text: import os
  import io
  import re
  import sys
  import platform
  import subprocess
  import find_version
  import multiprocessing
  
  from setuptools import setup, Extension
  from setuptools.command.build_ext import build_ext
  from distutils.version import LooseVersion
  
  
  ### VERSION
  here = os.path.abspath(os.path.dirname(__file__))
  version_file = os.path.join(here, "generated", "version.py")
  os.makedirs(os.path.join(here, "generated"), exist_ok=True)
  if os.environ.get('CI') != None :
      ### If CI build, respect 'BUILD_COMMIT_HASH' to determine final version if set
      final_version = find_version.get_package_version()
      if os.environ.get('BUILD_COMMIT_HASH') != None:
          final_version = find_version.get_package_dev_version(os.environ['BUILD_COMMIT_HASH'])
      with open(version_file, 'w') as vf :
          vf.write("__version__ = '" + final_version + "'")
  elif os.path.exists(".git"):
      ### else if .git folder exists, create depthai with commit hash retrieved from git rev-parse HEAD
      commit_hash = 'dev'
      try:
          commit_hash = (
              subprocess.check_output(
                  ["git", "rev-parse", "HEAD"], stderr=subprocess.STDOUT
              )
              .splitlines()[0]
              .decode()
          )
      except subprocess.CalledProcessError as e:
          # cannot get commit hash, leave empty
          commit_hash = 'dev'
      final_version = find_version.get_package_dev_version(commit_hash)
  
      with open(version_file, 'w') as vf :
          vf.write("__version__ = '" + final_version + "'")
  
  
  # If not generated, generate from find_version
  if os.path.isfile(version_file) == False :
      # generate from find_version
      final_version = find_version.get_package_dev_version('dev')
      with open(version_file, 'w') as vf :
          vf.write("__version__ = '" + final_version + "'")
  
  ### Get version from version.py (sdist will have this pregenerated)
  exec(open(version_file).read())
  buildCommitHash = None
  if len(__version__.split("+")) > 1 :
      buildCommitHash = __version__.split("+")[1]
  
  
  ## Read description (README.md)
  long_description = io.open("README.md", encoding="utf-8").read()
  
  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 < '3.2.0':
                  raise RuntimeError("CMake >= 3.2.0 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)))
          # required for auto-detection of auxiliary "native" libs
          if not extdir.endswith(os.path.sep):
              extdir += os.path.sep
  
          # initialize cmake_args and build_args
          cmake_args = []
          build_args = []
  
          # Specify output directory and python executable
          cmake_args += ['-DCMAKE_LIBRARY_OUTPUT_DIRECTORY=' + extdir, '-DPYTHON_EXECUTABLE=' + sys.executable]
  
          # Pass a commit hash
          if buildCommitHash != None :
              cmake_args += ['-DDEPTHAI_PYTHON_COMMIT_HASH=' + buildCommitHash]
  
          # Pass a docstring option
          if 'DEPTHAI_PYTHON_DOCSTRINGS_INPUT' in os.environ:
              cmake_args += ['-DDEPTHAI_PYTHON_DOCSTRINGS_INPUT='+os.environ['DEPTHAI_PYTHON_DOCSTRINGS_INPUT']]
  
          # Pass installation directory
          if 'DEPTHAI_INSTALLATION_DIR' in os.environ:
              cmake_args += ['-DDEPTHAI_PYTHON_USE_FIND_PACKAGE=ON']
              cmake_args += ['-DCMAKE_PREFIX_PATH='+os.environ['DEPTHAI_INSTALLATION_DIR']]
  
          # Set build type (debug vs release for library as well as dependencies)
          cfg = 'Debug' if self.debug else 'Release'
          cmake_args += ['-DCMAKE_BUILD_TYPE=' + cfg]
          cmake_args += ['-DHUNTER_CONFIGURATION_TYPES=' + cfg]
          build_args += ['--config', cfg]
  
          # Memcheck (guard if it fails)
          freeMemory = 4000
          if platform.system() == "Linux":
              try:
                  freeMemory = int(os.popen("free -m").readlines()[1].split()[6])
              except (KeyboardInterrupt, SystemExit):
                  raise
              except:
                  freeMemory = 4000
          # Memcheck (guard if it fails)
  
  
          # Configure and build
          # Windows
          if platform.system() == "Windows":
              cmake_args += ['-DCMAKE_LIBRARY_OUTPUT_DIRECTORY_{}={}'.format(cfg.upper(), extdir)]
              cmake_args += ['-DCMAKE_TOOLCHAIN_FILE={}'.format(os.path.dirname(os.path.abspath(__file__)) + '/cmake/toolchain/msvc.cmake')]
  
              # Detect whether 32 / 64 bit Python is used and compile accordingly
              if sys.maxsize > 2**32:
                  cmake_args += ['-A', 'x64']
              else:
                  cmake_args += ['-A', 'Win32']
  
              # Add flag to build with maximum available threads
              build_args += ['--', '/m']
          # Unix
          else:
              # if macos add some additional env vars
              if sys.platform == 'darwin':
                  from distutils import util
                  os.environ['MACOSX_DEPLOYMENT_TARGET'] = '10.9'
                  os.environ['_PYTHON_HOST_PLATFORM'] = re.sub(r'macosx-[0-9]+\.[0-9]+-(.+)', r'macosx-10.9-\1', util.get_platform())
  
              # Specify how many threads to use when building, depending on available memory
              max_threads = multiprocessing.cpu_count()
              num_threads = (freeMemory // 1000)
              num_threads = min(num_threads, max_threads)
              if num_threads <= 0:
                  num_threads = 1
              build_args += ['--', '-j' + str(num_threads)]
              cmake_args += ['-DHUNTER_JOBS_NUMBER=' + str(num_threads)]
  
          env = os.environ.copy()
          env['CXXFLAGS'] = '{} -DVERSION_INFO=\\"{}\\"'.format(env.get('CXXFLAGS', ''), self.distribution.get_version())
  
          # Add additional cmake args from environment
          if 'CMAKE_ARGS' in os.environ:
              cmake_args += [os.environ['CMAKE_ARGS']]
  
          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)
  
  
  
  setup(
      name='depthai',
      version=__version__,
      author='Luxonis',
      author_email='support@luxonis.com',
      description='DepthAI Python Library',
      license="MIT",
      long_description=long_description,
      long_description_content_type="text/markdown",
      url="https://github.com/luxonis/depthai-python",
      ext_modules=[CMakeExtension('depthai')],
      cmdclass={
          'build_ext': CMakeBuild
      },
      zip_safe=False,
      classifiers=[
          "Development Status :: 4 - Beta",
          "Intended Audience :: Developers",
          "Intended Audience :: Education",
          "Intended Audience :: Information Technology",
          "Intended Audience :: Science/Research",
          "License :: OSI Approved :: MIT License",
          "Operating System :: MacOS",
          "Operating System :: Microsoft :: Windows",
          "Operating System :: Unix",
          "Programming Language :: Python",
          "Programming Language :: Python :: 3",
          "Programming Language :: Python :: 3.6",
          "Programming Language :: Python :: 3.7",
          "Programming Language :: Python :: 3.8",
          "Programming Language :: Python :: 3.9",
          "Programming Language :: Python :: 3.10",
          "Programming Language :: C++",
          "Programming Language :: Python :: Implementation :: CPython",
          "Topic :: Scientific/Engineering",
          "Topic :: Software Development",
      ],
      python_requires='>=3.6',
  )
  