old_contents: import pkg_resources
  
  
  def check_dependencies(dependencies, message=None):
      missing_deps = []
      for dep in dependencies:
          try:
              pkg_resources.get_distribution(dep)
          except:
              missing_deps.append(dep)
      if missing_deps:
          message = message or "Whoops! You do not seem to have all the dependencies required."
          fix = ("You can fix this by running:\n\n"
                 "\t{install_command}\n\n"
                 "Note: Depending on your system's installation of Python, you may "
                 "need to use `pip2` or `pip3` instead of `pip`.").format(install_command='pip install --upgrade ' + ' '.join(missing_deps))
          raise RuntimeError('\n\n'.join([message, fix]))
  
new_contents: import pkg_resources
  
  
  def check_dependencies(dependencies, message=None):
      missing_deps = []
      for dep in dependencies:
          try:
              pkg_resources.get_distribution(dep)
          except:
              missing_deps.append(dep)
      if missing_deps:
          message = message or 'Whoops! You do not seem to have all the dependencies required.'
          install_command='pip install --upgrade ' + ' '.join(missing_deps)
          fix = ("You can fix this by running:\n\n"
                 f"\t{install_command}\n\n"
                 "Note: Depending on your system's installation of Python, you may "
                 "need to use `pip2` or `pip3` instead of `pip`.")
          raise RuntimeError('\n\n'.join([message, fix]))
  
subject: Make some code cleanups