When is Python's async SDK going to come out?

[ianliu]

I'm wondering when is boto3 going to provide an async SDK for Python. From what I've seen, all other major language SDK's support async, for example:

• C#: https://docs.aws.amazon.com/sdk-for-net/v3/developer-guide/sdk-net-async-api.html
• Java: https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/asynchronous.html
• JavaScript: https://docs.aws.amazon.com/sdk-for-javascript/v3/developer-guide/using-async-await.html
• Rust (developer preview): https://aws.amazon.com/about-aws/whats-new/2021/12/aws-sdk-rust-developer-preview/

Python introduced the asyncio module in version 3.4, which was released in 2014.

The need for an async python SDK is so strong, many python packages depends on aibotocore, which itself depends on a very specific version of botocore (usually behind the latest botocore version). This adds a lot of headaches for packages which want to depend on both aiobotocore and boto3.

Here is an example of what I mean:

$ poetry new foo && cd foo
$ poetry add 'dask_cloudprovider[aws]' boto3

Output

Using version ^2022.10.0 for dask-cloudprovider
Using version ^1.26.30 for boto3

Updating dependencies
Resolving dependencies... (1.6s)

Because no versions of aiobotocore match >0.10.2,<0.10.3 || >0.10.3,<0.10.4 || >0.10.4,<0.11.0 || >0.11.0,<0.11.1 || >0.11.1,<0.12.0 || >0.12.0,<1.0.0 || >1.0.0,<1.0.1 || >1.0.1,<1.0.2 || >1.0.2,<1.0.3 || >1.0.3,<1.0.4 || >1.0.4,<1.0.5 || >1.0.5,<1.0.6 || >1.0.6,<1.0.7 || >1.0.7,<1.1.0 || >1.1.0,<1.1.1 || >1.1.1,<1.1.2 || >1.1.2,<1.2.0 || >1.2.0,<1.2.1 || >1.2.1,<1.2.2 || >1.2.2,<1.3.0 || >1.3.0,<1.3.1 || >1.3.1,<1.3.2 || >1.3.2,<1.3.3 || >1.3.3,<1.4.0 || >1.4.0,<1.4.1 || >1.4.1,<1.4.2 || >1.4.2,<2.0.0 || >2.0.0,<2.0.1 || >2.0.1,<2.1.0 || >2.1.0,<2.1.1 || >2.1.1,<2.1.2 || >2.1.2,<2.2.0 || >2.2.0,<2.3.0 || >2.3.0,<2.3.1 || >2.3.1,<2.3.2 || >2.3.2,<2.3.3 || >2.3.3,<2.3.4 || >2.3.4,<2.4.0 || >2.4.0,<2.4.1 || >2.4.1
 and aiobotocore (0.10.2) depends on botocore (>=1.12.91,<1.12.92), aiobotocore (>=0.10.2,<0.10.3 || >0.10.3,<0.10.4 || >0.10.4,<0.11.0 || >0.11.0,<0.11.1 || >0.11.1,<0.12.0 || >0.12.0,<1.0.0 || >1.0.0,<1.0.1 || >1.0.1,<1.0.2 || >1.0.2,<1.0.3 || >1.0.3,<1.0.4 || >1.0.4,<1.0.5 || >1.0.5,<1.0.6 || >1.0.6,<1.0.7 || >1.0.7,<1.1.0 || >1.1.0,<1.1.1 || >1.1.1,<1.1.2 || >1.1.2,<1.2.0 || >1.2.0,<1.2.1 || >1.2.1,<1.2.2 || >1.2.2,<1.3.0 || >1.3.0,<1.3.1 || >1.3.1,<1.3.2 || >1.3.2,<1.3.3 || >1.3.3,<1.4.0 || >1.4.0,<1.4.1 || >1.4.1,<1.4.2 || >1.4.2,<2.0.0 || >2.0.0,<2.0.1 || >2.0.1,<2.1.0 || >2.1.0,<2.1.1 || >2.1.1,<2.1.2 || >2.1.2,<2.2.0 || >2.2.0,<2.3.0 || >2.3.0,<2.3.1 || >2.3.1,<2.3.2 || >2.3.2,<2.3.3 || >2.3.3,<2.3.4 || >2.3.4,<2.4.0 || >2.4.0,<2.4.1 || >2.4.1) requires botocore (>=1.12.91,<1.12.92).
And because aiobotocore (0.10.3) depends on botocore (>=1.12.189,<1.12.190), aiobotocore (>=0.10.2,<0.10.4 || >0.10.4,<0.11.0 || >0.11.0,<0.11.1 || >0.11.1,<0.12.0 || >0.12.0,<1.0.0 || >1.0.0,<1.0.1 || >1.0.1,<1.0.2 || >1.0.2,<1.0.3 || >1.0.3,<1.0.4 || >1.0.4,<1.0.5 || >1.0.5,<1.0.6 || >1.0.6,<1.0.7 || >1.0.7,<1.1.0 || >1.1.0,<1.1.1 || >1.1.1,<1.1.2 || >1.1.2,<1.2.0 || >1.2.0,<1.2.1 || >1.2.1,<1.2.2 || >1.2.2,<1.3.0 || >1.3.0,<1.3.1 || >1.3.1,<1.3.2 || >1.3.2,<1.3.3 || >1.3.3,<1.4.0 || >1.4.0,<1.4.1 || >1.4.1,<1.4.2 || >1.4.2,<2.0.0 || >2.0.0,<2.0.1 || >2.0.1,<2.1.0 || >2.1.0,<2.1.1 || >2.1.1,<2.1.2 || >2.1.2,<2.2.0 || >2.2.0,<2.3.0 || >2.3.0,<2.3.1 || >2.3.1,<2.3.2 || >2.3.2,<2.3.3 || >2.3.3,<2.3.4 || >2.3.4,<2.4.0 || >2.4.0,<2.4.1 || >2.4.1) requires botocore (>=1.12.91,<1.12.92 || >=1.12.189,<1.12.190).
And because aiobotocore (0.10.4) depends on botocore (>=1.12.252,<1.12.253)
 and aiobotocore (0.11.0) depends on botocore (>=1.13.14,<1.13.15), aiobotocore (>=0.10.2,<0.11.1 || >0.11.1,<0.12.0 || >0.12.0,<1.0.0 || >1.0.0,<1.0.1 || >1.0.1,<1.0.2 || >1.0.2,<1.0.3 || >1.0.3,<1.0.4 || >1.0.4,<1.0.5 || >1.0.5,<1.0.6 || >1.0.6,<1.0.7 || >1.0.7,<1.1.0 || >1.1.0,<1.1.1 || >1.1.1,<1.1.2 || >1.1.2,<1.2.0 || >1.2.0,<1.2.1 || >1.2.1,<1.2.2 || >1.2.2,<1.3.0 || >1.3.0,<1.3.1 || >1.3.1,<1.3.2 || >1.3.2,<1.3.3 || >1.3.3,<1.4.0 || >1.4.0,<1.4.1 || >1.4.1,<1.4.2 || >1.4.2,<2.0.0 || >2.0.0,<2.0.1 || >2.0.1,<2.1.0 || >2.1.0,<2.1.1 || >2.1.1,<2.1.2 || >2.1.2,<2.2.0 || >2.2.0,<2.3.0 || >2.3.0,<2.3.1 || >2.3.1,<2.3.2 || >2.3.2,<2.3.3 || >2.3.3,<2.3.4 || >2.3.4,<2.4.0 || >2.4.0,<2.4.1 || >2.4.1) requires botocore (>=1.12.91,<1.12.92 || >=1.12.189,<1.12.190 || >=1.12.252,<1.12.253 || >=1.13.14,<1.13.15).
And because aiobotocore (0.11.1) depends on botocore (>=1.13.14,<1.13.15)
 and aiobotocore (0.12.0) depends on botocore (>=1.15.3,<1.15.16), aiobotocore (>=0.10.2,<1.0.0 || >1.0.0,<1.0.1 || >1.0.1,<1.0.2 || >1.0.2,<1.0.3 || >1.0.3,<1.0.4 || >1.0.4,<1.0.5 || >1.0.5,<1.0.6 || >1.0.6,<1.0.7 || >1.0.7,<1.1.0 || >1.1.0,<1.1.1 || >1.1.1,<1.1.2 || >1.1.2,<1.2.0 || >1.2.0,<1.2.1 || >1.2.1,<1.2.2 || >1.2.2,<1.3.0 || >1.3.0,<1.3.1 || >1.3.1,<1.3.2 || >1.3.2,<1.3.3 || >1.3.3,<1.4.0 || >1.4.0,<1.4.1 || >1.4.1,<1.4.2 || >1.4.2,<2.0.0 || >2.0.0,<2.0.1 || >2.0.1,<2.1.0 || >2.1.0,<2.1.1 || >2.1.1,<2.1.2 || >2.1.2,<2.2.0 || >2.2.0,<2.3.0 || >2.3.0,<2.3.1 || >2.3.1,<2.3.2 || >2.3.2,<2.3.3 || >2.3.3,<2.3.4 || >2.3.4,<2.4.0 || >2.4.0,<2.4.1 || >2.4.1) requires botocore (>=1.12.91,<1.12.92 || >=1.12.189,<1.12.190 || >=1.12.252,<1.12.253 || >=1.13.14,<1.13.15 || >=1.15.3,<1.15.16).
And because aiobotocore (1.0.0) depends on botocore (>=1.15.32,<1.15.33)
 and aiobotocore (1.0.1) depends on botocore (>=1.15.32,<1.15.33), aiobotocore (>=0.10.2,<1.0.2 || >1.0.2,<1.0.3 || >1.0.3,<1.0.4 || >1.0.4,<1.0.5 || >1.0.5,<1.0.6 || >1.0.6,<1.0.7 || >1.0.7,<1.1.0 || >1.1.0,<1.1.1 || >1.1.1,<1.1.2 || >1.1.2,<1.2.0 || >1.2.0,<1.2.1 || >1.2.1,<1.2.2 || >1.2.2,<1.3.0 || >1.3.0,<1.3.1 || >1.3.1,<1.3.2 || >1.3.2,<1.3.3 || >1.3.3,<1.4.0 || >1.4.0,<1.4.1 || >1.4.1,<1.4.2 || >1.4.2,<2.0.0 || >2.0.0,<2.0.1 || >2.0.1,<2.1.0 || >2.1.0,<2.1.1 || >2.1.1,<2.1.2 || >2.1.2,<2.2.0 || >2.2.0,<2.3.0 || >2.3.0,<2.3.1 || >2.3.1,<2.3.2 || >2.3.2,<2.3.3 || >2.3.3,<2.3.4 || >2.3.4,<2.4.0 || >2.4.0,<2.4.1 || >2.4.1) requires botocore (>=1.12.91,<1.12.92 || >=1.12.189,<1.12.190 || >=1.12.252,<1.12.253 || >=1.13.14,<1.13.15 || >=1.15.3,<1.15.16 || >=1.15.32,<1.15.33).
And because aiobotocore (1.0.2) depends on botocore (>=1.15.32,<1.15.33)
 and aiobotocore (1.0.3) depends on botocore (>=1.15.32,<1.15.33), aiobotocore (>=0.10.2,<1.0.4 || >1.0.4,<1.0.5 || >1.0.5,<1.0.6 || >1.0.6,<1.0.7 || >1.0.7,<1.1.0 || >1.1.0,<1.1.1 || >1.1.1,<1.1.2 || >1.1.2,<1.2.0 || >1.2.0,<1.2.1 || >1.2.1,<1.2.2 || >1.2.2,<1.3.0 || >1.3.0,<1.3.1 || >1.3.1,<1.3.2 || >1.3.2,<1.3.3 || >1.3.3,<1.4.0 || >1.4.0,<1.4.1 || >1.4.1,<1.4.2 || >1.4.2,<2.0.0 || >2.0.0,<2.0.1 || >2.0.1,<2.1.0 || >2.1.0,<2.1.1 || >2.1.1,<2.1.2 || >2.1.2,<2.2.0 || >2.2.0,<2.3.0 || >2.3.0,<2.3.1 || >2.3.1,<2.3.2 || >2.3.2,<2.3.3 || >2.3.3,<2.3.4 || >2.3.4,<2.4.0 || >2.4.0,<2.4.1 || >2.4.1) requires botocore (>=1.12.91,<1.12.92 || >=1.12.189,<1.12.190 || >=1.12.252,<1.12.253 || >=1.13.14,<1.13.15 || >=1.15.3,<1.15.16 || >=1.15.32,<1.15.33).
And because aiobotocore (1.0.4) depends on botocore (>=1.15.32,<1.15.33)
 and aiobotocore (1.0.5) depends on botocore (>=1.15.32,<1.15.33), aiobotocore (>=0.10.2,<1.0.6 || >1.0.6,<1.0.7 || >1.0.7,<1.1.0 || >1.1.0,<1.1.1 || >1.1.1,<1.1.2 || >1.1.2,<1.2.0 || >1.2.0,<1.2.1 || >1.2.1,<1.2.2 || >1.2.2,<1.3.0 || >1.3.0,<1.3.1 || >1.3.1,<1.3.2 || >1.3.2,<1.3.3 || >1.3.3,<1.4.0 || >1.4.0,<1.4.1 || >1.4.1,<1.4.2 || >1.4.2,<2.0.0 || >2.0.0,<2.0.1 || >2.0.1,<2.1.0 || >2.1.0,<2.1.1 || >2.1.1,<2.1.2 || >2.1.2,<2.2.0 || >2.2.0,<2.3.0 || >2.3.0,<2.3.1 || >2.3.1,<2.3.2 || >2.3.2,<2.3.3 || >2.3.3,<2.3.4 || >2.3.4,<2.4.0 || >2.4.0,<2.4.1 || >2.4.1) requires botocore (>=1.12.91,<1.12.92 || >=1.12.189,<1.12.190 || >=1.12.252,<1.12.253 || >=1.13.14,<1.13.15 || >=1.15.3,<1.15.16 || >=1.15.32,<1.15.33).
And because aiobotocore (1.0.6) depends on botocore (>=1.15.32,<1.15.33)
 and aiobotocore (1.0.7) depends on botocore (>=1.15.32,<1.15.33), aiobotocore (>=0.10.2,<1.1.0 || >1.1.0,<1.1.1 || >1.1.1,<1.1.2 || >1.1.2,<1.2.0 || >1.2.0,<1.2.1 || >1.2.1,<1.2.2 || >1.2.2,<1.3.0 || >1.3.0,<1.3.1 || >1.3.1,<1.3.2 || >1.3.2,<1.3.3 || >1.3.3,<1.4.0 || >1.4.0,<1.4.1 || >1.4.1,<1.4.2 || >1.4.2,<2.0.0 || >2.0.0,<2.0.1 || >2.0.1,<2.1.0 || >2.1.0,<2.1.1 || >2.1.1,<2.1.2 || >2.1.2,<2.2.0 || >2.2.0,<2.3.0 || >2.3.0,<2.3.1 || >2.3.1,<2.3.2 || >2.3.2,<2.3.3 || >2.3.3,<2.3.4 || >2.3.4,<2.4.0 || >2.4.0,<2.4.1 || >2.4.1) requires botocore (>=1.12.91,<1.12.92 || >=1.12.189,<1.12.190 || >=1.12.252,<1.12.253 || >=1.13.14,<1.13.15 || >=1.15.3,<1.15.16 || >=1.15.32,<1.15.33).
And because aiobotocore (1.1.0) depends on botocore (>=1.17.44,<1.17.45)
 and aiobotocore (1.1.1) depends on botocore (>=1.17.44,<1.17.45), aiobotocore (>=0.10.2,<1.1.2 || >1.1.2,<1.2.0 || >1.2.0,<1.2.1 || >1.2.1,<1.2.2 || >1.2.2,<1.3.0 || >1.3.0,<1.3.1 || >1.3.1,<1.3.2 || >1.3.2,<1.3.3 || >1.3.3,<1.4.0 || >1.4.0,<1.4.1 || >1.4.1,<1.4.2 || >1.4.2,<2.0.0 || >2.0.0,<2.0.1 || >2.0.1,<2.1.0 || >2.1.0,<2.1.1 || >2.1.1,<2.1.2 || >2.1.2,<2.2.0 || >2.2.0,<2.3.0 || >2.3.0,<2.3.1 || >2.3.1,<2.3.2 || >2.3.2,<2.3.3 || >2.3.3,<2.3.4 || >2.3.4,<2.4.0 || >2.4.0,<2.4.1 || >2.4.1) requires botocore (>=1.12.91,<1.12.92 || >=1.12.189,<1.12.190 || >=1.12.252,<1.12.253 || >=1.13.14,<1.13.15 || >=1.15.3,<1.15.16 || >=1.15.32,<1.15.33 || >=1.17.44,<1.17.45).
And because aiobotocore (1.1.2) depends on botocore (>=1.17.44,<1.17.45)
 and aiobotocore (1.2.0) depends on botocore (>=1.19.52,<1.19.53), aiobotocore (>=0.10.2,<1.2.1 || >1.2.1,<1.2.2 || >1.2.2,<1.3.0 || >1.3.0,<1.3.1 || >1.3.1,<1.3.2 || >1.3.2,<1.3.3 || >1.3.3,<1.4.0 || >1.4.0,<1.4.1 || >1.4.1,<1.4.2 || >1.4.2,<2.0.0 || >2.0.0,<2.0.1 || >2.0.1,<2.1.0 || >2.1.0,<2.1.1 || >2.1.1,<2.1.2 || >2.1.2,<2.2.0 || >2.2.0,<2.3.0 || >2.3.0,<2.3.1 || >2.3.1,<2.3.2 || >2.3.2,<2.3.3 || >2.3.3,<2.3.4 || >2.3.4,<2.4.0 || >2.4.0,<2.4.1 || >2.4.1) requires botocore (>=1.12.91,<1.12.92 || >=1.12.189,<1.12.190 || >=1.12.252,<1.12.253 || >=1.13.14,<1.13.15 || >=1.15.3,<1.15.16 || >=1.15.32,<1.15.33 || >=1.17.44,<1.17.45 || >=1.19.52,<1.19.53).
And because aiobotocore (1.2.1) depends on botocore (>=1.19.52,<1.19.53)
 and aiobotocore (1.2.2) depends on botocore (>=1.19.52,<1.19.53), aiobotocore (>=0.10.2,<1.3.0 || >1.3.0,<1.3.1 || >1.3.1,<1.3.2 || >1.3.2,<1.3.3 || >1.3.3,<1.4.0 || >1.4.0,<1.4.1 || >1.4.1,<1.4.2 || >1.4.2,<2.0.0 || >2.0.0,<2.0.1 || >2.0.1,<2.1.0 || >2.1.0,<2.1.1 || >2.1.1,<2.1.2 || >2.1.2,<2.2.0 || >2.2.0,<2.3.0 || >2.3.0,<2.3.1 || >2.3.1,<2.3.2 || >2.3.2,<2.3.3 || >2.3.3,<2.3.4 || >2.3.4,<2.4.0 || >2.4.0,<2.4.1 || >2.4.1) requires botocore (>=1.12.91,<1.12.92 || >=1.12.189,<1.12.190 || >=1.12.252,<1.12.253 || >=1.13.14,<1.13.15 || >=1.15.3,<1.15.16 || >=1.15.32,<1.15.33 || >=1.17.44,<1.17.45 || >=1.19.52,<1.19.53).
And because aiobotocore (1.3.0) depends on botocore (>=1.20.49,<1.20.50)
 and aiobotocore (1.3.1) depends on botocore (>=1.20.49,<1.20.50), aiobotocore (>=0.10.2,<1.3.2 || >1.3.2,<1.3.3 || >1.3.3,<1.4.0 || >1.4.0,<1.4.1 || >1.4.1,<1.4.2 || >1.4.2,<2.0.0 || >2.0.0,<2.0.1 || >2.0.1,<2.1.0 || >2.1.0,<2.1.1 || >2.1.1,<2.1.2 || >2.1.2,<2.2.0 || >2.2.0,<2.3.0 || >2.3.0,<2.3.1 || >2.3.1,<2.3.2 || >2.3.2,<2.3.3 || >2.3.3,<2.3.4 || >2.3.4,<2.4.0 || >2.4.0,<2.4.1 || >2.4.1) requires botocore (>=1.12.91,<1.12.92 || >=1.12.189,<1.12.190 || >=1.12.252,<1.12.253 || >=1.13.14,<1.13.15 || >=1.15.3,<1.15.16 || >=1.15.32,<1.15.33 || >=1.17.44,<1.17.45 || >=1.19.52,<1.19.53 || >=1.20.49,<1.20.50).
And because aiobotocore (1.3.2) depends on botocore (>=1.20.106,<1.20.107)
 and aiobotocore (1.3.3) depends on botocore (>=1.20.106,<1.20.107), aiobotocore (>=0.10.2,<1.4.0 || >1.4.0,<1.4.1 || >1.4.1,<1.4.2 || >1.4.2,<2.0.0 || >2.0.0,<2.0.1 || >2.0.1,<2.1.0 || >2.1.0,<2.1.1 || >2.1.1,<2.1.2 || >2.1.2,<2.2.0 || >2.2.0,<2.3.0 || >2.3.0,<2.3.1 || >2.3.1,<2.3.2 || >2.3.2,<2.3.3 || >2.3.3,<2.3.4 || >2.3.4,<2.4.0 || >2.4.0,<2.4.1 || >2.4.1) requires botocore (>=1.12.91,<1.12.92 || >=1.12.189,<1.12.190 || >=1.12.252,<1.12.253 || >=1.13.14,<1.13.15 || >=1.15.3,<1.15.16 || >=1.15.32,<1.15.33 || >=1.17.44,<1.17.45 || >=1.19.52,<1.19.53 || >=1.20.49,<1.20.50 || >=1.20.106,<1.20.107).
And because aiobotocore (1.4.0) depends on botocore (>=1.20.106,<1.20.107)
 and aiobotocore (1.4.1) depends on botocore (>=1.20.106,<1.20.107), aiobotocore (>=0.10.2,<1.4.2 || >1.4.2,<2.0.0 || >2.0.0,<2.0.1 || >2.0.1,<2.1.0 || >2.1.0,<2.1.1 || >2.1.1,<2.1.2 || >2.1.2,<2.2.0 || >2.2.0,<2.3.0 || >2.3.0,<2.3.1 || >2.3.1,<2.3.2 || >2.3.2,<2.3.3 || >2.3.3,<2.3.4 || >2.3.4,<2.4.0 || >2.4.0,<2.4.1 || >2.4.1) requires botocore (>=1.12.91,<1.12.92 || >=1.12.189,<1.12.190 || >=1.12.252,<1.12.253 || >=1.13.14,<1.13.15 || >=1.15.3,<1.15.16 || >=1.15.32,<1.15.33 || >=1.17.44,<1.17.45 || >=1.19.52,<1.19.53 || >=1.20.49,<1.20.50 || >=1.20.106,<1.20.107).
And because aiobotocore (1.4.2) depends on botocore (>=1.20.106,<1.20.107)
 and aiobotocore (2.0.0) depends on botocore (>=1.22.8,<1.22.9), aiobotocore (>=0.10.2,<2.0.1 || >2.0.1,<2.1.0 || >2.1.0,<2.1.1 || >2.1.1,<2.1.2 || >2.1.2,<2.2.0 || >2.2.0,<2.3.0 || >2.3.0,<2.3.1 || >2.3.1,<2.3.2 || >2.3.2,<2.3.3 || >2.3.3,<2.3.4 || >2.3.4,<2.4.0 || >2.4.0,<2.4.1 || >2.4.1) requires botocore (>=1.12.91,<1.12.92 || >=1.12.189,<1.12.190 || >=1.12.252,<1.12.253 || >=1.13.14,<1.13.15 || >=1.15.3,<1.15.16 || >=1.15.32,<1.15.33 || >=1.17.44,<1.17.45 || >=1.19.52,<1.19.53 || >=1.20.49,<1.20.50 || >=1.20.106,<1.20.107 || >=1.22.8,<1.22.9).
And because aiobotocore (2.0.1) depends on botocore (>=1.22.8,<1.22.9)
 and aiobotocore (2.1.0) depends on botocore (>=1.23.24,<1.23.25), aiobotocore (>=0.10.2,<2.1.1 || >2.1.1,<2.1.2 || >2.1.2,<2.2.0 || >2.2.0,<2.3.0 || >2.3.0,<2.3.1 || >2.3.1,<2.3.2 || >2.3.2,<2.3.3 || >2.3.3,<2.3.4 || >2.3.4,<2.4.0 || >2.4.0,<2.4.1 || >2.4.1) requires botocore (>=1.12.91,<1.12.92 || >=1.12.189,<1.12.190 || >=1.12.252,<1.12.253 || >=1.13.14,<1.13.15 || >=1.15.3,<1.15.16 || >=1.15.32,<1.15.33 || >=1.17.44,<1.17.45 || >=1.19.52,<1.19.53 || >=1.20.49,<1.20.50 || >=1.20.106,<1.20.107 || >=1.22.8,<1.22.9 || >=1.23.24,<1.23.25).
And because aiobotocore (2.1.1) depends on botocore (>=1.23.24,<1.23.25)
 and aiobotocore (2.1.2) depends on botocore (>=1.23.24,<1.23.25), aiobotocore (>=0.10.2,<2.2.0 || >2.2.0,<2.3.0 || >2.3.0,<2.3.1 || >2.3.1,<2.3.2 || >2.3.2,<2.3.3 || >2.3.3,<2.3.4 || >2.3.4,<2.4.0 || >2.4.0,<2.4.1 || >2.4.1) requires botocore (>=1.12.91,<1.12.92 || >=1.12.189,<1.12.190 || >=1.12.252,<1.12.253 || >=1.13.14,<1.13.15 || >=1.15.3,<1.15.16 || >=1.15.32,<1.15.33 || >=1.17.44,<1.17.45 || >=1.19.52,<1.19.53 || >=1.20.49,<1.20.50 || >=1.20.106,<1.20.107 || >=1.22.8,<1.22.9 || >=1.23.24,<1.23.25).
And because aiobotocore (2.2.0) depends on botocore (>=1.24.21,<1.24.22)
 and aiobotocore (2.3.0) depends on botocore (>=1.24.21,<1.24.22), aiobotocore (>=0.10.2,<2.3.1 || >2.3.1,<2.3.2 || >2.3.2,<2.3.3 || >2.3.3,<2.3.4 || >2.3.4,<2.4.0 || >2.4.0,<2.4.1 || >2.4.1) requires botocore (>=1.12.91,<1.12.92 || >=1.12.189,<1.12.190 || >=1.12.252,<1.12.253 || >=1.13.14,<1.13.15 || >=1.15.3,<1.15.16 || >=1.15.32,<1.15.33 || >=1.17.44,<1.17.45 || >=1.19.52,<1.19.53 || >=1.20.49,<1.20.50 || >=1.20.106,<1.20.107 || >=1.22.8,<1.22.9 || >=1.23.24,<1.23.25 || >=1.24.21,<1.24.22).
And because aiobotocore (2.3.1) depends on botocore (>=1.24.21,<1.24.22)
 and aiobotocore (2.3.2) depends on botocore (>=1.24.21,<1.24.22), aiobotocore (>=0.10.2,<2.3.3 || >2.3.3,<2.3.4 || >2.3.4,<2.4.0 || >2.4.0,<2.4.1 || >2.4.1) requires botocore (>=1.12.91,<1.12.92 || >=1.12.189,<1.12.190 || >=1.12.252,<1.12.253 || >=1.13.14,<1.13.15 || >=1.15.3,<1.15.16 || >=1.15.32,<1.15.33 || >=1.17.44,<1.17.45 || >=1.19.52,<1.19.53 || >=1.20.49,<1.20.50 || >=1.20.106,<1.20.107 || >=1.22.8,<1.22.9 || >=1.23.24,<1.23.25 || >=1.24.21,<1.24.22).
And because aiobotocore (2.3.3) depends on botocore (>=1.24.21,<1.24.22)
 and aiobotocore (2.3.4) depends on botocore (>=1.24.21,<1.24.22), aiobotocore (>=0.10.2,<2.4.0 || >2.4.0,<2.4.1 || >2.4.1) requires botocore (>=1.12.91,<1.12.92 || >=1.12.189,<1.12.190 || >=1.12.252,<1.12.253 || >=1.13.14,<1.13.15 || >=1.15.3,<1.15.16 || >=1.15.32,<1.15.33 || >=1.17.44,<1.17.45 || >=1.19.52,<1.19.53 || >=1.20.49,<1.20.50 || >=1.20.106,<1.20.107 || >=1.22.8,<1.22.9 || >=1.23.24,<1.23.25 || >=1.24.21,<1.24.22).
And because aiobotocore (2.4.0) depends on botocore (>=1.27.59,<1.27.60)
 and aiobotocore (2.4.1) depends on botocore (>=1.27.59,<1.27.60), aiobotocore (>=0.10.2) requires botocore (>=1.12.91,<1.12.92 || >=1.12.189,<1.12.190 || >=1.12.252,<1.12.253 || >=1.13.14,<1.13.15 || >=1.15.3,<1.15.16 || >=1.15.32,<1.15.33 || >=1.17.44,<1.17.45 || >=1.19.52,<1.19.53 || >=1.20.49,<1.20.50 || >=1.20.106,<1.20.107 || >=1.22.8,<1.22.9 || >=1.23.24,<1.23.25 || >=1.24.21,<1.24.22 || >=1.27.59,<1.27.60).
Because no versions of boto3 match >1.26.30,<2.0.0
 and boto3 (1.26.30) depends on botocore (>=1.29.30,<1.30.0), boto3 (>=1.26.30,<2.0.0) requires botocore (>=1.29.30,<1.30.0).
Thus, boto3 (>=1.26.30,<2.0.0) is incompatible with aiobotocore (>=0.10.2).
And because dask-cloudprovider (2022.10.0) depends on aiobotocore (>=0.10.2)
 and no versions of dask-cloudprovider match >2022.10.0,<2023.0.0, boto3 (>=1.26.30,<2.0.0) is incompatible with dask-cloudprovider (>=2022.10.0,<2023.0.0).
So, because foo depends on both dask-cloudprovider (^2022.10.0) and boto3 (^1.26.30), version solving failed.

This seems to have dragged for years already. Is there any roadmap for an async SDK? Would be nice to know more.

[tim-finnigan]

Hi @ianliu thanks for reaching out. I don't think this could be addressed until the next major version of boto3 but there is a tracking issue here in botocore: boto/botocore#458. I plan to bring this up for discussion with the team soon so that we can update that issue and provide more information.

[tim-finnigan]

I just followed up here on that issue: boto/botocore#458 (comment). This is my response after discussing with the team:

Hi all, thanks for your patience. I brought up this up for discussion with the team and the consensus was that async support won't be considered until the next major version. Implementing this would require an entire rewrite of botocore, and that effort is currently being allocated to creating a longer term async solution for botocore users.