> ## 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.

# Swap If Else Branches

#### Sourcery refactoring id: `swap-if-else-branches`

#### Description:

Swaps `if` and `else` branches of conditionals

#### Before:

```python
if location == OUTSIDE:
    pass
else:
    take_off_hat()
```

#### After:

```python
if location != OUTSIDE:
    take_off_hat()
else:
    pass
```

#### Explanation:

One pattern we sometimes see is a conditional where nothing happens in the main
body, and all of the action is in the `else` clause.

In this case we can make the code shorter and more concise by swapping the main
body and the `else` around. We have to make sure to invert the conditional, then
the logic from the `else` clause moves into the main body.

We then have an `else` clause which does nothing, so we can remove it.

```python
if location != OUTSIDE:
    take_off_hat()
```

This is easier to read, and the intent of the conditional is clearer. When
reading the code I don't have to mentally invert it to understand it, since that
has been done for me.

Sourcery will also make this change if the `else` can be dropped since the body
of the `if` is a guard condition.