old_contents: from setuptools import setup
  
  setup(
      name="seq2seq",
      version="0.1",
      install_requires=[
          "numpy",
          "tensorflow",
          "matplotlib"
      ]
  )
  
new_contents: from setuptools import setup
  
  setup(
      name="seq2seq",
      version="0.1",
      install_requires=[
          "numpy",
          "tensorflow",
          "matplotlib",
          "pyyaml"
      ]
  )
  
subject: Add pyyaml to setup.py