw_password, enc_password):