PyPI whl build and upload to PyPI test server nightly job

.github/workflows/pypi_build.yml

@@ -0,0 +1,50 @@
+# YAML schema for GitHub Actions:
+# https://help.github.com/en/actions/automating-your-workflow-with-github-actions/workflow-syntax-for-github-actions
+#
+# Helpful YAML parser to clarify YAML syntax:
+# https://yaml-online-parser.appspot.com/
+#
+
+name: PyPI Build
+
+on:
+  schedule:
+    # 1pm UTC is 6am or 7am PT depending on daylight savings.
+    - cron: '0 13 * * *'
+
+  workflow_dispatch:
+    inputs:
+      upload-type:
+        description: 'Upload type'
+        required: true
+        default: 'pypi'
+        type: choice
+        options:
+          - 'pypi'
+          - 'no upload'
+env:
+  TWINE_PASSWORD: ${{ secrets.PYPI_API_KEY }}
+
+jobs:
+  pypi-build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          token: ${{ secrets.TFLM_BOT_REPO_TOKEN }}
+      - name: Build Wheel 3.10
+        run: |
+          python/tflite_micro/pypi_build.sh cp310
+      - name: Build Wheel 3.11
+        run: |
+          python/tflite_micro/pypi_build.sh cp311
+      - name: Check Directory Output
+        run: |
+          ls -l bazel-pypi-out
+      - name: upload to pypi
+        if: |
+          github.event.inputs.upload-type == 'pypi' ||
+          github.event_name == 'schedule'
+        run: |
+          python/tflite_micro/pypi_upload.sh \
+          bazel-pypi-out/tflite_micro-*.whl