py-08-pydantic-orders

1.000

9/9 tests· lib-knowledge

Proposed solution

```python
from pydantic import BaseModel, Field, computed_field

class Order(BaseModel):
    id: int
    customer: str = Field(min_length=1)
    quantity: int = Field(gt=0)
    unit_price: float = Field(ge=0)
    
    @computed_field(return_type=float)
    @property
    def total(self) -> float:
        return self.quantity * self.unit_price

def parse_orders(rows: list[dict]) -> list[Order]:
    return [Order(**row) for row in rows]
```

Test output (stdout)

.........                                                                [100%]
9 passed in 0.05s

System prompt

You are an expert programmer. Solve the task exactly as specified. Output your solution as fenced code blocks using the required file name(s) and the exact function/type signatures requested. Prefer correctness; do not include prose outside code unless asked.