old_contents: import os.path as path
  from setuptools import setup
  
  
  def get_readme(filename):
      if not path.exists(filename):
          return ""
  
      with open(path.join(path.dirname(__file__), filename)) as readme:
          content = readme.read()
      return content
  
  setup(name="mdx_linkify",
        version="1.2",
        author="Raitis (daGrevis) Stengrevics",
        author_email="dagrevis@gmail.com",
        description="Link recognition for Python Markdown",
        license="MIT",
        keywords="markdown links",
        url="https://github.com/daGrevis/mdx_linkify",
        packages=["mdx_linkify"],
        long_description=get_readme("README.md"),
        classifiers=[
            "Topic :: Text Processing :: Markup",
            "Topic :: Utilities",
            "Programming Language :: Python :: 2.7",
            "Programming Language :: Python :: 3.3",
            "Programming Language :: Python :: Implementation :: PyPy",
            "Development Status :: 4 - Beta",
            "License :: OSI Approved :: MIT License",
        ],
        install_requires=["Markdown>=3.0", "bleach>=3.1.0"],
        test_suite="mdx_linkify.tests")
  
new_contents: import os.path as path
  from setuptools import setup
  
  
  def get_readme(filename):
      if not path.exists(filename):
          return ""
  
      with open(path.join(path.dirname(__file__), filename)) as readme:
          content = readme.read()
      return content
  
  setup(name="mdx_linkify",
        version="1.2",
        author="Raitis (daGrevis) Stengrevics",
        author_email="dagrevis@gmail.com",
        description="Link recognition for Python Markdown",
        license="MIT",
        keywords="markdown links",
        url="https://github.com/daGrevis/mdx_linkify",
        packages=["mdx_linkify"],
        long_description=get_readme("README.md"),
        long_description_content_type="text/markdown",
        classifiers=[
            "Topic :: Text Processing :: Markup",
            "Topic :: Utilities",
            "Programming Language :: Python :: 2.7",
            "Programming Language :: Python :: 3.3",
            "Programming Language :: Python :: Implementation :: PyPy",
            "Development Status :: 4 - Beta",
            "License :: OSI Approved :: MIT License",
        ],
        install_requires=["Markdown>=3.0", "bleach>=3.1.0"],
        test_suite="mdx_linkify.tests")
  
subject: Set long_description_content_type to Markdown