Question

我正在尝试运行现有项目。我已经恢复了我的数据库并安装了所有必需的依赖项。运行syncdb时，我收到了以下错误。

[root@localhost ]# python manage.py syncdb
Traceback (most recent call last):
  File "manage.py", line 11, in <module>
    execute_manager(settings)
  File "/usr/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 459, in execute_manager
    utility.execute()
  File "/usr/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 382, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/usr/local/lib/python2.7/site-packages/django/core/management/base.py", line 196, in run_from_argv
    self.execute(*args, **options.__dict__)
  File "/usr/local/lib/python2.7/site-packages/django/core/management/base.py", line 231, in execute
    self.validate()
  File "/usr/local/lib/python2.7/site-packages/django/core/management/base.py", line 266, in validate
    num_errors = get_validation_errors(s, app)
  File "/usr/local/lib/python2.7/site-packages/django/core/management/validation.py", line 103, in get_validation_errors
    connection.validation.validate_field(e, opts, f)
  File "/usr/local/lib/python2.7/site-packages/django/db/backends/mysql/validation.py", line 14, in validate_field
    db_version = self.connection.get_server_version()
  File "/usr/local/lib/python2.7/site-packages/django/db/backends/mysql/base.py", line 415, in get_server_version
    self.cursor().close()
  File "/usr/local/lib/python2.7/site-packages/debug_toolbar/utils/tracking/__init__.py", line 9, in wrapped
    return callback(original, *args, **kwargs)
  File "/usr/local/lib/python2.7/site-packages/debug_toolbar/panels/sql.py", line 21, in cursor
    result = original(self)
  File "/usr/local/lib/python2.7/site-packages/django/db/backends/__init__.py", line 306, in cursor
    cursor = self.make_debug_cursor(self._cursor())
  File "/usr/local/lib/python2.7/site-packages/django/db/backends/mysql/base.py", line 387, in _cursor
    self.connection = Database.connect(**kwargs)
  File "/usr/local/lib/python2.7/site-packages/MySQL_python-1.2.3-py2.7-linux-i686.egg/MySQLdb/__init__.py", line 81, in Connect
    return Connection(*args, **kwargs)
  File "/usr/local/lib/python2.7/site-packages/MySQL_python-1.2.3-py2.7-linux-i686.egg/MySQLdb/connections.py", line 215, in __init__
    self.set_character_set(charset)
  File "/usr/local/lib/python2.7/site-packages/MySQL_python-1.2.3-py2.7-linux-i686.egg/MySQLdb/connections.py", line 294, in set_character_set
    super(Connection, self).set_character_set(charset)
_mysql_exceptions.ProgrammingError: (2014, "Commands out of sync; you can't run this command now")

Answer 1

你在复制sql语句吗？

例如：cursor.execute（'show databases; show tables;'）？

如果是这样，请尝试将它们分开：

cursor.execute（ ''） cursor.close 重新连接重复

Answer 2

正如@Kalinakov所说，这个错误是由于你的代码中使用了一些不正确的游标。请在代码中搜索cursor.execute并开始调试。

另请参阅下面的文章，其中提到了为什么会出现这种错误以及解决方案是什么 - Ways to avoid MySQLdb's "Commands out of sync; you can't run this command now" (2014) exception

Answer 3

让我们开始一个小型调试之旅：

1）您的数据库是否正确配置？让我们在没有mySQL数据库和SQlite的情况下尝试它。如果您没有任何编程错误 - SQLite将直接启动并同步您的数据库。为此，你需要去你的 settings.py并将您的数据库重新配置为类似这样的内容：
```
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.sqlite3', 
'NAME': 'database.db',                      

'USER': '',
'PASSWORD': '',
'HOST': '',                     
'PORT': '',                     
```
} }
2）现在，运行syncdb并查看它是否有效。如果它现在有效，您可能需要重新配置数据库：name，password，host和port。如果SQlite不起作用 - 请回到这里并告诉我们确切的错误消息。

syncdb命令无法正常工作

3 个答案: