bash 升级后pip坏了
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pip broken after upgrading
提问by dl8
I did pip install -U easyinstall, and then pip install -U pip to upgrade my pip. However, I get this error now when trying to use pip:
我做了 pip install -U easyinstall，然后 pip install -U pip 升级我的 pip。但是，在尝试使用 pip 时，我现在收到此错误：
root@d8fb98fc3a66:/# which pip
/usr/local/bin/pip
root@d8fb98fc3a66:/# pip
bash: /usr/bin/pip: No such file or directory
This is on an ubuntu 12.04 in a docker image.
这是在 docker 映像中的 ubuntu 12.04 上。
回答by falsetru
One reason can be remembed locations.
原因之一是可以记住位置。
You can clear the cached locations by issuing following command:
您可以通过发出以下命令来清除缓存的位置：
hash -r
SIDENOTE: Instead of which, using typecommand, you can see the hashed location:
旁注：您可以看到散列位置，而不是which使用type命令：
$ type pip
pip is /usr/local/bin/pip
$ pip -V
pip 1.5.6 from /usr/local/lib/python2.7/dist-packages (python 2.7)
$ type pip
pip is hashed (/usr/local/bin/pip)
回答by ADTC
If doing hash -rdoesn't work, it's possible that the new pipgot installed in /usr/local/bin/instead of the old one in /usr/bin/. And it so happens that the new location is not in the list of paths searched for executables.
如果这样做hash -r不起作用，则可能pip安装了新的/usr/local/bin/而不是旧的/usr/bin/。碰巧新位置不在搜索可执行文件的路径列表中。
In that case, eitherfix the list of paths orcopy the executables:
在这种情况下，要么修复路径列表，要么复制可执行文件：
cp -p /usr/local/bin/pip* /usr/bin/
You may also hardlink the executables instead of copying them (this may ensure that future upgrades are done correctly).
您还可以硬链接可执行文件而不是复制它们（这可以确保未来的升级正确完成）。
