Cannot use ddtrace 4.X.X with datadog-lambda 8.121.0

[uittorio]

Expected Behavior

When installing requirements.txt with datadog-lambda 8.121.0 ddtrace it should allow to install ddtrace 4.3.0

Actual Behavior

It gives an error
ERROR: Cannot install -r requirements.txt (line 1) and ddtrace>=4.3.0 because these package versions have conflicting dependencies.

Steps to Reproduce the Problem

1. create a file called requirements.txt with the following content

datadog-lambda>=8.121.0
ddtrace>=4.3.0

2. create venv

python3 -m venv .venv
source .venv/bin/activate

3. install requirements

pip install -r requirements.txt

4. See results

Collecting datadog-lambda>=8.121.0 (from -r requirements.txt (line 1))
  Downloading datadog_lambda-8.121.0-py3-none-any.whl.metadata (994 bytes)
Collecting ddtrace>=4.3.0 (from -r requirements.txt (line 2))
  Downloading ddtrace-4.3.0-cp312-cp312-manylinux2014_x86_64.manylinux_2_17_x86_64.whl.metadata (3.6 kB)
Collecting datadog<1.0.0,>=0.51.0 (from datadog-lambda>=8.121.0->-r requirements.txt (line 1))
  Using cached datadog-0.52.1-py2.py3-none-any.whl.metadata (10 kB)
INFO: pip is looking at multiple versions of datadog-lambda to determine which version is compatible with other requirements. This could take a while.
ERROR: Cannot install -r requirements.txt (line 1) and ddtrace>=4.3.0 because these package versions have conflicting dependencies.

Specifications

• Datadog Lambda Layer version: N/A
• Python version: 3.12.3

Is there a better way to install dependencies to make it working without forcing an install? I've noticed that the project.toml in datadog-lambda should support both version depending on the python version.

[rithikanarayan]

Hello @uittorio, thanks for reporting this issue! We apologize; we have confirmed this behavior and are investigating right now. We expect to have a fix in an upcoming release in the next few weeks.

In the meantime, to be able to run your Lambda, we suggest pinning ddtrace to a version <4 or using the lambda layer if possible. Feel free to reach out with any additional questions/issues; we hope to have an update for you shortly!