Consider removing the importlib-metadata version 1.x restriction.

[leandrodamascena]

Hello everyone! I'm currently integrating Datadog as an external provider for observability in Powertools for AWS Lambda (Python) - aws-powertools/powertools-lambda-python#2194. However, I've encountered issues adding datadog-lambda as a dependency because it's locked to importlib-metadata ^1.x, causing some of our other dependencies to fail.

Expected Behavior

Being able to add datadog-lambda as an external dependency and not have dependency resolution issues.

Actual Behavior

Cannot add because datadog-lambda lock importlib-metadata in ^1.x.

Steps to Reproduce the Problem

1. Clone https://github.com/aws-powertools/powertools-lambda-python
2. Type poetry add datadog_lambda

Possible Solution

I was looking at the code and it looks like it's not a problem to remove the lock for ^1.x and add any importlib-metadata version, so poetry/pip can resolve the dependencies. I even cloned this repository, updated the version and the tests are green.

Specifications

• Datadog Lambda Layer version: Doesn't apply
• Python version: 3.7

Stacktrace

❯ poetry add datadog_lambda      
Using version ^4.75.0 for datadog-lambda

Updating dependencies
Resolving dependencies... (0.6s)

    Because no versions of mkdocs match >1.4.2,<1.4.3 || >1.4.3
 and mkdocs (1.4.2) depends on importlib-metadata (>=4.3), mkdocs (>=1.4.2,<1.4.3 || >1.4.3) requires importlib-metadata (>=4.3).
    And because mkdocs (1.4.3) depends on importlib-metadata (>=4.3), mkdocs (>=1.4.2) requires importlib-metadata (>=4.3).
    Because no versions of datadog-lambda match >4.75.0,<5.0.0
 and datadog-lambda (4.75.0) depends on importlib_metadata (>=1.0,<2.0), datadog-lambda (>=4.75.0,<5.0.0) requires importlib_metadata (>=1.0,<2.0).
(1) Thus, datadog-lambda (>=4.75.0,<5.0.0) is incompatible with mkdocs (>=1.4.2).

    Because no versions of mkdocs-material match >9.1.19,<9.2.0b0 || >9.2.0b0,<9.2.0b1 || >9.2.0b1,<10.0.0
 and mkdocs-material (9.2.0b0) depends on mkdocs (>=1.4.2), mkdocs-material (>9.1.19,<9.2.0b1 || >9.2.0b1,<10.0.0) requires mkdocs (>=1.4.2).
    And because mkdocs-material (9.2.0b1) depends on mkdocs (>=1.4.2)
 and mkdocs-material (9.1.19) depends on mkdocs (>=1.4.2), mkdocs-material (>=9.1.19,<10.0.0) requires mkdocs (>=1.4.2).
    And because datadog-lambda (>=4.75.0,<5.0.0) is incompatible with mkdocs (>=1.4.2) (1), datadog-lambda (>=4.75.0,<5.0.0) is incompatible with mkdocs-material (>=9.1.19,<10.0.0)
    So, because aws-lambda-powertools depends on both datadog-lambda (^4.75.0) and mkdocs-material (^9.1.19), version solving failed.

[leandrodamascena]

I think you can close this issue since PR #351 was merged.

Thank you