Gen-AI Developer Classroom notes 09/Dec/2025

Pydantic

  • Refer Here for pydantic
  • This is popular library for handling data models with validations

Pydantic Tutorial

  • Install pydantic package uv add pydantic
  • Create a notebook .ipynb
  • Ensure python and Jupyter extensions from microsoft are installed into vscode
  • Refer Here for validators
  • Prompt for learning pydantic
You are an expert python programmer, I'm learning and today i want to try pydantic. Give me examples to use existing and custom validations in both v1 and v2 . Give me one example wait for me to execute then go to next
  • Exercise: try to comeup with Order Model
{
    "orderId": "ORD_64829",
    "customerId": "CUST_144644",
    "customerName": "Isha Kapoor",
    "orderDate": "2025-12-08T02:32:07.348249",
    "status": "delivered",
    "restaurant": {
      "name": "Domino's Pizza",
      "restaurantId": "REST_99294",
      "location": "Gachibowli, Hyderabad",
      "rating": 4.5,
      "deliveryTime": "23 mins"
    },
    "items": [
      {
        "name": "Choco Lava Cake",
        "quantity": 1,
        "price": 89.0,
        "customizations": []
      }
    ],
    "pricing": {
      "itemTotal": 89.0,
      "deliveryFee": 0.0,
      "platformFee": 5.0,
      "gst": 4.45,
      "discount": 8.9,
      "totalAmount": 89.55
    },
    "payment": {
      "method": "UPI",
      "transactionId": "TXN_86705151",
      "status": "paid"
    },
    "deliveryAddress": {
      "label": "Home",
      "address": "Flat 402, Green Valley Apartments, Road No 12, Banjara Hills",
      "city": "Hyderabad",
      "pincode": "500034"
    },
    "deliveryPartner": {
      "name": "Sanjay Reddy",
      "rating": 4.9,
      "phone": "+91-0803842694"
    },
    "timeline": {
      "orderPlaced": "2025-12-08T02:32:07.348249",
      "restaurantAccepted": "2025-12-08T02:32:07.348249",
      "foodReady": "2025-12-08T02:32:07.348249",
      "outForDelivery": "2025-12-08T02:32:07.348249",
      "delivered": "2025-12-08T02:32:07.348249"
    },
    "ratings": {
      "food": 5,
      "delivery": 4,
      "review": "Pretty good!"
    }
  }

By continuous learner

enthusiastic technology learner

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