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---
title: "Quick Python: Dataclasses"
date: 2020-04-08T18:59:48-04:00
draft: false
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tags: ["Python"]
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medium_enabled: true
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---
Python 3.7 and above have a feature called dataclasses. This allows us to reduce boilerplate code by removing the need to create a whole constructor and providing a sensible `__repr__` function.
```python
from dataclasses import dataclass
@dataclass
class Person:
name: str
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age: int = 0
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```
Usage:
```python
p = Person("Bob", 30)
print(p)
```
```
Person(name='Bob', age=20)
```
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To make an attribute have a default value, add it after the type declaration like I have with `age` .
