我尝试升级（或卸载）setuptools：
pip install setuptools --upgrade
但是我收到了这样的错误
Exception:
Traceback (most recent call last):
File "/Library/Python/2.7/site-packages/pip-8.1.0-py2.7.egg/pip/basecommand.py", line 209, in main
status = self.run(options, args)
File "/Library/Python/2.7/site-packages/pip-8.1.0-py2.7.egg/pip/commands/install.py", line 317, in run
prefix=options.prefix_path,
File "/Library/Python/2.7/site-packages/pip-8.1.0-py2.7.egg/pip/req/req_set.py", line 726, in install
requirement.uninstall(auto_confirm=True)
File "/Library/Python/2.7/site-packages/pip-8.1.0-py2.7.egg/pip/req/req_install.py", line 746, in uninstall
paths_to_remove.remove(auto_confirm)
File "/Library/Python/2.7/site-packages/pip-8.1.0-py2.7.egg/pip/req/req_uninstall.py", line 115, in remove
renames(path, new_path)
File "/Library/Python/2.7/site-packages/pip-8.1.0-py2.7.egg/pip/utils/__init__.py", line 267, in renames
shutil.move(old, new)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/shutil.py", line 299, in move
copytree(src, real_dst, symlinks=True)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/shutil.py", line 208, in copytree
raise Error, errors
Error: [('/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/__init__.py', '/var/folders/0j/w8zdr8_d3090z1r38l11v0r00000gn/T/pip-0H2uCV-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/__init__.py', "[Errno 1] Operation not permitted: '/var/folders/0j/w8zdr8_d3090z1r38l11v0r00000gn/T/pip-0H2uCV-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/__init__.py'"), ('/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/__init__.pyc', '/var/folders/0j/w8zdr8_d3090z1r38l11v0r00000gn/T/pip-0H2uCV-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/__init__.pyc', "[Errno 1] Operation not permitted: '/var/folders/0j/w8zdr8_d3090z1r38l11v0r00000gn/T/pip-0H2uCV-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/__init__.pyc'"), ('/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/markers.py', '/var/folders/0j/w8zdr8_d3090z1r38l11v0r00000gn/T/pip-0H2uCV-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/markers.py', "[Errno 1] Operation not permitted: '/var/folders/0j/w8zdr8_d3090z1r38l11v0r00000gn/T/pip-0H2uCV-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/markers.py'"), ('/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/markers.pyc', '/var/folders/0j/w8zdr8_d3090z1r38l11v0r00000gn/T/pip-0H2uCV-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/markers.pyc', "[Errno 1] Operation not permitted: '/var/folders/0j/w8zdr8_d3090z1r38l11v0r00000gn/T/pip-0H2uCV-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/markers.pyc'"), ('/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib', '/var/folders/0j/w8zdr8_d3090z1r38l11v0r00000gn/T/pip-0H2uCV-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib', "[Errno 1] Operation not permitted: '/var/folders/0j/w8zdr8_d3090z1r38l11v0r00000gn/T/pip-0H2uCV-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib'")]
当我使用命令
时sudo pip install setuptools --no-use-wheel --upgrade
根据
虽然没有错误，但setuptools实际上并没有升级。
如何升级甚至卸载setuptools？