enumerate with asyncio in Python

enumerate_async.py

from typing import AsyncIterable


async def enumerate_async[T](iterable: AsyncIterable[T], start=0) -> tuple[int, T]:
    counter = start
    async for item in iterable:
        yield counter, item
        counter += 1

# example usage
import aiofiles

async with aiofiles.open('some_boring_file', 'r') as f:
  async for i, line in enumerate_async(f):
    do_something_with_index(i)
    do_something_with_file(line)
    

z_LICENSE

Copyright 2024 Paul Durivage <[email protected]>

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.