> ## Documentation Index
> Fetch the complete documentation index at: https://docs.sourcery.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Or-If-Exp-Identity

#### Sourcery rule id: `or-if-exp-identity`

#### Description

Replace if-expression with `or`


#### Before

```python
currency = input_currency if input_currency else DEFAULT_CURRENCY
```

#### After

```python
currency = input_currency or DEFAULT_CURRENCY
```



#### Explanation

Here we find ourselves setting a value if it evaluates to `True`, and otherwise
using a default.

The 'After' case is a bit easier to read and avoids the duplication of
`input_currency`.

It works because the left-hand side is evaluated first. If it evaluates to
true then `currency` will be set to this and the right-hand side will not be
evaluated. If it evaluates to false the right-hand side will be evaluated and
`currency` will be set to `DEFAULT_CURRENCY`.