old_contents: #!/usr/bin/env python
  """
  adstex: Automated generation of NASA ADS bibtex entries
  from citation keys (identifiers, author+year) in your TeX source files.
  
  Project website: https://github.com/yymao/adstex
  
  The MIT License (MIT)
  Copyright (c) 2015-2019 Yao-Yuan Mao (yymao)
  http://opensource.org/licenses/MIT
  """
  from __future__ import absolute_import
  
  import os
  
  from setuptools import setup
  
  _name = "adstex"
  _version = ""
  with open(os.path.join(os.path.dirname(__file__), "{}.py".format(_name))) as _f:
      for _l in _f:
          if _l.startswith("__version__ = "):
              _version = _l.partition("=")[2].strip().strip("'").strip('"')
              break
  if not _version:
      raise ValueError("__version__ not define!")
  
  setup(
      name=_name,
      version=_version,
      description="Find all citation keys in your LaTeX documents and search NASA ADS to generate corresponding bibtex entries.",
      url="https://github.com/yymao/{}".format(_name),
      download_url="https://github.com/yymao/{}/archive/v{}.tar.gz".format(
          _name, _version
      ),
      author="Yao-Yuan Mao",
      author_email="yymao.astro@gmail.com",
      maintainer="Yao-Yuan Mao",
      maintainer_email="yymao.astro@gmail.com",
      license="MIT",
      classifiers=[
          "Environment :: Console",
          "Intended Audience :: End Users/Desktop",
          "Intended Audience :: Science/Research",
          "License :: OSI Approved :: MIT License",
          "Programming Language :: Python :: 2.7",
          "Programming Language :: Python :: 3.6",
          "Topic :: Scientific/Engineering :: Astronomy",
      ],
      keywords="bibtex ads",
      py_modules=[_name],
      install_requires=[
          "ads>=0.12.3",
          "bibtexparser>=0.6.2",
          "requests>=2.0",
          "future>=0.12.0 ; python_version < '3.0'",
      ],
      entry_points={"console_scripts": ["adstex=adstex:main"]},
  )
  
new_contents: #!/usr/bin/env python
  """
  adstex: Automated generation of NASA ADS bibtex entries
  from citation keys (identifiers, author+year) in your TeX source files.
  
  Project website: https://github.com/yymao/adstex
  
  The MIT License (MIT)
  Copyright (c) 2015-2019 Yao-Yuan Mao (yymao)
  http://opensource.org/licenses/MIT
  """
  from __future__ import absolute_import
  
  import os
  
  from setuptools import setup
  
  _name = "adstex"
  _version = ""
  with open(os.path.join(os.path.dirname(__file__), "{}.py".format(_name))) as _f:
      for _l in _f:
          if _l.startswith("__version__ = "):
              _version = _l.partition("=")[2].strip().strip("'").strip('"')
              break
  if not _version:
      raise ValueError("__version__ not define!")
  
  setup(
      name=_name,
      version=_version,
      description="Find all citation keys in your LaTeX documents and search NASA ADS to generate corresponding bibtex entries.",
      url="https://github.com/yymao/{}".format(_name),
      download_url="https://github.com/yymao/{}/archive/v{}.tar.gz".format(
          _name, _version
      ),
      author="Yao-Yuan Mao",
      author_email="yymao.astro@gmail.com",
      maintainer="Yao-Yuan Mao",
      maintainer_email="yymao.astro@gmail.com",
      license="MIT",
      classifiers=[
          "Environment :: Console",
          "Intended Audience :: End Users/Desktop",
          "Intended Audience :: Science/Research",
          "License :: OSI Approved :: MIT License",
          "Programming Language :: Python :: 2.7",
          "Programming Language :: Python :: 3.7",
          "Programming Language :: Python :: 3.8",
          "Programming Language :: Python :: 3.9",
          "Programming Language :: Python :: 3.10",
          "Topic :: Scientific/Engineering :: Astronomy",
      ],
      keywords="bibtex ads",
      py_modules=[_name],
      install_requires=[
          "ads>=0.12.3",
          "bibtexparser>=0.6.2",
          "requests>=2.0",
          "packaging>=17.0", 
          "future>=0.12.0 ; python_version < '3.0'",
      ],
      entry_points={"console_scripts": ["adstex=adstex:main"]},
  )
  
subject: add packaging