使用pip升级，输入：python.exe -m pip install –upgrade pip
报错一大堆：
ERROR: Exception:
Traceback (most recent call last):
File “C:\Users\lab\AppData\Roaming\Python\Python39\site-packages\pip\_internal\cli\base_command.py”, line 180, in exc_logging_wrapper
status = run_func(*args)
File “C:\Users\lab\AppData\Roaming\Python\Python39\site-packages\pip\_internal\cli\req_command.py”, line 245, in wrapper
return func(self, options, args)
File “C:\Users\lab\AppData\Roaming\Python\Python39\site-packages\pip\_internal\commands\install.py”, line 452, in run
installed = install_given_reqs(
File “C:\Users\lab\AppData\Roaming\Python\Python39\site-packages\pip\_internal\req\__init__.py”, line 72, in install_given_reqs
requirement.install(
File “C:\Users\lab\AppData\Roaming\Python\Python39\site-packages\pip\_internal\req\req_install.py”, line 847, in install
install_wheel(
File “C:\Users\lab\AppData\Roaming\Python\Python39\site-packages\pip\_internal\operations\install\wheel.py”, line 731, in install_wheel
_install_wheel(
File “C:\Users\lab\AppData\Roaming\Python\Python39\site-packages\pip\_internal\operations\install\wheel.py”, line 648, in _install_wheel
generated_console_scripts = maker.make_multiple(scripts_to_generate)
File “C:\Users\lab\AppData\Roaming\Python\Python39\site-packages\pip\_vendor\distlib\scripts.py”, line 436, in make_multiple
filenames.extend(self.make(specification, options))
File “C:\Users\lab\AppData\Roaming\Python\Python39\site-packages\pip\_internal\operations\install\wheel.py”, line 429, in make
return super().make(specification, options)
File “C:\Users\lab\AppData\Roaming\Python\Python39\site-packages\pip\_vendor\distlib\scripts.py”, line 425, in make
self._make_script(entry, filenames, options=options)
File “C:\Users\lab\AppData\Roaming\Python\Python39\site-packages\pip\_vendor\distlib\scripts.py”, line 325, in _make_script
self._write_script(scriptnames, shebang, script, filenames, ext)
File “C:\Users\lab\AppData\Roaming\Python\Python39\site-packages\pip\_vendor\distlib\scripts.py”, line 249, in _write_script
launcher = self._get_launcher(‘t’)
File “C:\Users\lab\AppData\Roaming\Python\Python39\site-packages\pip\_vendor\distlib\scripts.py”, line 404, in _get_launcher
raise ValueError(msg)
ValueError: Unable to find resource t64.exe in package pip._vendor.distlib
解决办法：
使用这个命令进行升级，而不是上面的
python -m pip install –user –upgrade pip