> ## 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.

# Simplify Dictionary Update

#### Sourcery refactoring id: `simplify-dictionary-update`

#### Description:

Add single value to dictionary directly rather than using update()

#### Before:

```python
def foo(d: dict) -> None:
    d.update({"request": HttpRequest()})
    frobnicate(d)
```

#### After:

```python
def foo(d: dict) -> None:
    d["request"] = HttpRequest()
    frobnicate(d)
```

#### Explanation:

When we are just adding one entry to a dictionary it is simpler to do it
directly rather than via the `update()` method. This also eliminates the
overhead of constructing another dictionary and calling a method, so should
slightly improve performance.