new github actions attempt

.github/workflows/buildmac.yml

-name: Build Windows
+name: Build Mac
 
 on: [push]
 
     runs-on: macos-latest
     steps:
     - uses: actions/checkout@v2
-    - name: Set up Python 3.9
-      uses: actions/setup-python@v2
+    - uses: actions/setup-python@v2
       with:
         python-version: 3.9
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install pylint
+        pip install PyQt5
         pip install py2exe
     - name: Run Mac build
       run: |
+        cd ${{ github.workspace }}
         ./build_mac.sh
+    - name: Show build results
+      run: |
+        ls ${{ github.workspace }}/build/mac
+        ls ${{ github.workspace }}/build/dist

.github/workflows/buildwindows.yml

     runs-on: windows-latest
     steps:
     - uses: actions/checkout@v2
-    - name: Set up Python 3.9
-      uses: actions/setup-python@v2
+    - uses: actions/setup-python@v2
       with:
-        python-version: 3.9
+        python-version: 3.7
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install pylint
+        pip install PyQt5
         pip install py2exe
     - name: Run Windows build
       run: |
-        build_win.bat
+        cd ${{ github.workspace }}
+        ./build_win.sh
+    - name: Show build results
+      run: |
+        ls ${{ github.workspace }}/build/win
+        ls ${{ github.workspace }}/build/dist

build_win.bat → build_win.sh

 #!/bin/sh
 
-del build/win
-mkdir build/win
+rm -rf build/win
+mkdir -p build/win
 
 cp src/* build/win/
 cp data/* build/win/