--(2141:Fri,17 Apr 15:$ )-- mysql -uroot -e 'drop database django_test;create database django_test;' && ./manage.py migrate
Operations to perform:
  Synchronize unmigrated apps: messages, staticfiles
  Apply all migrations: admin, contenttypes, polls, sessions, auth
Synchronizing apps without migrations:
  Creating tables...
    Running deferred SQL...
  Installing custom SQL...
Running migrations:
  Rendering model states... DONE
  Applying contenttypes.0001_initial... OK
  Applying auth.0001_initial... OK
  Applying admin.0001_initial... OK
  Applying contenttypes.0002_remove_content_type_name... OK
  Applying auth.0002_alter_permission_name_max_length... OK
  Applying auth.0003_alter_user_email_max_length... OK
  Applying auth.0004_alter_user_username_opts... OK
  Applying auth.0005_alter_user_last_login_null... OK
  Applying auth.0006_require_contenttypes_0002... OK
  Applying polls.0001_initial... OK
  Applying polls.0002_remove_choice_question...Traceback (most recent call last):
  File "/Users/laszlokarolyi/Work/django-test/virtualenv/lib/python3.4/site-packages/django/db/backends/utils.py", line 64, in execute
    return self.cursor.execute(sql, params)
  File "/Users/laszlokarolyi/Work/django-test/virtualenv/lib/python3.4/site-packages/django/db/backends/mysql/base.py", line 124, in execute
    return self.cursor.execute(query, args)
  File "/Users/laszlokarolyi/Work/django-test/virtualenv/lib/python3.4/site-packages/MySQLdb/cursors.py", line 220, in execute
    self.errorhandler(self, exc, value)
  File "/Users/laszlokarolyi/Work/django-test/virtualenv/lib/python3.4/site-packages/MySQLdb/connections.py", line 36, in defaulterrorhandler
    raise errorvalue
  File "/Users/laszlokarolyi/Work/django-test/virtualenv/lib/python3.4/site-packages/MySQLdb/cursors.py", line 209, in execute
    r = self._query(query)
  File "/Users/laszlokarolyi/Work/django-test/virtualenv/lib/python3.4/site-packages/MySQLdb/cursors.py", line 371, in _query
    rowcount = self._do_query(q)
  File "/Users/laszlokarolyi/Work/django-test/virtualenv/lib/python3.4/site-packages/MySQLdb/cursors.py", line 335, in _do_query
    db.query(q)
  File "/Users/laszlokarolyi/Work/django-test/virtualenv/lib/python3.4/site-packages/MySQLdb/connections.py", line 280, in query
    _mysql.connection.query(self, query)
_mysql_exceptions.OperationalError: (1553, "Cannot drop index 'polls_choice_7aa0f6ee': needed in a foreign key constraint")

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "./manage.py", line 10, in <module>
    execute_from_command_line(sys.argv)
  File "/Users/laszlokarolyi/Work/django-test/virtualenv/lib/python3.4/site-packages/django/core/management/__init__.py", line 338, in execute_from_command_line
    utility.execute()
  File "/Users/laszlokarolyi/Work/django-test/virtualenv/lib/python3.4/site-packages/django/core/management/__init__.py", line 330, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/Users/laszlokarolyi/Work/django-test/virtualenv/lib/python3.4/site-packages/django/core/management/base.py", line 390, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/Users/laszlokarolyi/Work/django-test/virtualenv/lib/python3.4/site-packages/django/core/management/base.py", line 441, in execute
    output = self.handle(*args, **options)
  File "/Users/laszlokarolyi/Work/django-test/virtualenv/lib/python3.4/site-packages/django/core/management/commands/migrate.py", line 221, in handle
    executor.migrate(targets, plan, fake=fake, fake_initial=fake_initial)
  File "/Users/laszlokarolyi/Work/django-test/virtualenv/lib/python3.4/site-packages/django/db/migrations/executor.py", line 110, in migrate
    self.apply_migration(states[migration], migration, fake=fake, fake_initial=fake_initial)
  File "/Users/laszlokarolyi/Work/django-test/virtualenv/lib/python3.4/site-packages/django/db/migrations/executor.py", line 147, in apply_migration
    state = migration.apply(state, schema_editor)
  File "/Users/laszlokarolyi/Work/django-test/virtualenv/lib/python3.4/site-packages/django/db/migrations/migration.py", line 115, in apply
    operation.database_forwards(self.app_label, schema_editor, old_state, project_state)
  File "/Users/laszlokarolyi/Work/django-test/virtualenv/lib/python3.4/site-packages/django/db/migrations/operations/fields.py", line 121, in database_forwards
    schema_editor.remove_field(from_model, from_model._meta.get_field(self.name))
  File "/Users/laszlokarolyi/Work/django-test/virtualenv/lib/python3.4/site-packages/django/db/backends/base/schema.py", line 441, in remove_field
    self.execute(sql)
  File "/Users/laszlokarolyi/Work/django-test/virtualenv/lib/python3.4/site-packages/django/db/backends/base/schema.py", line 107, in execute
    cursor.execute(sql, params)
  File "/Users/laszlokarolyi/Work/django-test/virtualenv/lib/python3.4/site-packages/django/db/backends/utils.py", line 79, in execute
    return super(CursorDebugWrapper, self).execute(sql, params)
  File "/Users/laszlokarolyi/Work/django-test/virtualenv/lib/python3.4/site-packages/django/db/backends/utils.py", line 64, in execute
    return self.cursor.execute(sql, params)
  File "/Users/laszlokarolyi/Work/django-test/virtualenv/lib/python3.4/site-packages/django/db/utils.py", line 97, in __exit__
    six.reraise(dj_exc_type, dj_exc_value, traceback)
  File "/Users/laszlokarolyi/Work/django-test/virtualenv/lib/python3.4/site-packages/django/utils/six.py", line 658, in reraise
    raise value.with_traceback(tb)
  File "/Users/laszlokarolyi/Work/django-test/virtualenv/lib/python3.4/site-packages/django/db/backends/utils.py", line 64, in execute
    return self.cursor.execute(sql, params)
  File "/Users/laszlokarolyi/Work/django-test/virtualenv/lib/python3.4/site-packages/django/db/backends/mysql/base.py", line 124, in execute
    return self.cursor.execute(query, args)
  File "/Users/laszlokarolyi/Work/django-test/virtualenv/lib/python3.4/site-packages/MySQLdb/cursors.py", line 220, in execute
    self.errorhandler(self, exc, value)
  File "/Users/laszlokarolyi/Work/django-test/virtualenv/lib/python3.4/site-packages/MySQLdb/connections.py", line 36, in defaulterrorhandler
    raise errorvalue
  File "/Users/laszlokarolyi/Work/django-test/virtualenv/lib/python3.4/site-packages/MySQLdb/cursors.py", line 209, in execute
    r = self._query(query)
  File "/Users/laszlokarolyi/Work/django-test/virtualenv/lib/python3.4/site-packages/MySQLdb/cursors.py", line 371, in _query
    rowcount = self._do_query(q)
  File "/Users/laszlokarolyi/Work/django-test/virtualenv/lib/python3.4/site-packages/MySQLdb/cursors.py", line 335, in _do_query
    db.query(q)
  File "/Users/laszlokarolyi/Work/django-test/virtualenv/lib/python3.4/site-packages/MySQLdb/connections.py", line 280, in query
    _mysql.connection.query(self, query)
django.db.utils.OperationalError: (1553, "Cannot drop index 'polls_choice_7aa0f6ee': needed in a foreign key constraint")