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django - 迁移 postgresql 中的模型时，关于 postgresql TypeError 的 django-cms 迁移问题

问题描述

django-cms：当我尝试python manage.py migrate在 postgresql 中执行时，它返回 aTypeError但在sqlite3.

这是我的完整追溯：

File "manage.py", line 22, in <module>
    execute_from_command_line(sys.argv)
  File "/home/vagrant/.virtualenvs/pmvp/lib/python3.6/site-packages/django/core/management/__init__.py", line 364, in execute_from_command_line
    utility.execute()
  File "/home/vagrant/.virtualenvs/pmvp/lib/python3.6/site-packages/django/core/management/__init__.py", line 356, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/home/vagrant/.virtualenvs/pmvp/lib/python3.6/site-packages/django/core/management/base.py", line 283, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/home/vagrant/.virtualenvs/pmvp/lib/python3.6/site-packages/django/core/management/base.py", line 330, in execute
    output = self.handle(*args, **options)
  File "/home/vagrant/.virtualenvs/pmvp/lib/python3.6/site-packages/django/core/management/commands/migrate.py", line 204, in handle
    fake_initial=fake_initial,
  File "/home/vagrant/.virtualenvs/pmvp/lib/python3.6/site-packages/django/db/migrations/executor.py", line 115, in migrate
    state = self._migrate_all_forwards(state, plan, full_plan, fake=fake, fake_initial=fake_initial)
  File "/home/vagrant/.virtualenvs/pmvp/lib/python3.6/site-packages/django/db/migrations/executor.py", line 145, in _migrate_all_forwards
    state = self.apply_migration(state, migration, fake=fake, fake_initial=fake_initial)
  File "/home/vagrant/.virtualenvs/pmvp/lib/python3.6/site-packages/django/db/migrations/executor.py", line 244, in apply_migration
    state = migration.apply(state, schema_editor)
  File "/home/vagrant/.virtualenvs/pmvp/lib/python3.6/site-packages/cms/migrations/0019_set_pagenode.py", line 68, in apply
    connection.introspection.get_table_description(connection.cursor(), 'cms_page')
  File "/home/vagrant/.virtualenvs/pmvp/lib/python3.6/site-packages/django/db/backends/postgresql/introspection.py", line 87, in get_table_description
    )) for line in cursor.description
  File "/home/vagrant/.virtualenvs/pmvp/lib/python3.6/site-packages/django/db/backends/postgresql/introspection.py", line 87, in <listcomp>
    )) for line in cursor.description
TypeError: sequence index must be integer, not 'slice'

谁能帮我吗？

标签： djangopostgresqldjango-cms

解决方案

这是与 psycopg 的兼容性问题。安装旧版本的 psycopg2 后会出现该错误。

pip install psycopg2==2.7.7

https://github.com/divio/django-cms/issues/6666

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