#27750: TypeError when running manage.py migrate -------------------------------------------+------------------------ Reporter: Henrique Chehad | Owner: nobody Type: Uncategorized | Status: new Component: Migrations | Version: 1.9 Severity: Normal | Keywords: Triage Stage: Unreviewed | Has patch: 0 Needs documentation: 0 | Needs tests: 0 Patch needs improvement: 0 | Easy pickings: 0 UI/UX: 0 | -------------------------------------------+------------------------ Hello,
Is returning this error when I try to run ./manage.py migrate in a model: Model: {{{ class Cast(models.Model): movie = models.ForeignKey("movies.Movie") artist = models.ForeignKey("artists.Artist", db_column="actor_id") }}} Migration: {{{ migrations.AlterField( model_name='cast', name='artist', field=models.ForeignKey(db_column='actor_id', on_delete=django.db.models.deletion.CASCADE, to='artists.Artist'), ), }}} Error: {{{ Traceback (most recent call last): File "manage.py", line 10, in <module> execute_from_command_line(sys.argv) File "/usr/local/lib/python3.5/site- packages/django/core/management/__init__.py", line 353, in execute_from_command_line utility.execute() File "/usr/local/lib/python3.5/site- packages/django/core/management/__init__.py", line 345, in execute self.fetch_command(subcommand).run_from_argv(self.argv) File "/usr/local/lib/python3.5/site- packages/django/core/management/base.py", line 348, in run_from_argv self.execute(*args, **cmd_options) File "/usr/local/lib/python3.5/site- packages/raven/contrib/django/management/__init__.py", line 41, in new_execute return original_func(self, *args, **kwargs) File "/usr/local/lib/python3.5/site- packages/django/core/management/base.py", line 399, in execute output = self.handle(*args, **options) File "/usr/local/lib/python3.5/site- packages/django/core/management/commands/migrate.py", line 200, in handle executor.migrate(targets, plan, fake=fake, fake_initial=fake_initial) File "/usr/local/lib/python3.5/site- packages/django/db/migrations/executor.py", line 92, in migrate self._migrate_all_forwards(plan, full_plan, fake=fake, fake_initial=fake_initial) File "/usr/local/lib/python3.5/site- packages/django/db/migrations/executor.py", line 121, in _migrate_all_forwards state = self.apply_migration(state, migration, fake=fake, fake_initial=fake_initial) File "/usr/local/lib/python3.5/site- packages/django/db/migrations/executor.py", line 198, in apply_migration state = migration.apply(state, schema_editor) File "/usr/local/lib/python3.5/site- packages/django/db/migrations/migration.py", line 123, in apply operation.database_forwards(self.app_label, schema_editor, old_state, project_state) File "/usr/local/lib/python3.5/site- packages/django/db/migrations/operations/fields.py", line 201, in database_forwards schema_editor.alter_field(from_model, from_field, to_field) File "/usr/local/lib/python3.5/site- packages/django/db/backends/base/schema.py", line 482, in alter_field old_db_params, new_db_params, strict) File "/usr/local/lib/python3.5/site- packages/django/db/backends/postgresql/schema.py", line 110, in _alter_field new_db_params, strict, File "/usr/local/lib/python3.5/site- packages/django/db/backends/base/schema.py", line 545, in _alter_field self.execute(self._rename_field_sql(model._meta.db_table, old_field, new_field, new_type)) File "/usr/local/lib/python3.5/site- packages/django/db/backends/base/schema.py", line 867, in _rename_field_sql "old_column": self.quote_name(old_field.column), File "/usr/local/lib/python3.5/site- packages/django/db/backends/base/schema.py", line 113, in quote_name return self.connection.ops.quote_name(name) File "/usr/local/lib/python3.5/site- packages/django/db/backends/postgresql/operations.py", line 95, in quote_name if name.startswith('"') and name.endswith('"'): TypeError: startswith first arg must be bytes or a tuple of bytes, not str }}} The error is in the field `artist` of `Cast` model, because I added a `print()` to discover what is the field with the error when call the function `quote_name` and printed `actor_id`. I commented this field in migration just to test and worked. Detail: I didn't changed anything in this fields, it's because when I migrated from Python 2.7.5 to Python 3.5 the verbose_name changed (removed the u"") and asked to generate new migrations. I think it is unnecessary. -- Ticket URL: <https://code.djangoproject.com/ticket/27750> Django <https://code.djangoproject.com/> The Web framework for perfectionists with deadlines. -- You received this message because you are subscribed to the Google Groups "Django updates" group. To unsubscribe from this group and stop receiving emails from it, send an email to django-updates+unsubscr...@googlegroups.com. To post to this group, send email to django-updates@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/django-updates/057.3ca87a4335663ac887fc2b7a16a69e18%40djangoproject.com. For more options, visit https://groups.google.com/d/optout.