<p>
Function literals are <i>closures</i>: they may refer to variables
defined in a surrounding function. Those variables are then shared between
the surrounding function and the function literal, and they survive as long
as they are accessible.
</p>


<h3 id="Primary_expressions">Primary expressions</h3>

<p>
Primary expressions are the operands for unary and binary expressions.
</p>

## 0.84.0

### Breaking Changes

This version of FastAPI drops support for Python 3.6. 🔥 Please upgrade to a supported version of Python (3.7 or above), Python 3.6 reached the end-of-life a long time ago. 😅☠

* 🔧 Update package metadata, drop support for Python 3.6, move build internals from Flit to Hatch. PR [#5240](https://github.com/tiangolo/fastapi/pull/5240) by [@ofek](https://github.com/ofek).

## 0.83.0