python更新pip失败新手求助，python升级pip失败

7

2016-03-28 13:10:10 &＃43;08:00

&＃64;lxy pip 7.1.2 from /Library/Python/2.7/site-packages/pip-7.1.2-py2.7.egg (python 2.7)

输入 python -m pip install --upgrade pip 的时候显示的还是

Collecting pip

Using cached pip-8.1.1-py2.py3-none-any.whl

Installing collected packages: pip

Found existing installation: pip 7.1.2

Uninstalling pip-7.1.2:

Exception:

Traceback (most recent call last):

File "/Library/Python/2.7/site-packages/pip-7.1.2-py2.7.egg/pip/basecommand.py", line 211, in main

status &＃61; self.run(options, args)

File "/Library/Python/2.7/site-packages/pip-7.1.2-py2.7.egg/pip/commands/install.py", line 311, in run

root&＃61;options.root_path,

File "/Library/Python/2.7/site-packages/pip-7.1.2-py2.7.egg/pip/req/req_set.py", line 640, in install

requirement.uninstall(auto_confirm&＃61;True)

File "/Library/Python/2.7/site-packages/pip-7.1.2-py2.7.egg/pip/req/req_install.py", line 716, in uninstall

paths_to_remove.remove(auto_confirm)

File "/Library/Python/2.7/site-packages/pip-7.1.2-py2.7.egg/pip/req/req_uninstall.py", line 125, in remove

renames(path, new_path)

File "/Library/Python/2.7/site-packages/pip-7.1.2-py2.7.egg/pip/utils/__init__.py", line 315, in renames

shutil.move(old, new)

File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/shutil.py", line 300, in move

rmtree(src)

File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/shutil.py", line 247, in rmtree

rmtree(fullname, ignore_errors, onerror)

File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/shutil.py", line 252, in rmtree

onerror(os.remove, fullname, sys.exc_info())

File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/shutil.py", line 250, in rmtree

os.remove(fullname)

OSError: [Errno 13] Permission denied: &＃39;/Library/Python/2.7/site-packages/pip-7.1.2-py2.7.egg/EGG-INFO/dependency_links.txt&＃39;

You are using pip version 7.1.2, however version 8.1.1 is available.

You should consider upgrading via the &＃39;pip install --upgrade pip&＃39; command.