python - 如何修复错误 : django. db.utils.NotSupportedError:不支持 URI

Question

我在 Linux 机器(在 AWS 中)的 Django 项目中使用:

• python 3.5.1
• Django 1.11.7

我已经为我的项目创建了虚拟环境，并且所有的依赖项都完美地安装在那里。对于数据库，我使用的是 sqlite3。有关版本详细信息，请参见下文。

>>>import sqlite3
>>>sqlite3.version
'2.6.0'
>>>sqlite3.sqlite_version_info
(3, 7, 17)

在 settings.py 中，DATABASES 部分如下所示:

DATABASES = {
   'default': {
      'ENGINE': 'django.db.backends.sqlite3',
      'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
   }
}

在运行 runserver 时，我得到一个异常，如 sqlite3.NotSupportedError: URIs not supported ，它产生了一个错误 django.db.utils.NotSupportedError: URIs not supported，我无法修复。

我已经浏览过类似 djangoproject.com 的帖子和 google.forum ，但仍然无法理解此错误的原因。我也尝试执行 python manage.py makemigrations 但同样的错误也随之而来。

注意:在 Windows 机器上，我的项目运行良好。

请看下面的回溯:

# python manage.py runserver
Performing system checks...

System check identified no issues (0 silenced).
Unhandled exception in thread started by <function check_errors. 
<locals>.wrapper at 0x7f07ff09c2f0>
Traceback (most recent call last):
  File "/tech/poc/env/lib/python3.5/site-packages/django/db/backends/base/base.py", line 213, in ensure_connection
    self.connect()
  File "/tech/poc/env/lib/python3.5/site- packages/django/db/backends/base/base.py", line 189, in connect
    self.connection = self.get_new_connection(conn_params)
  File "/tech/poc/env/lib/python3.5/site-packages/django/db/backends/sqlite3/base.py", line 198, in get_new_connection
    conn = Database.connect(**conn_params)
  sqlite3.NotSupportedError: URIs not supported

  The above exception was the direct cause of the following exception:

  Traceback (most recent call last):
  File "/tech/poc/env/lib/python3.5/site-packages/django/utils/autoreload.py", line 228, in wrapper
    fn(*args, **kwargs)
  File "/tech/poc/env/lib/python3.5/site-packages/django/core/management/commands/runserver.py", line 128, in inner_run
    self.check_migrations()
  File "/tech/poc/env/lib/python3.5/site-packages/django/core/management/base.py", line 422, in check_migrations
    executor = MigrationExecutor(connections[DEFAULT_DB_ALIAS])
  File "/tech/poc/env/lib/python3.5/site-packages/django/db/migrations/executor.py", line 20, in __init__
    self.loader = MigrationLoader(self.connection)
  File "/tech/poc/env/lib/python3.5/site-packages/django/db/migrations/loader.py", line 52, in __init__
    self.build_graph()
  File "/tech/poc/env/lib/python3.5/site-packages/django/db/migrations/loader.py", line 209, in build_graph
    self.applied_migrations = recorder.applied_migrations()
  File "/tech/poc/env/lib/python3.5/site-packages/django/db/migrations/recorder.py", line 65, in applied_migrations
    self.ensure_schema()
  File "/tech/poc/env/lib/python3.5/site-packages/django/db/migrations/recorder.py", line 52, in ensure_schema
    if self.Migration._meta.db_table in self.connection.introspection.table_names(self.connection.cursor()):
  File "/tech/poc/env/lib/python3.5/site-packages/django/db/backends/base/base.py", line 254, in cursor
    return self._cursor()
  File "/tech/poc/env/lib/python3.5/site-packages/django/db/backends/base/base.py", line 229, in _cursor
    self.ensure_connection()
  File "/tech/poc/env/lib/python3.5/site-packages/django/db/backends/base/base.py", line 213, in ensure_connection
    self.connect()
  File "/tech/poc/env/lib/python3.5/site-packages/django/db/utils.py", line 94, in __exit__
    six.reraise(dj_exc_type, dj_exc_value, traceback)
  File "/tech/poc/env/lib/python3.5/site-packages/django/utils/six.py", line 685, in reraise
    raise value.with_traceback(tb)
  File "/tech/poc/env/lib/python3.5/site-packages/django/db/backends/base/base.py", line 213, in ensure_connection
    self.connect()
  File "/tech/poc/env/lib/python3.5/site-packages/django/db/backends/base/base.py", line 189, in connect
    self.connection = self.get_new_connection(conn_params)
  File "/tech/poc/env/lib/python3.5/site-packages/django/db/backends/sqlite3/base.py", line 198, in get_new_connection
    conn = Database.connect(**conn_params)
django.db.utils.NotSupportedError: URIs not supported

请帮助理解并修复此错误。堆栈中没有与此问题相关的帖子，我也没有在谷歌中找到任何相关内容。

Answer 1

我遇到了类似的问题。原来 Django 2.1 与 sqlite 3.6.20 不兼容。降级到 2.0.x 版，你应该没问题。该问题已提出并标记为“已解决的错误- wontfix”here