如何解决ubuntu 16.04上升级pip的问题？

下面是发生的情况。我甚至尝试删除pip，但它显示了相同的问题。我的python版本是2.7.12

saikat@saikat:~$ pip install --upgrade pip
Collecting pip
  Using cached pip-9.0.1-py2.py3-none-any.whl
Installing collected packages: pip
  Found existing installation: pip 8.1.2
    Uninstalling pip-8.1.2:
Exception:
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/pip/basecommand.py", line 215, in main
    status = self.run(options, args)
  File "/usr/local/lib/python2.7/dist-packages/pip/commands/install.py", line 317, in run
    prefix=options.prefix_path,
  File "/usr/local/lib/python2.7/dist-packages/pip/req/req_set.py", line 736, in install
    requirement.uninstall(auto_confirm=True)
  File "/usr/local/lib/python2.7/dist-packages/pip/req/req_install.py", line 742, in uninstall
    paths_to_remove.remove(auto_confirm)
  File "/usr/local/lib/python2.7/dist-packages/pip/req/req_uninstall.py", line 115, in remove
    renames(path, new_path)
  File "/usr/local/lib/python2.7/dist-packages/pip/utils/__init__.py", line 267, in renames
    shutil.move(old, new)
  File "/usr/lib/python2.7/shutil.py", line 303, in move
    os.unlink(src)
OSError: [Errno 13] Permission denied: '/usr/bin/pip'
You are using pip version 8.1.2, however version 9.0.1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.

试试这个

wget https://pypi.python.org/packages/e7/a8/7556133689add8d1a54c0b14aeff0acb03c64707ce100ecd53934da1aa13/pip-8.1.2.tar.gz
tar -xzvf pip-8.1.2.tar.gz
cd pip-8.1.2
sudo python setup.py install

它应该会有帮助

试试这个

wget https://pypi.python.org/packages/e7/a8/7556133689add8d1a54c0b14aeff0acb03c64707ce100ecd53934da1aa13/pip-8.1.2.tar.gz
tar -xzvf pip-8.1.2.tar.gz
cd pip-8.1.2
sudo python setup.py install

---

这应该会有帮助

为什么要再次下载和安装已安装的版本？为什么要再次下载和安装已安装的版本？我猜您是用软件包管理器（apt？）安装python的。因此，您对/usr/*文件夹层次结构没有用户权限。在命令前面加上

sudo

（

sudo-pip-install…

）可能会有所帮助，但可能会导致其他问题（由于主文件夹不同，安装路径错误）。我猜您是用包管理器（apt？）安装python的。因此，您对/usr/*文件夹层次结构没有用户权限。在命令前面加上

sudo

（

sudo-pip-install…

）可能会有所帮助，但可能会导致其他问题（由于主文件夹不同，安装路径错误）