*/
package okhttp3

import java.io.File
import java.io.FileDescriptor
import java.io.FileInputStream
import java.io.IOException
import okhttp3.internal.checkOffsetAndCount
import okhttp3.internal.chooseCharset
import okio.BufferedSink
import okio.ByteString
import okio.FileSystem
import okio.HashingSink
import okio.Path
import okio.blackholeSink
import okio.buffer
import okio.source

import com.google.errorprone.annotations.InlineMe;
import com.google.j2objc.annotations.J2ObjCIncompatible;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;

And then we do the same for the module `users`.

We could also import them like:

```Python
from app.routers import items, users
```

/// info

The first version is a "relative import":

```Python
from .routers import items, users
```

The second version is an "absolute import":

```Python
from app.routers import items, users
```

```

/// info | Información

La primera versión es un "import relativo":

```Python
from .routers import items, users
```

La segunda versión es un "import absoluto":

```Python
from app.routers import items, users
```

Desde FastAPI 0.119.0, también hay compatibilidad parcial para Pydantic v1 desde dentro de Pydantic v2, para facilitar la migración a v2.

Así que podrías actualizar Pydantic a la última versión 2 y cambiar los imports para usar el submódulo `pydantic.v1`, y en muchos casos simplemente funcionaría.

{* ../../docs_src/pydantic_v1_in_v2/tutorial002_an_py310.py hl[2,5,15] *}

/// warning | Advertencia

Desde o FastAPI 0.119.0, há também suporte parcial ao Pydantic v1 a partir de dentro do Pydantic v2, para facilitar a migração para o v2.

Assim, você pode atualizar o Pydantic para a versão 2 mais recente e alterar os imports para usar o submódulo `pydantic.v1`, e em muitos casos tudo simplesmente funcionará.

{* ../../docs_src/pydantic_v1_in_v2/tutorial002_an_py310.py hl[2,5,15] *}

/// warning | Atenção

import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.function.Supplier;
import java.util.jar.JarFile;
import java.util.stream.Collectors;
import java.util.zip.ZipEntry;

import org.apache.maven.RepositoryUtils;
import org.apache.maven.api.Dependency;
import org.apache.maven.api.Node;
import org.apache.maven.api.PathScope;

import com.google.errorprone.annotations.InlineMe;
import com.google.j2objc.annotations.J2ObjCIncompatible;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;

Since FastAPI 0.119.0, there's also partial support for Pydantic v1 from inside of Pydantic v2, to facilitate the migration to v2.

So, you could upgrade Pydantic to the latest version 2, and change the imports to use the `pydantic.v1` submodule, and in many cases it would just work.

{* ../../docs_src/pydantic_v1_in_v2/tutorial002_an_py310.py hl[2,5,15] *}

/// warning

<div class="termy">

```console
$ python myapp.py
```

</div>

but is not called when another file imports it, like in:

```Python
from myapp import app
```

#### More details { #more-details }

Let's say your file is named `myapp.py`.

If you run it with:

<div class="termy">

```console
$ python myapp.py
```

</div>