text: #!/usr/bin/env python
  import glob
  import os
  from functools import partial
  from importlib.util import module_from_spec, spec_from_file_location
  from typing import Tuple
  
  from setuptools import find_packages, setup
  
  _PATH_ROOT = os.path.realpath(os.path.dirname(__file__))
  _PATH_REQUIRE = os.path.join(_PATH_ROOT, "requirements")
  
  
  def _load_py_module(fname, pkg="torchmetrics"):
      spec = spec_from_file_location(os.path.join(pkg, fname), os.path.join(_PATH_ROOT, pkg, fname))
      py = module_from_spec(spec)
      spec.loader.exec_module(py)
      return py
  
  
  about = _load_py_module("__about__.py")
  setup_tools = _load_py_module("setup_tools.py")
  long_description = setup_tools._load_readme_description(
      _PATH_ROOT,
      homepage=about.__homepage__,
      version=f"v{about.__version__}",
  )
  
  
  BASE_REQUIREMENTS = setup_tools._load_requirements(path_dir=_PATH_ROOT, file_name="requirements.txt")
  
  
  def _prepare_extras(skip_files: Tuple[str] = ("devel.txt")):
      # find all extra requirements
      _load_req = partial(setup_tools._load_requirements, path_dir=_PATH_REQUIRE)
      found_req_files = sorted(os.path.basename(p) for p in glob.glob(os.path.join(_PATH_REQUIRE, "*.txt")))
      # filter unwanted files
      found_req_files = [n for n in found_req_files if n not in skip_files]
      found_req_names = [os.path.splitext(req)[0].replace("datatype_", "") for req in found_req_files]
      # define basic and extra extras
      extras_req = {name: _load_req(file_name=fname) for name, fname in zip(found_req_names, found_req_files)}
      # filter the uniques
      extras_req = {n: list(set(req)) for n, req in extras_req.items()}
      # create an 'all' keyword that install all possible denpendencies
      extras_req["all"] = [pkg for reqs in extras_req.values() for pkg in reqs]
      return extras_req
  
  
  # https://packaging.python.org/discussions/install-requires-vs-requirements /
  # keep the meta-data here for simplicity in reading this file... it's not obvious
  # what happens and to non-engineers they won't know to look in init ...
  # the goal of the project is simplicity for researchers, don't want to add too much
  # engineer specific practices
  setup(
      name="torchmetrics",
      version=about.__version__,
      description=about.__docs__,
      author=about.__author__,
      author_email=about.__author_email__,
      url=about.__homepage__,
      download_url=os.path.join(about.__homepage__, "archive", "master.zip"),
      license=about.__license__,
      packages=find_packages(exclude=["tests", "tests.*", "docs"]),
      long_description=long_description,
      long_description_content_type="text/markdown",
      include_package_data=True,
      zip_safe=False,
      keywords=["deep learning", "machine learning", "pytorch", "metrics", "AI"],
      python_requires=">=3.6",
      setup_requires=[],
      install_requires=BASE_REQUIREMENTS,
      extras_require=_prepare_extras(),
      project_urls={
          "Bug Tracker": os.path.join(about.__homepage__, "issues"),
          "Documentation": "https://torchmetrics.rtfd.io/en/latest/",
          "Source Code": about.__homepage__,
      },
      classifiers=[
          "Environment :: Console",
          "Natural Language :: English",
          # How mature is this project? Common values are
          #   3 - Alpha, 4 - Beta, 5 - Production/Stable
          "Development Status :: 5 - Production/Stable",
          # Indicate who your project is intended for
          "Intended Audience :: Developers",
          "Topic :: Scientific/Engineering :: Artificial Intelligence",
          "Topic :: Scientific/Engineering :: Image Recognition",
          "Topic :: Scientific/Engineering :: Information Analysis",
          # Pick your license as you wish
          # 'License :: OSI Approved :: BSD License',
          "Operating System :: OS Independent",
          # Specify the Python versions you support here. In particular, ensure
          # that you indicate whether you support Python 2, Python 3 or both.
          "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",
      ],
  )
  