{* ../../docs_src/security/tutorial003_an_py310.py hl[82:85] *}

#### Про `**user_dict` { #about-user-dict }

`UserInDB(**user_dict)` означает:

*Передать ключи и значения `user_dict` непосредственно как аргументы ключ-значение, эквивалентно:*

```Python
UserInDB(
    username = user_dict["username"],

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The benefit of raising an exception over returning a value will be more evident in the section about Dependencies and Security.

In this example, when the client requests an item by an ID that doesn't exist, raise an exception with a status code of `404`:

{* ../../docs_src/handling_errors/tutorial001_py39.py hl[11] *}

#**##foreach ( $license in $project.licenses )
#*  *##set ( $groupId = $project.artifact.groupId )
#*  *##set ( $directory = 'lib' )
#*  *##if ( !$apacheMavenGroupIds.contains( $groupId ) )
#*    *### advertise about each non-Maven dependency
#*    *###
#*    *### infer SPDX license id
#*    *##if ( $MITLicenseNames.contains( $license.name ) )
#*      *##set ( $spdx = 'MIT' )

class UserInDB(User):
    hashed_password: str


password_hash = PasswordHash.recommended()

oauth2_scheme = OAuth2PasswordBearer(
    tokenUrl="token",
    scopes={"me": "Read information about the current user.", "items": "Read items."},
)

app = FastAPI()


def verify_password(plain_password, hashed_password):
    return password_hash.verify(plain_password, hashed_password)

class UserInDB(User):
    hashed_password: str


password_hash = PasswordHash.recommended()

oauth2_scheme = OAuth2PasswordBearer(
    tokenUrl="token",
    scopes={"me": "Read information about the current user.", "items": "Read items."},
)

app = FastAPI()


def verify_password(plain_password, hashed_password):
    return password_hash.verify(plain_password, hashed_password)

```

The second version is an "absolute import":

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

To learn more about Python Packages and Modules, read <a href="https://docs.python.org/3/tutorial/modules.html" class="external-link" target="_blank">the official Python documentation about Modules</a>.

///

### Avoid name collisions { #avoid-name-collisions }

  }

  /**
   * Asserts that {@code transformation} is diagonal (i.e. neither horizontal nor vertical) and
   * passes through both {@code (x1, y1)} and {@code (x1 + xDelta, y1 + yDelta)}. Includes
   * assertions about all the public instance methods of {@link LinearTransformation} (on both
   * {@code transformation} and its inverse). Since the transformation is expected to be diagonal,
   * neither {@code xDelta} nor {@code yDelta} may be zero.

import java.util.List;

import org.apache.commons.cli.Option;
import org.junit.jupiter.api.Test;

import static java.util.Objects.nonNull;

/**
 * Pseudo test to generate documentation fragment about supported CLI options. TODO such documentation generation code
 * should not be necessary as unit test but should be run during site generation (Velocity? Doxia macro?)
 */
@Deprecated
class CLIManagerDocumentationTest {

Para declarar corpos de formulário, você precisa usar `Form` explicitamente, porque sem ele os parâmetros seriam interpretados como parâmetros de consulta ou parâmetros de corpo (JSON).

///

## Sobre "Campos de formulário" { #about-form-fields }

A forma como os formulários HTML (`<form></form>`) enviam os dados para o servidor normalmente usa uma codificação "especial" para esses dados, é diferente do JSON.