有大神可以帮忙看看下面的代码是什么问题吗？
chenzhengyi@chenzhengyideMacBook-Pro ~ % pip --version
Traceback (most recent call last):
File "/usr/local/bin/pip", line 11, in <module>
load_entry_point('pip==21.0.1', 'console_scripts', 'pip')()
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 489, in load_entry_point
return get_distribution(dist).load_entry_point(group, name)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 2843, in load_entry_point
return ep.load()
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 2434, in load
return self.resolve()
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 2440, in resolve
module = __import__(self.module_name, fromlist=['__name__'], level=0)
File "/Library/Python/2.7/site-packages/pip-21.0.1-py2.7.egg/pip/_internal/cli/main.py", line 60
sys.stderr.write(f"ERROR: {exc}")
^
SyntaxError: invalid syntax
chenzhengyi@chenzhengyideMacBook-Pro ~ %
你要切换到当前路径或者将scripts路径添加到环境变量才可以启动pip 才能查看 pip list 等命令操作 
有用的话，希望被采纳
