[1.5.x] Fixed #19745 -- Forced resolution of verbose names in createsupersuser

Thanks Baptiste Mispelon for the report and Preston Holmes for the review.
Backport of 2390fe3f4 from master.

django/contrib/auth/management/commands/createsuperuser.py

@@ -11,7 +11,7 @@ from django.contrib.auth.management import get_default_username
 from django.core import exceptions
 from django.core.management.base import BaseCommand, CommandError
 from django.db import DEFAULT_DB_ALIAS
-from django.utils.encoding import force_str
+from django.utils.encoding import force_str, force_text
 from django.utils.six.moves import input
 from django.utils.text import capfirst
 
@@ -80,9 +80,10 @@ class Command(BaseCommand):
             try:
 
                 # Get a username
+                verbose_field_name = force_text(self.username_field.verbose_name)
                 while username is None:
                     if not username:
-                        input_msg = capfirst(self.username_field.verbose_name)
+                        input_msg = capfirst(verbose_field_name)
                         if default_username:
                             input_msg = "%s (leave blank to use '%s')" % (
                                 input_msg, default_username)
@@ -102,14 +103,14 @@ class Command(BaseCommand):
                         pass
                     else:
                         self.stderr.write("Error: That %s is already taken." %
-                                self.username_field.verbose_name)
+                                verbose_field_name)
                         username = None
 
                 for field_name in self.UserModel.REQUIRED_FIELDS:
                     field = self.UserModel._meta.get_field(field_name)
                     user_data[field_name] = options.get(field_name)
                     while user_data[field_name] is None:
-                        raw_value = input(force_str('%s: ' % capfirst(field.verbose_name)))
+                        raw_value = input(force_str('%s: ' % capfirst(force_text(field.verbose_name))))
                         try:
                             user_data[field_name] = field.clean(raw_value, None)
                         except exceptions.ValidationError as e:

django/contrib/auth/tests/basic.py

@@ -12,6 +12,7 @@ from django.core.exceptions import ImproperlyConfigured
 from django.core.management import call_command
 from django.test import TestCase
 from django.test.utils import override_settings
+from django.utils.encoding import force_str
 from django.utils.six import StringIO
 
 
@@ -30,8 +31,13 @@ def mock_inputs(inputs):
                 # prompt should be encoded in Python 2. This line will raise an
                 # Exception if prompt contains unencoded non-ascii on Python 2.
                 prompt = str(prompt)
-                if str('leave blank to use') in prompt:
-                    return inputs['username']
+                assert str('__proxy__') not in prompt
+                response = ''
+                for key, val in inputs.items():
+                    if force_str(key) in prompt.lower():
+                        response = val
+                        break
+                return response
 
             old_getpass = createsuperuser.getpass
             old_input = createsuperuser.input
@@ -178,16 +184,20 @@ class BasicTestCase(TestCase):
         u = User.objects.get(username="nolocale@somewhere.org")
         self.assertEqual(u.email, 'nolocale@somewhere.org')
 
-    @mock_inputs({'password': "nopasswd", 'username': 'foo'})
+    @mock_inputs({
+        'password': "nopasswd",
+        'uživatel': 'foo',  # username (cz)
+        'email': 'nolocale@somewhere.org'})
     def test_createsuperuser_non_ascii_verbose_name(self):
+        # Aliased so the string doesn't get extracted
+        from django.utils.translation import ugettext_lazy as ulazy
         username_field = User._meta.get_field('username')
         old_verbose_name = username_field.verbose_name
-        username_field.verbose_name = 'uživatel'
+        username_field.verbose_name = ulazy('uživatel')
         new_io = StringIO()
         try:
             call_command("createsuperuser",
                 interactive=True,
-                email="nolocale@somewhere.org",
                 stdout=new_io
             )
         finally: