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***

# Currency

Currency definitions that are based on the [ISO4217](https://en.wikipedia.org/wiki/ISO_4217).

## ISO4217

**Bases:** [`str`](https://docs.python.org/3/builtins/stdtypes.html#str)

ISO4217 parses Currency in the [ISO 4217](https://en.wikipedia.org/wiki/ISO_4217) format.

```py
from pydantic import BaseModel

from pydantic_extra_types.currency_code import ISO4217


class Currency(BaseModel):
    alpha_3: ISO4217


currency = Currency(alpha_3='AED')
print(currency)
# > alpha_3='AED'
```

## Currency

**Bases:** [`str`](https://docs.python.org/3/builtins/stdtypes.html#str)

Currency parses currency subset of the [ISO 4217](https://en.wikipedia.org/wiki/ISO_4217) format. It excludes bonds testing codes and precious metals.

```py
from pydantic import BaseModel

from pydantic_extra_types.currency_code import Currency


class currency(BaseModel):
    alpha_3: Currency


cur = currency(alpha_3='AED')
print(cur)
# > alpha_3='AED'
```

## Related pages

- [API Documentation](./api-documentation-index.md)
- [Concepts](./concepts-index.md)
- [Dev Tools](./dev-tools-index.md)
- [Error Messages](./error-messages-index.md)
- [Examples](./examples-index.md)
- [Integrations](./integrations-index.md)
- [Internals](./internals-index.md)
- [Production Tools](./production-tools-index.md)
- [Pydantic](./pydantic-index.md)
- [Pydantic Core](./pydantic-core-index.md)

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