# Bind functions and instances

**🟢 Beginner · Lesson 03**

Spells are not only classes - functions and ready-made objects bind with the same verb. RUNTIME LAW (proven by the harness): callable and pre-built spells are always "unique" - the factory runs once and its product is shared; instances are already built.

## Before you run

Use the [Beginner guide](../../beginner/index.md) for prerequisite concepts. Run from a checkout with Melder installed and Python 3.14 free-threading selected. The collection download includes the level's local helper modules.

## Run the saved script

```bash
python UX_and_AIX_experiences/01_beginner/03_bind_functions_and_instances.py
```

```powershell
py -3.14t UX_and_AIX_experiences/01_beginner/03_bind_functions_and_instances.py
```

{download}`Download this collection <../../downloads/beginner-examples.zip>` · [Source on GitHub](https://github.com/Synaptic724/melder/blob/90d52e0a12cb0743d62568d5a19ce954a54443bc/UX_and_AIX_experiences/01_beginner/03_bind_functions_and_instances.py)

## Public surface

function spells, instance spells, string vocabulary

## Code

```{literalinclude} ../../downloads/01_beginner/03_bind_functions_and_instances.py
:language: python
:linenos:
```

## Check the outcome

The script contains its own assertions or demonstrated refusal paths. Run it to evaluate those checks against your installed version. The code above is taken directly from the saved file; no run output is invented here.

[More beginner examples](index.md) · [Level guide](../../beginner/index.md)

## Related guides

- [What you can bind](../../beginner/registration.md)