Add Python API (#31)

setup.py

@@ -0,0 +1,75 @@
+#!/usr/bin/env python3
+
+import os
+import re
+import sys
+from pathlib import Path
+
+import setuptools
+
+from cmake.cmake_extension import (
+    BuildExtension,
+    bdist_wheel,
+    cmake_extension,
+    is_windows,
+)
+
+
+def read_long_description():
+    with open("README.md", encoding="utf8") as f:
+        readme = f.read()
+    return readme
+
+
+def get_package_version():
+    with open("CMakeLists.txt") as f:
+        content = f.read()
+
+    match = re.search(r"set\(SHERPA_ONNX_VERSION (.*)\)", content)
+    latest_version = match.group(1).strip('"')
+    return latest_version
+
+
+package_name = "sherpa-onnx"
+
+with open("sherpa-onnx/python/sherpa_onnx/__init__.py", "a") as f:
+    f.write(f"__version__ = '{get_package_version()}'\n")
+
+install_requires = [
+    "numpy",
+]
+
+setuptools.setup(
+    name=package_name,
+    python_requires=">=3.6",
+    install_requires=install_requires,
+    version=get_package_version(),
+    author="The sherpa-onnx development team",
+    author_email="dpovey@gmail.com",
+    package_dir={
+        "sherpa_onnx": "sherpa-onnx/python/sherpa_onnx",
+    },
+    packages=["sherpa_onnx"],
+    url="https://github.com/k2-fsa/sherpa-onnx",
+    long_description=read_long_description(),
+    long_description_content_type="text/markdown",
+    ext_modules=[cmake_extension("_sherpa_onnx")],
+    cmdclass={"build_ext": BuildExtension, "bdist_wheel": bdist_wheel},
+    zip_safe=False,
+    classifiers=[
+        "Programming Language :: C++",
+        "Programming Language :: Python",
+        "Topic :: Scientific/Engineering :: Artificial Intelligence",
+    ],
+    license="Apache licensed, as found in the LICENSE file",
+)
+
+with open("sherpa-onnx/python/sherpa_onnx/__init__.py", "r") as f:
+    lines = f.readlines()
+
+with open("sherpa-onnx/python/sherpa_onnx/__init__.py", "w") as f:
+    for line in lines:
+        if "__version__" in line:
+            # skip __version__ = "x.x.x"
+            continue
+        f.write(line)