old_contents: import os
  
  from coalib.results.Result import Result
  from coalib.bears.GlobalBear import GlobalBear
  
  
  class PythonPackageInitBear(GlobalBear):
  
      LANGUAGES = {'Python', 'Python 3', 'Python 2'}
      AUTHORS = {'The coala developers'}
      AUTHORS_EMAILS = {'coala-devel@googlegroups.com'}
      LICENSE = 'AGPL-3.0'
  
      def run(self):
          """
          Looks for missing __init__.py files in directories
          containing python files.
          """
          dirs = {os.path.split(filename)[0]
                  for filename in self.file_dict.keys()
                  if filename.endswith('.py')}
  
          missing_inits = {directory for directory in dirs
                           if not os.path.join(directory, '__init__.py')
                           in self.file_dict}
  
          for missing_init_dir in missing_inits:
              yield Result(self,
                           'Directory "{}" does not contain __init__.py file'
                           .format(os.path.relpath(missing_init_dir,
                                                   self.get_config_dir())))
  
new_contents: import os
  
  from coalib.results.Result import Result
  from coalib.bears.GlobalBear import GlobalBear
  
  
  class PythonPackageInitBear(GlobalBear):
  
      LANGUAGES = {'Python', 'Python 3', 'Python 2'}
      AUTHORS = {'The coala developers'}
      AUTHORS_EMAILS = {'coala-devel@googlegroups.com'}
      LICENSE = 'AGPL-3.0'
      ASCIINEMA_URL = 'https://asciinema.org/a/151310'
  
      def run(self):
          """
          Looks for missing __init__.py files in directories
          containing python files.
          """
          dirs = {os.path.split(filename)[0]
                  for filename in self.file_dict.keys()
                  if filename.endswith('.py')}
  
          missing_inits = {directory for directory in dirs
                           if not os.path.join(directory, '__init__.py')
                           in self.file_dict}
  
          for missing_init_dir in missing_inits:
              yield Result(self,
                           'Directory "{}" does not contain __init__.py file'
                           .format(os.path.relpath(missing_init_dir,
                                                   self.get_config_dir())))
  
subject: Create Asciinema