Add pip to dev requirements

[david-stanley-94]

Description

• pip is missing from dev requirements, causing dev make commands to fail when using e.g. uv approach to venv
• Happens e.g. when calling make install-test-requirements, following Guidelines for contributing developers (https://github.com/kedro-org/kedro/wiki/Guidelines-for-contributing-developers/)

Context

• Prevents dev requirements from being installed (though could bypass by calling uv add --dev pip)

Steps to Reproduce

1. Clone repo
2. Call uv sync in root to create venv
3. Call uv run make install-test-requirements to run the make command within the venv

Expected Result

• The test requirements should install

Actual Result

• The python -m pip install "uv==0.4.29" command breaks:

(base) David_Stanley@M-L63HJK2K09 kedro % uv run make install-test-requirements
python -m pip install "uv==0.4.29"
/Users/David_Stanley/Temp/kedro/.venv/bin/python: No module named pip
make: *** [install-test-requirements] Error 1

Your Environment

• Kedro version used (pip show kedro or kedro -V):
• Python version used (python -V):
• Operating system and version: macOS, 15.4.1 (24E263)

[SajidAlamQB]

Hi @david-stanley-94,

Thanks a lot for opening this issue and providing such clear steps to reproduce it! This is very helpful.

Your proposed solution to add pip to the development requirements seems like a very reasonable and direct way to fix this.

Would you be open to create a PR for this change?

[david-stanley-94]

Sure thing @SajidAlamQB . Looking at the current pyproject.toml, I am unsure how to proceed though.

This is a dev dependency, so per current python packaging guidelines (https://packaging.python.org/en/latest/specifications/dependency-groups/), it should be added as a dev dependency under dependency-groups. However, I can see that the test dependencies are currently under optional-dependencies that are therefore packaged on e.g. pypi, and installable by ordinary users (if they call e.g. pip install kedro[test]). Is this intentional and do we also want dev dependencies to be installable by ordinary users, do you know?

[david-stanley-94]

I realise how silly this all sounds for the thing in question being pip mind 🙈😅

[david-stanley-94]

A reasonable response I think is also for us to say "people can see the error message and install pip if they're lacking it, given this is only going to effect prospective developers who will either know what they're doing there or will want to learn", I guess 😛

[SajidAlamQB]

Hi @david-stanley-94,

Thanks, that makes sense and actually there is a relevant ongoing discussion about this, #4648. So maybe we can add pip as a dev dependency, you could potentially do it using the more modern "dependency group" approach.