Fixed imports to adhere to PEP 8 and stripped trailing whitespace.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@6068 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/core/validators.py

@@ -9,16 +9,17 @@ form field is required.
 """
 
 import urllib2
-from django.conf import settings
-from django.utils.translation import ugettext as _, ugettext_lazy, ungettext
-from django.utils.functional import Promise, lazy
-from django.utils.encoding import force_unicode
 import re
 try:
     from decimal import Decimal, DecimalException
 except ImportError:
     from django.utils._decimal import Decimal, DecimalException    # Python 2.3
 
+from django.conf import settings
+from django.utils.translation import ugettext as _, ugettext_lazy, ungettext
+from django.utils.functional import Promise, lazy
+from django.utils.encoding import force_unicode
+
 _datere = r'\d{4}-\d{1,2}-\d{1,2}'
 _timere = r'(?:[01]?[0-9]|2[0-3]):[0-5][0-9](?::[0-5][0-9])?'
 alnum_re = re.compile(r'^\w+$')