Pydantic v2 — your contract layer — FastAPI Production

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Task

📝 **Predict** the result:

```python
from pydantic import BaseModel, Field

class Order(BaseModel):
    qty: int = Field(..., gt=0)

try:
    Order(qty=-3)
except Exception as e:
    print("error" if "greater" in str(e).lower() else "ok")
```

Keep going

⚡quiz

Async, properly

⚡quiz

Dependency injection — FastAPI's killer feature

⚡predict

SQLAlchemy 2.0 async — the new normal

🤖predictFREE

Prerequisites — what you should know before this track

📊quizFREE

Why pandas?

🔮 Predict the output

Read the code carefully

from pydantic import BaseModel, Field

class Order(BaseModel):
    qty: int = Field(..., gt=0)

try:
    Order(qty=-3)
except Exception as e:
    print("error" if "greater" in str(e).lower() else "ok")

What will the program print? Write here:

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💬 Discussion