old_contents: from setuptools import setup, find_packages
  
  setup(
      name = "ccpoviz",
      version = "0.0.1",
      packages = find_packages(),
      scripts = ['scripts/ccpoviz'],
  
      install_requires = [
          'docutils>=0.3',
          'pystache>=0.5',
          ],
  
      package_data = {
          'ccpoviz': ['data/*.json', 'data/*.dat'],
      },
  
      # metadata for upload to PyPI
      author = "Tschijnmo TSCHAU",
      author_email = "tschijnmotschau@gmail.com",
      description = "Command-line batch molecular visualizer",
      license = "MIT",
      keywords = "visualization, chemistry",
      url = "http://tschijnmo.github.io/ccpoviz",
  
  )
  
new_contents: from setuptools import setup, find_packages
  
  setup(
      name = "ccpoviz",
      version = "0.0.1",
      packages = find_packages(),
      scripts = ['scripts/ccpoviz'],
  
      install_requires = [
          'docutils>=0.3',
          'pystache>=0.5',
          'PyYAML>=3.11',
          ],
  
      package_data = {
          'ccpoviz': ['data/*.json', 'data/*.dat'],
      },
  
      # metadata for upload to PyPI
      author = "Tschijnmo TSCHAU",
      author_email = "tschijnmotschau@gmail.com",
      description = "Command-line batch molecular visualizer",
      license = "MIT",
      keywords = "visualization, chemistry",
      url = "http://tschijnmo.github.io/ccpoviz",
  
  )
  
subject: Add the PyYAML dependency