code: def fixcode(**kwargs):
      
      # repository direcotry
      repo_dir = Path(__file__).parent.absolute()
  
      # source code directory
      source_dir = Path(repo_dir, package.__name__)
  
      if source_dir.exists():
          print("Source code locate at: '%s'." % source_dir)
          print("Auto pep8 all python file ...")
          source_dir.autopep8(**kwargs)
      else:
          print("Source code directory not found!")
  
      # unittest code directory
      unittest_dir = Path(repo_dir, "tests")
      if unittest_dir.exists():
          print("Unittest code locate at: '%s'." % unittest_dir)
          print("Auto pep8 all python file ...")
          unittest_dir.autopep8(**kwargs)
      else:
          print("Unittest code directory not found!")
  
      print("Complete!")
docs: auto pep8 format all python file in ``source code`` and ``tests`` dir.