Add Python API (#31)

.github/workflows/run-python-test.yaml

@@ -0,0 +1,62 @@
+name: run-python-test
+
+on:
+  push:
+    branches:
+      - master
+    paths:
+      - '.github/workflows/run-python-test.yaml'
+      - '.github/scripts/test-python.sh'
+      - 'CMakeLists.txt'
+      - 'cmake/**'
+      - 'sherpa-onnx/csrc/*'
+  pull_request:
+    branches:
+      - master
+    paths:
+      - '.github/workflows/run-python-test.yaml'
+      - '.github/scripts/test-python.sh'
+      - 'CMakeLists.txt'
+      - 'cmake/**'
+      - 'sherpa-onnx/csrc/*'
+
+concurrency:
+  group: run-python-test-${{ github.ref }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read
+
+jobs:
+  run-python-test:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+        python-version: ["3.7", "3.8", "3.9", "3.10"]
+
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: Setup Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install Python dependencies
+        shell: bash
+        run: |
+          python3 -m pip install --upgrade pip numpy
+
+      - name: Install sherpa-onnx
+        shell: bash
+        run: |
+          python3 setup.py install
+
+      - name: Test sherpa-onnx
+        shell: bash
+        run: |
+          .github/scripts/test-python.sh