test: verify python package distribution build when running make test (#65)

* test: python package distribution build when running make test
Pushing to pypi would occasionally fail because of breaking distribution build.
We verify the build in the github CI now so that we can mitigate those errors later on.

Makefile

@@ -4,7 +4,7 @@ SRC_DIRS = ./tutorcairn
 BLACK_OPTS = --exclude templates ${SRC_DIRS}
 
 # Warning: These checks are not necessarily run on every PR.
-test: test-lint test-types test-format  # Run some static checks.
+test: test-lint test-types test-format test-pythonpackage  # Run some static checks.
 
 test-format: ## Run code formatting tests
 	black --check --diff $(BLACK_OPTS)
@@ -15,6 +15,12 @@ test-lint: ## Run code linting tests
 test-types: ## Run type checks.
 	mypy --exclude=templates --ignore-missing-imports --implicit-reexport --strict ${SRC_DIRS}
 
+build-pythonpackage: ## Build the "tutor-cairn" python package for upload to pypi
+	python -m build --sdist
+
+test-pythonpackage: build-pythonpackage ## Test that package can be uploaded to pypi
+	twine check dist/tutor_cairn-$(shell make version).tar.gz
+
 format: ## Format code automatically
 	black $(BLACK_OPTS)
 
@@ -27,6 +33,9 @@ changelog-entry: ## Create a new changelog entry.
 changelog: ## Collect changelog entries in the CHANGELOG.md file.
 	scriv collect
 
+version: ## Print the current tutor-cairn version
+	@python -c 'import io, os; about = {}; exec(io.open(os.path.join("tutorcairn", "__about__.py"), "rt", encoding="utf-8").read(), about); print(about["__version__"])'
+
 ESCAPE = 
 help: ## Print this help
 	@grep -E '^([a-zA-Z_-]+:.*?## .*|######* .+)$$' Makefile \

changelog.d/20250408_141332_danyal.faheem_twine_build_ci.md

@@ -0,0 +1 @@
+- [Improvement] Test python package distribution build when running make test. (by @Danyal-Faheem)