# Concurrence et async / await { #concurrency-and-async-await }

Détails sur la syntaxe `async def` pour les *fonctions de chemin d'accès* et quelques rappels sur le code asynchrone, la concurrence et le parallélisme.

## Vous êtes pressés ? { #in-a-hurry }

<abbr title="too long; didn't read - trop long ; pas lu"><strong>TL;DR :</strong></abbr>

Si vous utilisez des bibliothèques tierces qui nécessitent d'être appelées avec `await`, telles que :

```Python

of the sort.

  Next came an angry voice--the Rabbit's--`Pat! Pat!  Where are
you?'  And then a voice she had never heard before, `Sure then
I'm here!  Digging for apples, yer honour!'

  `Digging for apples, indeed!' said the Rabbit angrily.  `Here!
Come and help me out of THIS!'  (Sounds of more broken glass.)

  `Now tell me, Pat, what's that in the window?'

    assertThat(comparator.reverse()).isSameInstanceAs(comparator);

    assertEquals(0, comparator.compare(null, null));
    assertEquals(0, comparator.compare(new Object(), new Object()));
    assertEquals(0, comparator.compare("apples", "oranges"));
    assertThat(reserialize(comparator)).isSameInstanceAs(comparator);
    assertThat(comparator.toString()).isEqualTo("Ordering.allEqual()");

    List<String> strings = ImmutableList.of("b", "a", "d", "c");

    assertThat(comparator.reverse()).isSameInstanceAs(comparator);

    assertEquals(0, comparator.compare(null, null));
    assertEquals(0, comparator.compare(new Object(), new Object()));
    assertEquals(0, comparator.compare("apples", "oranges"));
    assertThat(reserialize(comparator)).isSameInstanceAs(comparator);
    assertThat(comparator.toString()).isEqualTo("Ordering.allEqual()");

    List<String> strings = ImmutableList.of("b", "a", "d", "c");

of the sort.

  Next came an angry voice--the Rabbit's--`Pat! Pat!  Where are
you?'  And then a voice she had never heard before, `Sure then
I'm here!  Digging for apples, yer honour!'

  `Digging for apples, indeed!' said the Rabbit angrily.  `Here!
Come and help me out of THIS!'  (Sounds of more broken glass.)

  `Now tell me, Pat, what's that in the window?'