WARNINGS: ?: (staticfiles.W004) The directory 'F:\PyCharmProjects\py-goods\static/' in the STATICFILES_DIRS setting does not exist. app01.List: (models.W042) Auto-created primary key used when not defining a primary key type, by default 'django.db.models.AutoField'. HINT: Configure the DEFAULT_AUTO_FIELD setting or the App01Config.default_auto_field attribute to point to a subclass of AutoField, e.g. 'django.db.models.BigAutoField'. app01.message: (models.W042) Auto-created primary key used when not defining a primary key type, by default 'django.db.models.AutoField'. HINT: Configure the DEFAULT_AUTO_FIELD setting or the App01Config.default_auto_field attribute to point to a subclass of AutoField, e.g. 'django.db.models.BigAutoField'. app01.product: (models.W042) Auto-created primary key used when not defining a primary key type, by default 'django.db.models.AutoField'. HINT: Configure the DEFAULT_AUTO_FIELD setting or the App01Config.default_auto_field attribute to point to a subclass of AutoField, e.g. 'django.db.models.BigAutoField'. Operations to perform: Apply all migrations: admin, app01, auth, contenttypes, sessions Running migrations: No migrations to apply.‘’

这是 Django 在运行时输出的一些警告信息。其中：

- 第一个警告是因为你在 `STATICFILES_DIRS` 中设置了一个不存在的目录，需要确认是否设置正确或者创建该目录。
- 后面三个警告是因为你在定义模型时没有显式地指定主键类型，Django 会自动使用 `AutoField`，但是该字段在 MySQL 中会默认为 `int(11)`，可能会导致一些问题。建议在模型定义中显式指定主键类型，或者为应用程序配置 `DEFAULT_AUTO_FIELD` 或 `App01Config.default_auto_field` 属性来指定自动主键类型。
- 最后的信息表示当前没有需要执行的数据库迁移操作。

相关问题

WARNINGS: ?: (staticfiles.W004) The directory 'static' in the STATICFILES_DIRS setting does not exist. buy.Cart: (models.W042) Auto-created primary key used when not defining a primary key type, by default 'django.db.models.AutoField'. HINT: Configure the DEFAULT_AUTO_FIELD setting or the BuyConfig.default_auto_field attribute to point to a subclass of AutoField, e.g. 'django.d b.models.BigAutoField'. buy.Orders: (models.W042) Auto-created primary key used when not defining a primary key type, by default 'django.db.models.AutoField'. HINT: Configure the DEFAULT_AUTO_FIELD setting or the BuyConfig.default_auto_field attribute to point to a subclass of AutoField, e.g. 'django.d b.models.BigAutoField'. sale.Brand: (models.W042) Auto-created primary key used when not defining a primary key type, by default 'django.db.models.AutoField'. HINT: Configure the DEFAULT_AUTO_FIELD setting or the SaleConfig.default_auto_field attribute to point to a subclass of AutoField, e.g. 'django. db.models.BigAutoField'. sale.Carinfo: (models.W042) Auto-created primary key used when not defining a primary key type, by default 'django.db.models.AutoField'. HINT: Configure the DEFAULT_AUTO_FIELD setting or the SaleConfig.default_auto_field attribute to point to a subclass of AutoField, e.g. 'django. db.models.BigAutoField'. userinfo.UserInfo: (models.W042) Auto-created primary key used when not defining a primary key type, by default 'django.db.models.AutoField'. HINT: Configure the DEFAULT_AUTO_FIELD setting or the UserinfoConfig.default_auto_field attribute to point to a subclass of AutoField, e.g. 'dja ngo.db.models.BigAutoField'. No changes detected

The warnings indicate the following issues:

- `staticfiles.W004`: The `STATICFILES_DIRS` setting is configured to use a directory named `static`, but it does not exist in your project. You should either create the directory or modify the setting to use an existing directory.

- `models.W042`: Auto-created primary keys are being used for several of your models (`buy.Cart`, `buy.Orders`, `sale.Brand`, `sale.Carinfo`, `userinfo.UserInfo`). You should explicitly define a primary key field for each model instead of relying on the default auto-generated primary key. To do this, add a `primary_key=True` argument to a field in the model definition, or specify a custom primary key field using the `primary_key` attribute.

- `No changes detected`: This is not a warning, but rather an informational message indicating that no changes were detected in your models that require migration.

To address the `models.W042` warnings, you can either add a `primary_key=True` argument to an existing field or create a new field with the `primary_key=True` argument. For example:

class Cart(models.Model):
    cart_id = models.AutoField(primary_key=True)
    # ...

Alternatively, you can configure the `DEFAULT_AUTO_FIELD` setting in your project settings to specify a custom primary key field for all models in your project. For example:

# settings.py
from django.conf import settings

class BuyConfig(AppConfig):
    default_auto_field = 'django.db.models.BigAutoField'

settings.configure(BUY_CONFIG=BuyConfig)

This will set the default auto-generated primary key field for all models in the `buy` app to `BigAutoField`. You can repeat this pattern for other apps in your project as well.

/Users/ghost/PycharmProjects/pythonProject2/venv/lib/python3.10/site-packages/requests/__init__.py:109: RequestsDependencyWarning: urllib3 (2.0.4) or chardet (None)/charset_normalizer (3.0.1) doesn't match a supported version! warnings.warn(

引用\[1\]:当使用命令"pip install package_name"安装包时，可能会遇到一些问题。例如，您提到的错误信息中出现了SyntaxError: invalid syntax。解决此问题的一种方法是重新安装pip。您可以使用以下命令重新安装pip:

wget https://bootstrap.pypa.io/3.5/get-pip.py
python3 get-pip.py

这将下载并安装最新版本的pip。\[1\]

引用\[2\]:另一个问题是ImportError，错误信息中提到了Library not loaded。这个问题可能是由于缺少依赖库引起的。解决此问题的一种方法是在mysql安装路径的lib目录下创建一个软链接。您可以使用以下命令创建软链接：

sudo ln -s /usr/local/mysql/lib/libmysqlclient.21.dylib /usr/lib/libmysqlclient.21.dylib

这将在/usr/lib/目录下创建一个指向libmysqlclient.21.dylib的软链接。\[2\]

引用\[3\]:最后一个问题涉及到依赖版本不匹配的警告。根据警告信息，urllib3、chardet和charset_normalizer的版本与支持的版本不匹配。为了解决这个问题，您可以使用特定的pip路径来安装包。您可以使用以下命令来指定pip路径并安装scikit-network包：

alias pip=~/miniconda3/envs/PyG/bin/pip3
pip install scikit-network

这将使用指定路径下的pip来安装scikit-network包。\[3\]
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