Update .gitlab-ci.yml

.gitlab-ci.yml

@@ -1,7 +1,6 @@
 stages:
   - test
-  #- build
+  - pypi-twine
-  #- deploy
 
 test:
   stage: test
@@ -12,3 +11,14 @@ test:
       - env.vanilla
     expire_in: 1 hour
 
+pypi-twine:
+  stage: pypi-twine
+  tags:
+    - build
+  only:
+    - tags
+  script:
+    - pip install --upgrade pip
+    - pip install twine
+    - python3 setup.py sdist bdist_wheel
+    - twine upload dist/*