Renew python codegeneration real test

.github/workflows/release-pypi.yaml

@@ -29,8 +29,8 @@ jobs:
       - name: Generate code
         working-directory: ./python
         run: |
-          make clean-real
-          make generate-real
+          make clean
+          make generate
 
       - uses: cucumber/action-publish-pypi@v3.0.0
         with:

.github/workflows/test-codegen.yml

@@ -31,6 +31,11 @@ jobs:
         with:
           ruby-version: '3.1'
 
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.13"
+
       - name: generate code for all languages
         run: |
           make clean-all

.github/workflows/test-python.yml

@@ -45,8 +45,8 @@ jobs:
       - name: Generate code
         working-directory: ./python
         run: |
-          make clean-real
-          make generate-real
+          make clean
+          make generate
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip

python/Makefile

@@ -8,15 +8,12 @@ HERE := $(dir $(MKFILE_PATH))
 help: ## Show this help
 	@awk 'BEGIN {FS = ":.*##"; printf "\nUsage:\n  make <target>\n\nWhere <target> is one of:\n"} /^[$$()% a-zA-Z_-]+:.*?##/ { printf "  \033[36m%-15s\033[0m %s\n", $$1, $$2 } /^##@/ { printf "\n\033[1m%s\033[0m\n", substr($$0, 5) } ' $(MAKEFILE_LIST)
 
-generate: ## Stub for the ancestor Makefile
-	echo "Skipping code generation - code is generated by Python"
-
-generate-real: require install-deps
+generate: require install-deps
 	datamodel-codegen \
 		--output-model-type "dataclasses.dataclass" \
 		--base-class ".json_converter.JSONDataclassMixin" \
 		--input $(HERE)../jsonschema/Envelope.json \
-		--output $(HERE)src/cucumber_messages/messages.py \
+		--output $(HERE)src/cucumber_messages/_messages.py \
 		--input-file-type=jsonschema \
 		--class-name Envelope  \
 		--target-python-version=3.9 \
@@ -34,10 +31,7 @@ require: ## Check requirements for the code generation (python is required)
 	@python --version >/dev/null 2>&1 || (echo "ERROR: python is required."; exit 1)
 
 clean: ## Stub for the ancestor Makefile
-	echo "Skipping code cleanup - code cleanup is done by Python"
-
-clean-real: ## Remove automatically generated files and related artifacts
-	rm -rf $(HERE)src/_messages.py
+	rm -rf $(HERE)src/cucumber_messages/_messages.py.
 
 install-deps: ## Install generation dependencies
 	python -m ensurepip --upgrade

python/src/cucumber_messages/__init__.py

@@ -1,5 +1,5 @@
 from . import json_converter
-from .messages import *
+from ._messages import *
 
 # Renaming types because of confusing collision naming
 HookType = Type