text: import os
  import sys
  import platform
  import subprocess
  import re
  import setuptools
  
  from setuptools import setup, Extension
  from setuptools.command.build_ext import build_ext
  from distutils.version import LooseVersion
  
  
  def read(fname):
      return open(os.path.join(os.path.dirname(__file__), fname)).read()
  
  
  def find_version():
      version_file = read("tenseal/version.py")
      version_re = r"__version__ = \"(?P<version>.+)\""
      version = re.match(version_re, version_file).group("version")
      return version
  
  
  class CMakeExtension(Extension):
      def __init__(self, name, sourcedir=""):
          Extension.__init__(self, name, sources=[])
          self.sourcedir = os.path.abspath(sourcedir)
  
  
  class CMakeBuild(build_ext):
      def run(self):
          try:
              out = subprocess.check_output(["cmake", "--version"])
          except OSError:
              raise RuntimeError(
                  "CMake must be installed to build the following extensions: "
                  + ", ".join(e.name for e in self.extensions)
              )
  
          if platform.system() == "Windows":
              cmake_version = LooseVersion(re.search(r"version\s*([\d.]+)", out.decode()).group(1))
              if cmake_version < "3.1.0":
                  raise RuntimeError("CMake >= 3.1.0 is required on Windows")
  
          for ext in self.extensions:
              self.build_extension(ext)
  
      def build_extension(self, ext):
          extdir = os.path.abspath(os.path.dirname(self.get_ext_fullpath(ext.name)))
          cmake_args = [
              "-DCMAKE_LIBRARY_OUTPUT_DIRECTORY=" + extdir,
              "-DPYTHON_EXECUTABLE=" + sys.executable,
          ]
  
          cfg = "Debug" if self.debug else "Release"
          build_args = ["--config", cfg]
  
          if platform.system() == "Windows":
              cmake_args += [f"-DCMAKE_LIBRARY_OUTPUT_DIRECTORY_{cfg.upper()}={extdir}"]
              if sys.maxsize > 2 ** 32:
                  cmake_args += ["-A", "x64"]
              build_args += ["--", "/m"]
          else:
              cmake_args += ["-DCMAKE_BUILD_TYPE=" + cfg]
              build_args += ["--", "-j2"]
  
          env = os.environ.copy()
          env["CXXFLAGS"] = '{} -DVERSION_INFO=\\"{}\\"'.format(
              env.get("CXXFLAGS", ""), self.distribution.get_version()
          )
          if not os.path.exists(self.build_temp):
              os.makedirs(self.build_temp)
          subprocess.check_call(["cmake", ext.sourcedir] + cmake_args, cwd=self.build_temp, env=env)
          subprocess.check_call(["cmake", "--build", "."] + build_args, cwd=self.build_temp)
  
  
  setuptools.setup(
      name="tenseal",
      version=find_version(),
      author="Ayoub Benaissa",
      author_email="ayouben9@gmail.com",
      description="A Library for Homomorphic Encryption Operations on Tensors",
      license="Apache-2.0",
      keywords="homomorphic encryption tensor deep learning privacy secure",
      long_description=read("README.md"),
      long_description_content_type="text/markdown",
      url="https://github.com/OpenMined/TenSEAL",
      packages=setuptools.find_packages(include=["tenseal", "tenseal.*"]),
      classifiers=[
          "Programming Language :: C++",
          "Programming Language :: Python :: 3",
          "Operating System :: OS Independent",
          "Topic :: Security :: Cryptography",
      ],
      ext_modules=[CMakeExtension("_tenseal_cpp")],
      cmdclass=dict(build_ext=CMakeBuild),
      zip_safe=False,
  )
  