id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
24884	Migrations created in Python2.7 fail in Python3.4	Chris Mitchell	nobody	"A migration file created with Python2.7 is failing with the following error in Python3.4:


{{{
  File ""manage.py"", line 10, in <module>
    execute_from_command_line(sys.argv)
  File ""/home/chris/.virtualenvs/djangui3/lib/python3.4/site-packages/Django-1.8.2-py3.4.egg/django/core/management/__init__.py"", line 338, in execute_from_command_line
    utility.execute()
  File ""/home/chris/.virtualenvs/djangui3/lib/python3.4/site-packages/Django-1.8.2-py3.4.egg/django/core/management/__init__.py"", line 330, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File ""/home/chris/.virtualenvs/djangui3/lib/python3.4/site-packages/Django-1.8.2-py3.4.egg/django/core/management/base.py"", line 390, in run_from_argv
    self.execute(*args, **cmd_options)
  File ""/home/chris/.virtualenvs/djangui3/lib/python3.4/site-packages/Django-1.8.2-py3.4.egg/django/core/management/base.py"", line 441, in execute
    output = self.handle(*args, **options)
  File ""/home/chris/.virtualenvs/djangui3/lib/python3.4/site-packages/Django-1.8.2-py3.4.egg/django/core/management/commands/migrate.py"", line 221, in handle
    executor.migrate(targets, plan, fake=fake, fake_initial=fake_initial)
  File ""/home/chris/.virtualenvs/djangui3/lib/python3.4/site-packages/Django-1.8.2-py3.4.egg/django/db/migrations/executor.py"", line 110, in migrate
    self.apply_migration(states[migration], migration, fake=fake, fake_initial=fake_initial)
  File ""/home/chris/.virtualenvs/djangui3/lib/python3.4/site-packages/Django-1.8.2-py3.4.egg/django/db/migrations/executor.py"", line 147, in apply_migration
    state = migration.apply(state, schema_editor)
  File ""/home/chris/.virtualenvs/djangui3/lib/python3.4/site-packages/Django-1.8.2-py3.4.egg/django/db/migrations/migration.py"", line 115, in apply
    operation.database_forwards(self.app_label, schema_editor, old_state, project_state)
  File ""/home/chris/.virtualenvs/djangui3/lib/python3.4/site-packages/Django-1.8.2-py3.4.egg/django/db/migrations/operations/models.py"", line 59, in database_forwards
    schema_editor.create_model(model)
  File ""/home/chris/.virtualenvs/djangui3/lib/python3.4/site-packages/Django-1.8.2-py3.4.egg/django/db/backends/base/schema.py"", line 261, in create_model
    self.quote_name(field.column),
  File ""/home/chris/.virtualenvs/djangui3/lib/python3.4/site-packages/Django-1.8.2-py3.4.egg/django/db/backends/base/schema.py"", line 114, in quote_name
    return self.connection.ops.quote_name(name)
  File ""/home/chris/.virtualenvs/djangui3/lib/python3.4/site-packages/Django-1.8.2-py3.4.egg/django/db/backends/sqlite3/operations.py"", line 98, in quote_name
    if name.startswith('""') and name.endswith('""'):
TypeError: startswith first arg must be bytes or a tuple of bytes, not str
}}}

The offending entry in my migration is:
{{{
('_value', models.TextField(db_column=b'value')),
}}}

Removal of the b allows migration to carry on.
"	Uncategorized	closed	Database layer (models, ORM)	1.8	Normal	invalid			Unreviewed	0	0	0	0	0	0