ready for release to pypi

.github/workflows/main.yml

@@ -4,13 +4,15 @@ name: CI
 # events but only for the master branch
 on:
   push:
-    branches: [ master ]
+    branches: [master]
   pull_request:
-    branches: [ master ]
+    branches: [master]
+  release:
+    types: [published]
 
 # A workflow run is made up of one or more jobs that can run sequentially or in parallel
 jobs:
-  Check_Python_pkg:
+  Python_pkg:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout this Repo
@@ -23,14 +25,27 @@ jobs:
 
       - name: Install Dependencies
         run: |
+          python -m pip install --upgrade pip
           pip install -r requirements.txt
           pip install pylint
 
       - name: Check formatting
         run: pylint rmskin_builder.py
 
+      - name: Prepare for pypi
+        if: github.event_name == 'release'
+        run: pip install setuptools wheel twine
+
+      - name: Build and publish
+        if: github.event_name == 'release'
+        env:
+          TWINE_USERNAME: __token__
+          TWINE_PASSWORD: ${{ secrets.pypi_token }}
+        run: |
+          python setup.py sdist
+          twine upload dist/*
+
   Build:
-    # needs: Check_Python_pkg
     runs-on: ubuntu-latest
     steps:
       - name: Checkout this Repo