# Concorrência e async / await

Detalhes sobre a sintaxe `async def` para *funções de operação de rota* e alguns conceitos de código assíncrono, concorrência e paralelismo.

## Com pressa?

<abbr title="muito longo; não li"><strong>TL;DR:</strong></abbr>

Se você estiver utilizando bibliotecas de terceiros que dizem para você chamar as funções com `await`, como:

```Python
results = await some_library()
```

li .badge {\n  font-size: .7rem;\n  margin-left: 10px;\n}\n\n.todo-list > li .tools {\n  color: #dc3545;\n  display: none;\n  float: right;\n}\n\n.todo-list > li .tools > .fa,\n.todo-list > li .tools > .fas,\n.todo-list > li .tools > .far,\n.todo-list > li .tools > .fab,\n.todo-list > li .tools > .fal,\n.todo-list > li .tools > .fad,\n.todo-list > li .tools > .svg-inline--fa,\n.todo-list > li .tools > .ion {\n  cursor: pointer;\n  margin-right: 5px;\n}\n\n.todo-list > li:hover .tools {\n  display:...

m}.fa-5x{font-size:5em}.fa-6x{font-size:6em}.fa-7x{font-size:7em}.fa-8x{font-size:8em}.fa-9x{font-size:9em}.fa-10x{font-size:10em}.fa-fw{text-align:center;width:1.25em}.fa-ul{list-style-type:none;margin-left:2.5em;padding-left:0}.fa-ul>li{position:relative}.fa-li{left:-2em;position:absolute;text-align:center;width:2em;line-height:inherit}.fa-border{border:.08em solid #eee;border-radius:.1em;padding:.2em .25em .15em}.fa-pull-left{float:left}.fa-pull-right{float:right}.fa.fa-pull-left,.fab.fa-pull...

.tools>.fa,.todo-list>li .tools>.fab,.todo-list>li .tools>.fad,.todo-list>li .tools>.fal,.todo-list>li .tools>.far,.todo-list>li .tools>.fas,.todo-list>li .tools>.ion,.todo-list>li .tools>.svg-inline--fa{cursor:pointer;margin-right:5px}.todo-list>li:hover .tools{display:inline-block}.todo-list>li.done{color:#697582}.todo-list>li.done .text{font-weight:500;text-decoration:line-through}.todo-list>li.done .badge{background-color:#adb5bd!important}.todo-list .primary{border-left-color:#007bff}.todo-list .seco...

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### API Change

- Fixed a bug in the API server where empty collections of ValidatingAdmissionPolicies did not have an `items` field. ([#126157](https://github.com/kubernetes/kubernetes/pull/126157), [@xyz-li](https://github.com/xyz-li)) [SIG API Machinery]
- Use omitempty for optional Job Pod Failure Policy fields ([#126046](https://github.com/kubernetes/kubernetes/pull/126046), [@mimowo](https://github.com/mimowo)) [SIG Apps]

- Fixed a bug in the API server where empty collections of ValidatingAdmissionPolicies did not have an `items` field. ([#124568](https://github.com/kubernetes/kubernetes/pull/124568), [@xyz-li](https://github.com/xyz-li)) [SIG API Machinery]

FOCUS","AttachmentMap","AUTO","TOP","RIGHT","BOTTOM","LEFT","animation","template","title","delay","html","container","fallbackPlacement","customClass","sanitize","a","area","b","br","col","code","div","em","hr","h1","h2","h3","h4","h5","h6","img","li","ol","p","pre","s","small","span","sub","sup","strong","u","ul","HIDE","HIDDEN","SHOW","SHOWN","INSERTED","CLICK","FOCUSIN","FOCUSOUT","MOUSEENTER","MOUSELEAVE","EVENT_KEY","Tooltip","_isEnabled","_timeout","_hoverState","_activeTrigger","tip","_s...

to-regex-range@^5.0.1:
  version "5.0.1"
  resolved "https://registry.yarnpkg.com/to-regex-range/-/to-regex-range-5.0.1.tgz#1648c44aae7c8d988a326018ed72f5b4dd0392e4"
  integrity sha512-65P7iz6X5yEr1cwcgvQxbbIw7Uk3gOy5dIdtZ4rDveLqhrdJP+Li/Hx6tyK0NEb+2GCyneCMJiGqrADCSNk8sQ==
  dependencies:
    is-number "^7.0.0"

toidentifier@1.0.1:
  version "1.0.1"

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