## errors.ReservedColumnError


A column name is in the reserved `dy_` namespace.


Usage

``` python
errors.ReservedColumnError(
    schema_name,
    columns,
)
```


Raised at definition time, because the column would share a name with a check or a rule column this package generates.


## Methods

| Name | Description |
|----|----|
| [__init__()](#__init__) | Name only the columns in the namespace. |

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


#### \_\_init\_\_()


Name only the columns in the namespace.


Usage

``` python
__init__(schema_name, columns)
```