```python
# This is a sample Python code block
def hello_world():
    print("Hello, world!")  # Print greeting
```

````

# Code includes { #code-includes }

## Simple code includes { #simple-code-includes }

{* ../../docs_src/python_types/tutorial001_py310.py *}

{* ../../docs_src/python_types/tutorial002_py310.py *}

import com.google.common.annotations.VisibleForTesting;
import java.util.Spliterator;
import java.util.Spliterators;
import org.jspecify.annotations.Nullable;

/**
 * Implementation of {@link ImmutableList} backed by a simple array.
 *
 * @author Kevin Bourrillion
 */
@GwtCompatible
@SuppressWarnings("serial") // uses writeReplace(), not default serialization
final class RegularImmutableList<E> extends ImmutableList<E> {

gradient-radial($inner-color: $gray-700, $outer-color: $gray-800) {\n  background-image: radial-gradient(circle, $inner-color, $outer-color);\n  background-repeat: no-repeat;\n}\n@mixin gradient-striped($color: rgba($white, .15), $angle: 45deg) {\n  background-image: linear-gradient($angle, $color 25%, transparent 25%, transparent 50%, $color 50%, $color 75%, transparent 75%, transparent);\n}\n","// stylelint-disable selector-no-qualifying-type\n\n//\n// Base styles\n//\n\n.btn {\n  display: inline-block;\n...

/// note | Remarque

Si vous êtes un expert Python, et que vous savez déjà tout sur les annotations de type, passez au chapitre suivant.

///

## Motivation { #motivation }

Commençons par un exemple simple :

{* ../../docs_src/python_types/tutorial001_py310.py *}

Exécuter ce programme affiche :

```
John Doe
```

La fonction fait ce qui suit :

* Prend un `first_name` et un `last_name`.

 * limitations under the License.
 */
package okhttp3.internal.tls

import java.security.cert.X509Certificate
import javax.security.auth.x500.X500Principal

/** A simple index that of trusted root certificates that have been loaded into memory. */
class BasicTrustRootIndex(
  vararg caCerts: X509Certificate,
) : TrustRootIndex {

Ensuite, lorsque vous saisissez ce nom d'utilisateur et ce mot de passe, le navigateur les envoie automatiquement dans l'en-tête.

## Authentification HTTP Basic simple { #simple-http-basic-auth }

- Importer `HTTPBasic` et `HTTPBasicCredentials`.
- Créer un « schéma de sécurité » en utilisant `HTTPBasic`.
- Utiliser ce `security` avec une dépendance dans votre chemin d'accès.

package lex

import (
	"go/build/constraint"
	"io"
	"os"
	"strings"
	"text/scanner"
	"unicode"

	"cmd/asm/internal/flags"
	"cmd/internal/objabi"
	"cmd/internal/src"
)

// A Tokenizer is a simple wrapping of text/scanner.Scanner, configured
// for our purposes and made a TokenReader. It forms the lowest level,
// turning text from readers into tokens.
type Tokenizer struct {
	tok  ScanToken
	s    *scanner.Scanner

### Use the `app.dependency_overrides` attribute { #use-the-app-dependency-overrides-attribute }

For these cases, your **FastAPI** application has an attribute `app.dependency_overrides`, it is a simple `dict`.

To override a dependency for testing, you put as a key the original dependency (a function), and as the value, your dependency override (another function).

### Usa el atributo `app.dependency_overrides` { #use-the-app-dependency-overrides-attribute }

Para estos casos, tu aplicación **FastAPI** tiene un atributo `app.dependency_overrides`, es un simple `dict`.

Para sobrescribir una dependencia para las pruebas, colocas como clave la dependencia original (una función), y como valor, tu dependencia para sobreescribir (otra función).

# limitations under the License.
# ==============================================================================
if [[ "$TFCI_DOCKER_PULL_ENABLE" == 1 ]]; then
  # Simple retry logic for docker-pull errors. Sleeps if a pull fails.
  # Pulling an already-pulled container image will finish instantly, so
  # repeating the command costs nothing.
  docker pull "$TFCI_DOCKER_IMAGE" || sleep 15