old_contents: #!/usr/bin/env python
  """Installation script."""
  try:
      from setuptools import setup
  except ImportError:
      from distutils.core import setup
  
  import ast
  import codecs
  import os
  import re
  
  
  CURRENT_DIR = os.path.dirname(__file__)
  
  
  def get_long_description() -> str:
      readme_path = os.path.join(CURRENT_DIR, "README.md")
      with codecs.open(readme_path, encoding="utf8") as ld_file:
          return ld_file.read()
  
  
  def get_version():
      pydot_py = os.path.join(CURRENT_DIR, 'pydot.py')
      _version_re = re.compile(r'__version__\s+=\s+(?P<version>.*)')
      with open(pydot_py, 'r', encoding='utf8') as f:
          match = _version_re.search(f.read())
          version = match.group('version') if match is not None else '"unknown"'
      return str(ast.literal_eval(version))
  
  
  setup(
      name='pydot',
      version=get_version(),
      description="Python interface to Graphviz's Dot",
      author='Ero Carrera',
      author_email='ero@dkbza.org',
      maintainer='Sebastian Kalinowski',
      maintainer_email='sebastian@kalinowski.eu',
      url='https://github.com/pydot/pydot',
      license='MIT',
      keywords='graphviz dot graphs visualization',
      python_requires='>=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*',
      classifiers=[
          'Development Status :: 5 - Production/Stable',
          'Intended Audience :: Developers',
          'Intended Audience :: Science/Research',
          'License :: OSI Approved :: MIT License',
          'Natural Language :: English',
          'Operating System :: OS Independent',
          'Programming Language :: Python :: 2',
          'Programming Language :: Python :: 2.7',
          'Programming Language :: Python :: 3',
          'Programming Language :: Python :: 3.4',
          'Programming Language :: Python :: 3.5',
          'Programming Language :: Python :: 3.6',
          'Programming Language :: Python :: 3.7',
          'Topic :: Scientific/Engineering :: Visualization',
          'Topic :: Software Development :: Libraries :: Python Modules'],
      long_description=get_long_description(),
      long_description_content_type="text/markdown",
      py_modules=['pydot', 'dot_parser'],
      install_requires=['pyparsing>=2.1.4'],
      tests_require=['chardet'])
  
new_contents: #!/usr/bin/env python
  """Installation script."""
  try:
      from setuptools import setup
  except ImportError:
      from distutils.core import setup
  
  import ast
  import codecs
  import os
  import re
  
  
  CURRENT_DIR = os.path.dirname(__file__)
  
  
  def get_long_description():
      readme_path = os.path.join(CURRENT_DIR, "README.md")
      with codecs.open(readme_path, encoding="utf8") as ld_file:
          return ld_file.read()
  
  
  def get_version():
      pydot_py = os.path.join(CURRENT_DIR, 'pydot.py')
      _version_re = re.compile(r'__version__\s+=\s+(?P<version>.*)')
      with codecs.open(pydot_py, 'r', encoding='utf8') as f:
          match = _version_re.search(f.read())
          version = match.group('version') if match is not None else '"unknown"'
      return str(ast.literal_eval(version))
  
  
  setup(
      name='pydot',
      version=get_version(),
      description="Python interface to Graphviz's Dot",
      author='Ero Carrera',
      author_email='ero@dkbza.org',
      maintainer='Sebastian Kalinowski',
      maintainer_email='sebastian@kalinowski.eu',
      url='https://github.com/pydot/pydot',
      license='MIT',
      keywords='graphviz dot graphs visualization',
      python_requires='>=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*',
      classifiers=[
          'Development Status :: 5 - Production/Stable',
          'Intended Audience :: Developers',
          'Intended Audience :: Science/Research',
          'License :: OSI Approved :: MIT License',
          'Natural Language :: English',
          'Operating System :: OS Independent',
          'Programming Language :: Python :: 2',
          'Programming Language :: Python :: 2.7',
          'Programming Language :: Python :: 3',
          'Programming Language :: Python :: 3.4',
          'Programming Language :: Python :: 3.5',
          'Programming Language :: Python :: 3.6',
          'Programming Language :: Python :: 3.7',
          'Topic :: Scientific/Engineering :: Visualization',
          'Topic :: Software Development :: Libraries :: Python Modules'],
      long_description=get_long_description(),
      long_description_content_type="text/markdown",
      py_modules=['pydot', 'dot_parser'],
      install_requires=['pyparsing>=2.1.4'],
      tests_require=['chardet'])
  
subject: Fix code not working with Python 2.7