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 26096,Django 1.9.1 sometimes fails to delete cloned testing postgres db,Alex Krupp,nobody,"I got this error running python manage.py test tests --parallel=2: “Got an error cloning the test database: unorderable types: str() >= int()” This continued happening when running the tests in parallel even when telling django to delete the existing db, but not when using --parallel=1. The full traceback is: {{{ Type 'yes' if you would like to try deleting the test database 'test_myapp_api', or 'no' to cancel: yes Destroying old test database for alias 'default'... Cloning test database for alias 'default'... Got an error cloning the test database: unorderable types: str() >= int() Traceback (most recent call last): File ""/home/vagrant/user/.pyenv/versions/myapp343/lib/python3.4/site-packages/django/db/backends/utils.py"", line 62, in execute return self.cursor.execute(sql) psycopg2.ProgrammingError: database ""test_myapp_api_1"" already exists The above exception was the direct cause of the following exception: Traceback (most recent call last): File ""/home/vagrant/user/.pyenv/versions/myapp343/lib/python3.4/site-packages/django/db/backends/postgresql/creation.py"", line 29, in _clone_test_db qn(target_database_name), qn(source_database_name))) File ""/home/vagrant/user/.pyenv/versions/myapp343/lib/python3.4/site-packages/django/db/backends/utils.py"", line 64, in execute return self.cursor.execute(sql, params) File ""/home/vagrant/user/.pyenv/versions/myapp343/lib/python3.4/site-packages/django/db/utils.py"", line 95, in __exit__ six.reraise(dj_exc_type, dj_exc_value, traceback) File ""/home/vagrant/user/.pyenv/versions/myapp343/lib/python3.4/site-packages/django/utils/six.py"", line 685, in reraise raise value.with_traceback(tb) File ""/home/vagrant/user/.pyenv/versions/myapp343/lib/python3.4/site-packages/django/db/backends/utils.py"", line 62, in execute return self.cursor.execute(sql) django.db.utils.ProgrammingError: database ""test_myapp_api_1"" already exists During handling of the above exception, another exception occurred: Traceback (most recent call last): File ""/home/vagrant/user/.pyenv/versions/myapp343/lib/python3.4/site-packages/django/db/backends/postgresql/creation.py"", line 36, in _clone_test_db self._get_database_display_str(target_database_name, verbosity), File ""/home/vagrant/user/.pyenv/versions/myapp343/lib/python3.4/site-packages/django/db/backends/base/creation.py"", line 140, in _get_database_display_str ("" ('%s')"" % database_name) if verbosity >= 2 else '', TypeError: unorderable types: str() >= int() }}} My stack: Django 1.9.1, Postgres 9.4, ubuntu trusty-64",Bug,new,Uncategorized,1.9,Normal,,testing parallel,,Unreviewed,0,0,0,0,0,0