Weller

Installation:

pip install weller

What is it?

weller it's a modern library for caching. It add a TTL cache per item, auto values refresh and also so easy interface for ruling this

What it includes:

• Weller - a automatic dispatcher for your perfect cache
• StrictCached and LazyCached - a simply TTL cache per item
• StrictAutoCached and LazyAutoCached - the same as the upper one, but with automatic values refresh

Strict and Lazy difference

This library has the concept of strict and lazy caches.

• First, the Lazy, deletes or refreshes only the data that you receive
• Second, the Strict, deletes or refreshes all data from a storage per any request

Usage examples:

import asyncio
from typing import Any, Annotated

from weller import Weller, Depends
from weller.dispather.storage import WellerMemoryStorage


storage = WellerMemoryStorage()


# If first_long = True, then first get of data will download all the data. Default False
weller = Weller(storage=storage, first_long=False)

async def get_db() -> dict[str, Any]:
    return {"some_key": "some_data"}


@weller.add("some_long", duration=5)
async def get_long_data(db: Annotated[dict, Depends(get_db)]):
    await asyncio.sleep(2)

    return db.get("some_key")


async def main():
    await weller.get("some_long")  # it will take 2 seconds
    await weller.get("some_long")  # but it will be done instantly

    
asyncio.run(main())

You can see other examples in weller -> examples

Documentation:

In development and will be available soon

Roadmap:

• Add redis storage
• Work and with stability and security