freeCodeCamp/guide/spanish/python/bool-function/index.md

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2018-10-12 19:37:13 +00:00
---
title: Python Bool Function
localeTitle: Función Python Bool
---
`bool()` es una función incorporada en Python 3. Esta función devuelve un valor booleano, es decir, Verdadero o Falso. Se necesita un argumento, `x` .
## Argumentos
Se necesita un argumento, `x` . `x` se convierte utilizando el [procedimiento de prueba de verdad](https://docs.python.org/3/library/stdtypes.html#truth) estándar.
## Valor de retorno
Si `x` es falso u omitido, esto devuelve `False` ; De lo contrario, devuelve `True` .
## Ejemplo de código
```
print(bool(4 > 2)) # Returns True as 4 is greater than 2
print(bool(4 < 2)) # Returns False as 4 is not less than 2
print(bool(4 == 4)) # Returns True as 4 is equal to 4
print(bool(4 != 4)) # Returns False as 4 is equal to 4 so inequality doesn't holds
print(bool(4)) # Returns True as 4 is a non-zero value
print(bool(-4)) # Returns True as -4 is a non-zero value
print(bool(0)) # Returns False as it is a zero value
print(bool('dskl')) # Returns True as the string is a non-zero value
print(bool([1, 2, 3])) # Returns True as the list is a non-zero value
print(bool((2,3,4))) # Returns True as tuple is a non-zero value
print(bool([])) # Returns False as list is empty and equal to 0 according to truth value testing
```
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[Documentos oficiales](https://docs.python.org/3/library/functions.html#bool)