add to verification script

dev/release/verify-release-candidate.sh

@@ -297,6 +297,57 @@ test_r() {
   popd
 }
 
+activate_or_create_venv() {
+  if [ ! -z "${NANOARROW_PYTHON_VENV}" ]; then
+    show_info "Activating virtual environment at ${NANOARROW_PYTHON_VENV}"
+    # TODO: Move to dockerfiles
+    apt-get install -y python3-dev
+    source "${NANOARROW_PYTHON_VENV}/bin/activate"
+  else
+    # Try python3 first, then try regular python (e.g., Windows)
+    if [ -z "${PYTHON_BIN}" ] && python3 --version >/dev/null; then
+      PYTHON_BIN=python3
+    elif [ -z "${PYTHON_BIN}" ]; then
+      PYTHON_BIN=python
+    fi
+
+    show_info "Creating temporary virtual environment using ${PYTHON_BIN}..."
+    "${PYTHON_BIN}" -m venv "${NANOARROW_TMPDIR}/venv"
+    source "${NANOARROW_TMPDIR}/venv/bin/activate"
+    pip install --upgrade pip
+  fi
+}
+
+test_python() {
+  show_header "Build and test Python package"
+  activate_or_create_venv
+
+  show_info "Installing build utilities"
+  pip install --upgrade build
+
+  pushd "${NANOARROW_SOURCE_DIR}/python"
+
+  show_info "Building sdist and wheel"
+  rm -rf "${NANOARROW_TMPDIR}/python"
+  python -m build --sdist --wheel --outdir "${NANOARROW_TMPDIR}/python"
+  PYTHON_SDIST_NAME=$(ls "${NANOARROW_TMPDIR}/python" | grep -e ".tar.gz")
+  PYTHON_WHEEL_NAME=$(ls "${NANOARROW_TMPDIR}/python" | grep -e ".whl")
+
+  show_info "Installing from sdist"
+  pip install "${NANOARROW_TMPDIR}/python/${PYTHON_SDIST_NAME}[test]"
+
+  show_info "Testing source distribution"
+  python -m pytest -vv
+
+  show_info "Installing from wheel"
+  pip install --force-reinstall "${NANOARROW_TMPDIR}/python/${PYTHON_WHEEL_NAME}"
+
+  show_info "Testing wheel"
+  python -m pytest -vv
+
+  popd
+}
+
 ensure_source_directory() {
   show_header "Ensuring source directory"
 
@@ -346,6 +397,10 @@ test_source_distribution() {
     test_r
   fi
 
+  if [ ${TEST_PYTHON} -gt 0 ]; then
+    test_python
+  fi
+
   popd
 }
 
@@ -359,6 +414,7 @@ test_source_distribution() {
 : ${TEST_C:=${TEST_SOURCE}}
 : ${TEST_C_BUNDLED:=${TEST_C}}
 : ${TEST_R:=${TEST_SOURCE}}
+: ${TEST_PYTHON:=${TEST_SOURCE}}
 
 TEST_SUCCESS=no