## RunnerBackend.RunnerBackend


Backend used to execute computational jobs.


Usage

``` python
RunnerBackend.RunnerBackend()
```


Backends define how jobs registered in a [Registry](Registry.Registry.md#pyrallex.Registry.Registry) are executed. Implementations may execute jobs sequentially, in separate processes, or using other parallelization mechanisms.


## Methods

| Name | Description |
|----|----|
| [__repr__()](#__repr__) | Return official string representation, which is aimed at programmers as they develop and maintain a program. |
| [__str__()](#__str__) | Return informal readable string representation. |

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#### \_\_repr\_\_()


Return official string representation, which is aimed at programmers as they develop and maintain a program.


Usage

``` python
__repr__()
```


##### Returns


`str`  
Technical string representation.


------------------------------------------------------------------------


#### \_\_str\_\_()


Return informal readable string representation.


Usage

``` python
__str__()
```


##### Returns


`str`  
Human-readbale string representation.