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 24278 squashmigrations throws ValueError: need more than 1 value to unpack Piotr Maliński Marten Kenbeek "When squashing several migrations I got an exception during squashmigrations: {{{ Traceback (most recent call last): File ""/env/bin/django-admin.py"", line 5, in management.execute_from_command_line() File ""/env/lib/python3.4/site-packages/django/core/management/__init__.py"", line 385, in execute_from_command_line utility.execute() File ""/env/lib/python3.4/site-packages/django/core/management/__init__.py"", line 377, in execute self.fetch_command(subcommand).run_from_argv(self.argv) File ""/env/lib/python3.4/site-packages/django/core/management/base.py"", line 288, in run_from_argv self.execute(*args, **options.__dict__) File ""/env/lib/python3.4/site-packages/django/core/management/base.py"", line 338, in execute output = self.handle(*args, **options) File ""/env/lib/python3.4/site-packages/django/core/management/commands/squashmigrations.py"", line 122, in handle fh.write(writer.as_string()) File ""/env/lib/python3.4/site-packages/django/db/migrations/writer.py"", line 130, in as_string operation_string, operation_imports = OperationWriter(operation).serialize() File ""/env/lib/python3.4/site-packages/django/db/migrations/writer.py"", line 87, in serialize arg_string, arg_imports = MigrationWriter.serialize(arg_value) File ""/env/lib/python3.4/site-packages/django/db/migrations/writer.py"", line 260, in serialize item_string, item_imports = cls.serialize(item) File ""/env/lib/python3.4/site-packages/django/db/migrations/writer.py"", line 327, in serialize return cls.serialize_deconstructed(*value.deconstruct()) File ""/env/lib/python3.4/site-packages/django/db/migrations/writer.py"", line 223, in serialize_deconstructed module, name = path.rsplit(""."", 1) ValueError: need more than 1 value to unpack }}} The ""path"" variable got a value of ""RenameField"" instead of django.something.someField. I found one ""migrations.RenameField"" in the migrations set and after removing it (and ""migrations.AlterField"" which also caused such exception) the squash passed. The migration (operations) with those fields looks like so: {{{ operations = [ migrations.SeparateDatabaseAndState(state_operations=[ migrations.RenameField( model_name='somemodel', old_name='some_old_name', new_name='new_name', ), migrations.AlterField( model_name='somemodel', name='new_name', field=models.BooleanField(db_column='some_old_name', default=False), preserve_default=True, ), ]), ] }}} " Bug closed Migrations 1.8 Normal fixed Markus Holtermann michaelvantellingen@… Ready for checkin 1 0 0 0 0 0