Python 另一个`bash: pip: command not found`
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Yet another `bash: pip: command not found`
提问by RolfBly
Lots of installation instructions tell you to do pip install [package]. But in my case that won't work, it'll say -bash: pip: command not found
很多安装说明都告诉你去做pip install [package]。但在我的情况下，这行不通，它会说-bash: pip: command not found
python pip install [package]works OK. Likewise for easy_install, won't run by itself, will run when started with python.
python pip install [package]工作正常。同样 for easy_install，不会自己运行，会在用 python 启动时运行。
I'm confused as to how it shouldwork. Pip is no executable, there's no module called pip.py, there's only <path>\pip\__init__.py. So if pip install [package]is to work properly, the bash shell must understand when to act as a python interpreter. Which it doesn't.
我对它应该如何工作感到困惑。Pip 没有可执行文件，没有名为 pip.py 的模块，只有<path>\pip\__init__.py. 因此，如果pip install [package]要正常工作，bash shell 必须了解何时充当 python 解释器。它没有。
I don't believe all those install instructions are off. So I must be missing something. What?
我不相信所有这些安装说明都已关闭。所以我一定错过了一些东西。什么？
Thisdidn't help, nor did this, in fact trying sudo apt-get install python-pipled to what I think is an unresolved bug. So I had to revert to this solution, to get me a somewhat working pip. (Now read again from the top).
这并没有帮助，也没有这个，事实上是在试图sudo apt-get install python-pip引发了什么，我认为是一个未解决的bug。所以我不得不恢复到这个解决方案，让我得到一个有点工作的点子。（现在从顶部再次阅读）。
Edit: Python 2.7. Not 3.x.
编辑：Python 2.7。不是 3.x。
回答by Hong
Most packages, including Debian's package, adds a /usr/bin/pip(or pip3, see below). See: https://packages.debian.org/jessie/all/python-pip/filelist
大多数软件包，包括 Debian 的软件包，都会添加一个/usr/bin/pip（或pip3，见下文）。请参阅：https: //packages.debian.org/jessie/all/python-pip/filelist
I thinkthe pip installer via get-pip.py also does this.
我认为通过 get-pip.py 的 pip 安装程序也可以这样做。
The file basically relays it through python via console_scripts.
该文件基本上通过console_scripts通过python中继它。
Check your /usr/bin and /usr/local/bin for pip. (if you installed pip outside of a package manager or without root/sudo then they probably don't exist). But they should...
检查您的 /usr/bin 和 /usr/local/bin 是否有 pip。（如果你在包管理器之外安装了 pip 或者没有 root/sudo 那么它们可能不存在）。但是他们应该...
If you're on python3, the file might be named pip3 so check /usr/bin and /usr/local/bin for that instead.
如果您使用的是 python3，则该文件可能被命名为 pip3，因此请改为检查 /usr/bin 和 /usr/local/bin。
You can add an entry to your .bash_aliases to alias if you want the shortcut:
如果需要快捷方式，您可以在 .bash_aliases 中添加一个条目到别名：
alias pip='pip3'
# or
# alias pip='python pip'
回答by RolfBly
Attempts to re-install or fix failed. So I removed pip completely and did what I hope is a clean install. First:
尝试重新安装或修复失败。所以我完全删除了 pip 并做了我希望的全新安装。第一的：
sudo apt-get remove --auto-remove python-pip
Then delete pips caches and existing downloads, where appropriate (in my case, I left still working pipsinside virtual environments alone):
然后在适当的情况下删除 pips 缓存和现有下载（在我的情况下，我仍然pips单独在虚拟环境中工作）：
sudo find / -type d -name 'pip*'
sudo rm -rf <dirname>
Then download the official pip installer and install it:
然后下载官方的pip安装程序并安装：
wget https://bootstrap.pypa.io/get-pip.py
sudo python get-pip.py
Now pip freezeruns without errors. In addition:
现在pip freeze运行没有错误。此外：
the cause was that the pip-script was gone. After the re-install, it's there again:
/usr/local/bin/pip. So what I thought:the bash shell must understand when to act as a python interpreter. Which it doesn't.
is not right. The shell willlaunch a python script, if its shebang-line points to the proper interpreter. Learning all the time...
many sources suggest to
sudo apt-get install python-pip. That's wrong.apt-getis several versions behind the current stable one. Mixing versions leads to all sorts of errors.
原因是 pip 脚本消失了。重新安装后，它又出现了：
/usr/local/bin/pip。所以我的想法是：bash shell 必须了解何时充当 python 解释器。它没有。
是不正确的。shell将启动一个 python 脚本，如果它的 shebang-line 指向正确的解释器。一直在学习...
许多消息来源建议
sudo apt-get install python-pip。那是错误的。apt-get是当前稳定版本后面的几个版本。混合版本会导致各种错误。
回答by Saif Siddiqui
use python3 -m pip install Xwhere X is the package name like if I want to install Pillow Python Imaging Library is will use
使用python3 -m pip install X其中 X 是包名称，就像我想安装 Pillow Python Imaging Library 一样将使用
python3 -m pip install Pillow
