在OS X上使用Django加载MySQLdb模块时出错

时间：2015-11-15 08:42:36

标签： python mysql django mysql-python

我有一个非常奇怪的情况，我无法弄清楚是什么错。

我正在研究Django项目而我：

在OS X上安装MySQL

添加了DATABASES值： 

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.mysql',
        'OPTIONS': {
            'read_default_file': '/path/to/my.cnf',
        },
    }
}

然后Django / Mezzanine告诉我加载 MySQLdb 模块时出错。

所以我用Google搜索了一些提示并尝试了这些方法： 

pip install mysql-python
  • 重新安装了点子
  • 已下载ez_setup.py并已安装

现在我被卡住了。出现相同的错误，并且感觉MySQL连接器/适配器无法加载此错误。

接下来我应该尝试什么？

使用追溯编辑： 

/Library/Python/2.7/site-packages/django/db/utils.py:238: RemovedInDjango19Warning: In Django 1.9 the TEST_COLLATION connection setting will be moved to a COLLATION entry in the TEST setting
  self.prepare_test_settings(alias)

Unhandled exception in thread started by <function wrapper at 0x1064bc5f0>
Traceback (most recent call last):
  File "/Library/Python/2.7/site-packages/django/utils/autoreload.py", line 229, in wrapper
    fn(*args, **kwargs)
  File "/Library/Python/2.7/site-packages/mezzanine/core/management/commands/runserver.py", line 154, in inner_run
    super(Command, self).inner_run(*args, **kwargs)
  File "/Library/Python/2.7/site-packages/django/core/management/commands/runserver.py", line 107, in inner_run
    autoreload.raise_last_exception()
  File "/Library/Python/2.7/site-packages/django/utils/autoreload.py", line 252, in raise_last_exception
    six.reraise(*_exception)
  File "/Library/Python/2.7/site-packages/django/utils/autoreload.py", line 229, in wrapper
    fn(*args, **kwargs)
  File "/Library/Python/2.7/site-packages/django/__init__.py", line 18, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "/Library/Python/2.7/site-packages/django/apps/registry.py", line 108, in populate
    app_config.import_models(all_models)
  File "/Library/Python/2.7/site-packages/django/apps/config.py", line 198, in import_models
    self.models_module = import_module(models_module_name)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/importlib/__init__.py", line 37, in import_module
    __import__(name)
  File "/Library/Python/2.7/site-packages/django/contrib/auth/models.py", line 41, in <module>
    class Permission(models.Model):
  File "/Library/Python/2.7/site-packages/django/db/models/base.py", line 139, in __new__
    new_class.add_to_class('_meta', Options(meta, **kwargs))
  File "/Library/Python/2.7/site-packages/django/db/models/base.py", line 324, in add_to_class
    value.contribute_to_class(cls, name)
  File "/Library/Python/2.7/site-packages/django/db/models/options.py", line 250, in contribute_to_class
    self.db_table = truncate_name(self.db_table, connection.ops.max_name_length())
  File "/Library/Python/2.7/site-packages/django/db/__init__.py", line 36, in __getattr__
    return getattr(connections[DEFAULT_DB_ALIAS], item)
  File "/Library/Python/2.7/site-packages/django/db/utils.py", line 240, in __getitem__
    backend = load_backend(db['ENGINE'])
  File "/Library/Python/2.7/site-packages/django/db/utils.py", line 111, in load_backend
    return import_module('%s.base' % backend_name)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/importlib/__init__.py", line 37, in import_module
    __import__(name)
  File "/Library/Python/2.7/site-packages/django/db/backends/mysql/base.py", line 27, in <module>
    raise ImproperlyConfigured("Error loading MySQLdb module: %s" % e)
django.core.exceptions.ImproperlyConfigured: Error loading MySQLdb module: No module named MySQLdb
/Library/Python/2.7/site-packages/django/db/utils.py:238: RemovedInDjango19Warning: In Django 1.9 the TEST_COLLATION connection setting will be moved to a COLLATION entry in the TEST setting
  self.prepare_test_settings(alias)

Unhandled exception in thread started by <function wrapper at 0x10de74500>
Traceback (most recent call last):
  File "/Library/Python/2.7/site-packages/django/utils/autoreload.py", line 229, in wrapper
    fn(*args, **kwargs)
  File "/Library/Python/2.7/site-packages/mezzanine/core/management/commands/runserver.py", line 154, in inner_run
    super(Command, self).inner_run(*args, **kwargs)
  File "/Library/Python/2.7/site-packages/django/core/management/commands/runserver.py", line 107, in inner_run
    autoreload.raise_last_exception()
  File "/Library/Python/2.7/site-packages/django/utils/autoreload.py", line 252, in raise_last_exception
    six.reraise(*_exception)
  File "/Library/Python/2.7/site-packages/django/utils/autoreload.py", line 229, in wrapper
    fn(*args, **kwargs)
  File "/Library/Python/2.7/site-packages/django/__init__.py", line 18, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "/Library/Python/2.7/site-packages/django/apps/registry.py", line 108, in populate
    app_config.import_models(all_models)
  File "/Library/Python/2.7/site-packages/django/apps/config.py", line 198, in import_models
    self.models_module = import_module(models_module_name)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/importlib/__init__.py", line 37, in import_module
    __import__(name)
  File "/Library/Python/2.7/site-packages/django/contrib/auth/models.py", line 41, in <module>
    class Permission(models.Model):
  File "/Library/Python/2.7/site-packages/django/db/models/base.py", line 139, in __new__
    new_class.add_to_class('_meta', Options(meta, **kwargs))
  File "/Library/Python/2.7/site-packages/django/db/models/base.py", line 324, in add_to_class
    value.contribute_to_class(cls, name)
  File "/Library/Python/2.7/site-packages/django/db/models/options.py", line 250, in contribute_to_class
    self.db_table = truncate_name(self.db_table, connection.ops.max_name_length())
  File "/Library/Python/2.7/site-packages/django/db/__init__.py", line 36, in __getattr__
    return getattr(connections[DEFAULT_DB_ALIAS], item)
  File "/Library/Python/2.7/site-packages/django/db/utils.py", line 240, in __getitem__
    backend = load_backend(db['ENGINE'])
  File "/Library/Python/2.7/site-packages/django/db/utils.py", line 111, in load_backend
    return import_module('%s.base' % backend_name)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/importlib/__init__.py", line 37, in import_module
    __import__(name)
  File "/Library/Python/2.7/site-packages/django/db/backends/mysql/base.py", line 27, in <module>
    raise ImproperlyConfigured("Error loading MySQLdb module: %s" % e)
django.core.exceptions.ImproperlyConfigured: Error loading MySQLdb module: No module named MySQLdb

运行pip命令时： 

The directory '/Users/myusername/Library/Caches/pip/http' or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
You are using pip version 7.0.3, however version 7.1.2 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
The directory '/Users/myusername/Library/Caches/pip/http' or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
Collecting mysql-python
  Downloading MySQL-python-1.2.5.zip (108kB)
    100% |████████████████████████████████| 110kB 495kB/s 
    Complete output from command python setup.py egg_info:
    sh: mysql_config: command not found
    Traceback (most recent call last):
      File "<string>", line 20, in <module>
      File "/private/tmp/pip-build-LaB_Nv/mysql-python/setup.py", line 17, in <module>
        metadata, options = get_config()
      File "setup_posix.py", line 43, in get_config
        libs = mysql_config("libs_r")
      File "setup_posix.py", line 25, in mysql_config
        raise EnvironmentError("%s not found" % (mysql_config.path,))
    EnvironmentError: mysql_config not found

    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /private/tmp/pip-build-LaB_Nv/mysql-python

2 个答案:

答案 0 :(得分：2)

当您尝试为postgres安装psycopg2软件包时问题是一样的。要解决此问题，您必须添加到 PATH 您的mysql bin目录。

请按照以下步骤操作：
1.下载 DMG存档并安装最新的Mysql社区服务器正式版：mysql-5.7.9
2.将mysql bin目录添加到PATH。为此，请添加到您的relationship文件

acls
  1. 重新启动计算机
  2. 运行：~/.bash_profile

    3. 并输出：# add mysql bin directory PATH="/usr/local/mysql/bin/:${PATH}" export PATH

答案 1 :(得分：0)

对于Mac用户

mysql-connector-c有一些问题，

打开/ usr / local / bin / mysql_config脚本进行修改：

Libs = "-L$pkglibdir"
Libs = "$libs -l"

更改为：

Libs = "-L$pkglibdir"
Libs = "$libs -lmysqlclient -lssl -lcrypto"

然后安装Python-Mysql，

pip install MySQL-python
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