old_contents: def file_is_allowed(file):
      return file.endswith(".py") and "__init__" not in file.title() and "Sample_City" not in file.title()
  
new_contents: def file_is_allowed(file):
      return file.endswith(".py") and "__Init__" not in file.title() and "Sample_City" not in file.title()
  
subject: Fix bug '__init__' showing in list of cities