Traceback (most recent call last):
  File "c:\users\tonyt\appdata\local\programs\python\python35\lib\runpy.py", line 170, in _run_module_as_main
    "__main__", mod_spec)
  File "c:\users\tonyt\appdata\local\programs\python\python35\lib\runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "C:\Users\tonyt\AppData\Local\Programs\Python\Python35\Scripts\pip.exe\__main__.py", line 5, in <module>
  File "c:\users\tonyt\appdata\local\programs\python\python35\lib\site-packages\pip\_internal\cli\main.py", line 58
    sys.stderr.write(f"ERROR: {exc}")

报错信息