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Python 3.13 · Visual Studio 2026 · .NET AI
Master Python from
Script to Production
40 structured lessons taking you from your first Python script all the way to building data pipelines, REST APIs, AI applications, and deploying to the cloud — all inside Visual Studio 2026.
1# Python 3.13 — type hints, dataclasses, async generators
2from dataclasses import dataclass, field
3from typing import AsyncGenerator
4import asyncio
5
6@dataclass
7class Product:
8 name: str
9 price: float
10 tags: list[str] = field(default_factory=list)
11
12async def fetch_deals(products: list[Product]) -> AsyncGenerator[Product, None]:
13 for p in products:
14 await asyncio.sleep(0) # yield control
15 if p.price < 50.0:
16 yield p
17
18async def main():
19 catalog = [Product("Widget", 29.99), Product("Gadget", 99.00)]
20 async for deal in fetch_deals(catalog):
21 print(f"Deal: {deal.name} at ${deal.price}")
22
23asyncio.run(main())