## 审查所有文件

最后回顾整个案例，您应该有一个名为的目录`my_super_project`，其中包含一个名为`sql_app`。

`sql_app`中应该有以下文件：

* `sql_app/__init__.py`：这是一个空文件。

* `sql_app/database.py`：

```Python
{!../../../docs_src/sql_databases/sql_app/database.py!}
```

* `sql_app/models.py`:

```Python
{!../../../docs_src/sql_databases/sql_app/models.py!}
```

* `sql_app/schemas.py`:

=== "Python 3.10+"

    ```Python

 💭 👆 🔜 ✔️ 📁 📛 `my_super_project` 👈 🔌 🎧-📁 🤙 `sql_app`.

`sql_app` 🔜 ✔️ 📄 📁:

* `sql_app/__init__.py`: 🛁 📁.

* `sql_app/database.py`:

```Python
{!../../../docs_src/sql_databases/sql_app/database.py!}
```

* `sql_app/models.py`:

```Python
{!../../../docs_src/sql_databases/sql_app/models.py!}
```

* `sql_app/schemas.py`:

=== "🐍 3️⃣.6️⃣ & 🔛"

`sql_app` should have the following files:

* `sql_app/__init__.py`: is an empty file.

* `sql_app/database.py`:

```Python
{!../../../docs_src/sql_databases/sql_app/database.py!}
```

* `sql_app/models.py`:

```Python
{!../../../docs_src/sql_databases/sql_app/models.py!}
```

* `sql_app/schemas.py`:

=== "Python 3.10+"

`sql_app` should have the following files:

* `sql_app/__init__.py`: is an empty file.

* `sql_app/database.py`:

```Python
{!../../../docs_src/sql_databases_peewee/sql_app/database.py!}
```

* `sql_app/models.py`:

```Python
{!../../../docs_src/sql_databases_peewee/sql_app/models.py!}
```

* `sql_app/schemas.py`:

```Python

`sql_app` 🔜 ✔️ 📄 📁:

* `sql_app/__init__.py`: 🛁 📁.

* `sql_app/database.py`:

```Python
{!../../../docs_src/sql_databases_peewee/sql_app/database.py!}
```

* `sql_app/models.py`:

```Python
{!../../../docs_src/sql_databases_peewee/sql_app/models.py!}
```

* `sql_app/schemas.py`:

```Python

pkg database/sql, const LevelRepeatableRead IsolationLevel
pkg database/sql, const LevelSerializable = 6
pkg database/sql, const LevelSerializable IsolationLevel
pkg database/sql, const LevelSnapshot = 5
pkg database/sql, const LevelSnapshot IsolationLevel
pkg database/sql, const LevelWriteCommitted = 3
pkg database/sql, const LevelWriteCommitted IsolationLevel
pkg database/sql/driver, type ConnBeginTx interface { BeginTx }

pkg database/sql, method (*Conn) QueryRowContext(context.Context, string, ...interface{}) *Row
pkg database/sql, method (*DB) Conn(context.Context) (*Conn, error)
pkg database/sql, type Conn struct
pkg database/sql, type Out struct
pkg database/sql, type Out struct, Dest interface{}
pkg database/sql, type Out struct, In bool
pkg database/sql, var ErrConnDone error

pkg database/sql, method (*NullByte) Scan(interface{}) error
pkg database/sql, method (*NullInt16) Scan(interface{}) error
pkg database/sql, method (NullByte) Value() (driver.Value, error)
pkg database/sql, method (NullInt16) Value() (driver.Value, error)
pkg database/sql, type NullByte struct
pkg database/sql, type NullByte struct, Byte uint8
pkg database/sql, type NullByte struct, Valid bool

pkg database/sql, method (IsolationLevel) String() string
pkg database/sql, type DBStats struct, Idle int
pkg database/sql, type DBStats struct, InUse int
pkg database/sql, type DBStats struct, MaxIdleClosed int64
pkg database/sql, type DBStats struct, MaxLifetimeClosed int64
pkg database/sql, type DBStats struct, MaxOpenConnections int
pkg database/sql, type DBStats struct, WaitCount int64

pkg database/sql, func OpenDB(driver.Connector) *DB
pkg database/sql/driver, type Connector interface { Connect, Driver }
pkg database/sql/driver, type Connector interface, Connect(context.Context) (Conn, error)
pkg database/sql/driver, type Connector interface, Driver() Driver
pkg database/sql/driver, type DriverContext interface { OpenConnector }