---

FastAPI is a modern, fast (high-performance), web framework for building APIs with Python based on standard Python type hints.

The key features are:

* **Fast**: Very high performance, on par with **NodeJS** and **Go** (thanks to Starlette and Pydantic). [One of the fastest Python frameworks available](#performance).
* **Fast to code**: Increase the speed to develop features by about 200% to 300%. *

---

FastAPI is a modern, fast (high-performance), web framework for building APIs with Python based on standard Python type hints.

The key features are:

* **Fast**: Very high performance, on par with **NodeJS** and **Go** (thanks to Starlette and Pydantic). [One of the fastest Python frameworks available](#performance).
* **Fast to code**: Increase the speed to develop features by about 200% to 300%. *

And that's the same level of performance you get with **FastAPI**.

And as you can have parallelism and asynchronicity at the same time, you get higher performance than most of the tested NodeJS frameworks and on par with Go, which is a compiled language closer to C <a href="https://www.techempower.com/benchmarks/#section=data-r17&hw=ph&test=query&l=zijmkf-1" class="external-link" target="_blank">(all thanks to Starlette)</a>.

### Reiniciar Después del Colapso { #restart-after-crash }

Pero en esos casos con errores realmente malos que colapsan el **proceso en ejecución**, querrías un componente externo encargado de **reiniciar** el proceso, al menos un par de veces...

/// tip | Consejo

// Submitted by Rémy Léone <******@****.***>
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Activar un entorno virtual también cambia un par de otras cosas, pero esta es una de las cosas más importantes que hace.

## Verificando un Entorno Virtual { #checking-a-virtual-environment }

Cuando revisas si un entorno virtual está activo, por ejemplo con:

Y ese es el mismo nivel de rendimiento que obtienes con **FastAPI**.

Y como puedes tener paralelismo y asincronía al mismo tiempo, obtienes un mayor rendimiento que la mayoría de los frameworks de NodeJS probados y a la par con Go, que es un lenguaje compilado más cercano a C <a href="https://www.techempower.com/benchmarks/#section=data-r17&hw=ph&test=query&l=zijmkf-1" class="external-link" target="_blank">(todo gracias a Starlette)</a>.

		// Testing listing with prefix set to "ney" (Test number 41).
		{bucketNames[2], "ney", "", "", "", 100, listMultipartResults[27], nil, true},
		// Testing listing with prefix set to "par" (Test number 42).
		{bucketNames[2], "parrot", "", "", "", 100, listMultipartResults[28], nil, true},
		// Testing listing with prefix set to object name "neymar.jpeg" (Test number 43).

1C9D          ; mapped                 ; 10DD          # 11.0 GEORGIAN MTAVRULI CAPITAL LETTER ON
1C9E          ; mapped                 ; 10DE          # 11.0 GEORGIAN MTAVRULI CAPITAL LETTER PAR
1C9F          ; mapped                 ; 10DF          # 11.0 GEORGIAN MTAVRULI CAPITAL LETTER ZHAR
1CA0          ; mapped                 ; 10E0          # 11.0 GEORGIAN MTAVRULI CAPITAL LETTER RAE