Rebuild in CircleCI for publication

.circleci/config.yml

@@ -117,7 +117,19 @@ jobs:
           command: if ! .circleci/has-functional-changes.sh ; then circleci step halt ; fi
 
       - run:
-          name: Upload a Python package to Pypi
+          name: Install Twine
+          command: |
+            source /tmp/venv/openfisca_core/bin/activate
+            pip install --upgrade twine
+
+      - run:
+          name: Build openfisca-core
+          command: |
+            source /tmp/venv/openfisca_core/bin/activate
+            python setup.py bdist_wheel
+
+      - run:
+          name: Upload openfisca-core package to PyPi
           command: |
             source /tmp/venv/openfisca_core/bin/activate
             twine upload dist/* --username $PYPI_USERNAME --password $PYPI_PASSWORD

Makefile

@@ -23,6 +23,11 @@ clean: \
 	@$(call doc,$@:)
 	@rm -rf $?
 
+## Compile python files to check for syntax errors.
+check-syntax-errors: .
+	@$(call doc,$@:)
+	@python -m compileall -q $?
+
 ## Run linters to check for syntax and style errors.
 check-style: $(shell git ls-files "*.py")
 	@$(call doc,$@:)