code: def get_python_files_from_list(files, excluded_files=None):
      
      if excluded_files is None:
          excluded_files = ['__init__.py']
      python_files = []
      for fl in files:
          if (fl.endswith('.py')
                  and fl not in excluded_files
                  and not fl.startswith('test')):
              python_files.append(fl)
  
      return python_files
docs: Return list of python file from files, without excluded files.
  
      :param files: List of files.
      :type files: list
  
      :param excluded_files: List of excluded file names.
      :type excluded_files: list, None
  
      :returns: List of python file without the excluded file, not started with
          test.
      :rtype: list