Hi @kumarsuraj9798,
Welcome to the Exercism fourms! Thank you for submitting a PR to improve the Twelve Days exercise on the Python track.
One of the reasons that we ask that PRs be discussed in advance of the work is that there are often things that contributors are unaware of or confused by within the Exercism “ecosystem”.
One of those is the difference between practice exercises and concept exercises.
Tweleve Days is a practice exercise. Practice exercises are commonly cross-language-track exercises that are pulled from a central problem-specifications repo, and have a common set of instructions and test data.
To make changes to those descriptions or tests requires discussion and sign-off from multiple track maintainers because any change would impact all language tracks that use the exercise. Hence Isaacs question about why you want to make the changes
What you see on the Python track is an implementation of the problem-specifications exercise, with tests that have been selected via the .meta/tests.toml file and a Python test file that is auto-generated using a track script (not configlet) via the .meta/template.j2.
The example.py file is there to “prove” there is a solution for the exercise that satisfies the tests as generated - it is not an ideal solution, nor is is expected to even be an idiomatic solution — and it should in no way be copied by students.
We don’t use exemplar files for practice exercises because there is no “one right way” or “ideal” for how to solve them. They are intended to be open-ended, and many of them are designed to provoke discussion with a mentor.
From looking at your PR, it appears what you’d like to do is change the example.py file to use tuples in more places. But again - that file is there to prove the tests are passible and not to point students in a solution direction. You have also put a solution into the stub file (twelve_days.py) that is shown to students, which would give them the answer before they start coding.
Per above, practice exercises don’t use exemplar.py files. They also don’t use README.md files because the content in the repo is not “public facing”. It is intended to be consumed by the website and formatted for public use there.
If what you wish to show is how students could better use tuples in their solutions, you could write one or more approaches for the exercise. Here is a repo example from the Acronym exercise that shows multiple approaches as well as an introduction document outlining them.
But as it stands right now (as much as we appreciate the effort), your PR is not something we want on the Python track.