blocks|key|336204|text|使用针对要安装新包的pip实例安装的Python版本。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|336205|在许多发行版中，可能有单独的python2.6-pip和python2.7-pip包，使用pip-2.6和pip-2.7等二进制名称调用它们。如果您的发行版中没有为所需的目标打包pip，您可以查找setuptools或easyinstall包，或者使用virtualenv+(在生成的环境中将始终包含pip+)。|336206|pip的网站includes+installation+instructions，如果您在您的发行版中找不到任何东西。|336207|entityMap|0|LINK|mutability|MUTABLE|url|https://pip.pypa.io/en/stable/installing/^0|A|3|0|E|D|S|D|19|7|1H|7|0|6|Y|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@$9|S|A|T|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|U|8|@$9|V|A|W|B|C]|$9|X|A|Y|B|C]|$9|Z|A|10|B|C]|$9|11|A|12|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|13|8|@]|D|@$9|14|A|15|1|16]]|E|$]]|$1|J|3|-4|5|6|7|17|8|@]|D|@]|E|$]]]|K|$L|$5|M|N|O|E|$P|Q]]]]

Use a version of <code>pip</code> installed against the Python instance you want to install new packages to.

In many distributions, there may be separate <code>python2.6-pip</code> and <code>python2.7-pip</code> packages, invoked with binary names such as <code>pip-2.6</code> and <code>pip-2.7</code>. If pip is not packaged in your distribution for the desired target, you might look for a setuptools or easyinstall package, or use virtualenv (which will always include pip in a generated environment).

pip's website <a href="https://pip.pypa.io/en/stable/installing/" rel="noreferrer">includes installation instructions</a>, if you can't find anything within your distribution.

blocks|key|552684|text|或者，因为pip本身是用Python语言编写的，所以您可以使用要为其安装包的python版本来调用它：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|552685|python2.7+-m+pip+install+foo|code-block|syntax|javascript|552686|entityMap^0|5|3|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

Alternatively, since <code>pip</code> itself is written in python, you can just call it with the python version you want to install the package for:

<pre><code>python2.7 -m pip install foo
</code></pre>

blocks|key|336415|text|您可以使用以下语法|type|unstyled|depth|inlineStyleRanges|entityRanges|data|336416|python_version+-m+pip+install+your_package|code-block|syntax|javascript|336417|例如。如果您运行的是python3.5，则将其命名为"python3"，并希望安装numpy包|336418|python3+-m+pip+install+numpy|336419|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

You can use this syntax

<pre><code>python_version -m pip install your_package
</code></pre>

For example. If you're running python3.5, you named it as "python3", and want to install numpy package

<pre><code>python3 -m pip install numpy
</code></pre>

blocks|key|552751|text|在Windows中，您可以通过提及python版本来执行pip模块(您需要确保启动程序在您的路径上)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|552752|py+-2+-m+pip+install+pyfora|code-block|syntax|javascript|552753|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

In Windows, you can execute the pip module by mentioning the python version ( You need to ensure that the launcher is on your path )

<pre><code>py -2 -m pip install pyfora
</code></pre>

blocks|key|336694|text|我已经在Windows机器上尝试过了，并且工作正常|type|unstyled|depth|inlineStyleRanges|entityRanges|data|336695|如果你想安装python+3.7版的opencv，下面是你的方法！|336696|py+-3.7+-m+pip+install+opencv-python|code-block|syntax|javascript|336697|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Have tried this on a Windows machine and it works
If you wanna install opencv for python version 3.7, heres how you do it!
<pre><code>py -3.7 -m pip install opencv-python
</code></pre>

blocks|key|552891|text|或者，如果要使用特定版本的python安装包的特定版本，则可以使用以下方法|type|unstyled|depth|inlineStyleRanges|entityRanges|data|552892|sudo+python2.7+-m+pip+install+pyudev=0.16|code-block|syntax|javascript|552893|如果"=“不起作用，使用==|552894|x@ubuntuserv:~$+sudo+python2.7+-m+pip+install+pyudev=0.16|offset|length|style|CODE|552895|无效要求：'pyudev=0.16‘=不是有效的运算符。你是说==吗？|552896|x@ubuntuserv:~$+sudo+python2.7+-m+pip+install+pyudev==0.16|552897|工作正常|552898|entityMap^0|0|0|0|0|1L|0|0|0|1M|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|X|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Y|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|Z|8|@$K|10|L|11|M|N]]|9|@]|A|$]]|$1|O|3|P|5|6|7|12|8|@]|9|@]|A|$]]|$1|Q|3|R|5|6|7|13|8|@$K|14|L|15|M|N]]|9|@]|A|$]]|$1|S|3|T|5|6|7|16|8|@]|9|@]|A|$]]|$1|U|3|-4|5|6|7|17|8|@]|9|@]|A|$]]]|V|$]]

Alternatively, if you want to install specific version of the package with the specific version of python, this is the way 

<pre><code>sudo python2.7 -m pip install pyudev=0.16
</code></pre>

if the "=" doesnt work, use ==

<code>x@ubuntuserv:~$ sudo python2.7 -m pip install pyudev=0.16</code>

Invalid requirement: 'pyudev=0.16'
= is not a valid operator. Did you mean == ?

<code>x@ubuntuserv:~$ sudo python2.7 -m pip install pyudev==0.16</code>

works fine

blocks|key|336325|text|Python+2|type|unstyled|depth|inlineStyleRanges|entityRanges|data|336326|sudo+pip2+install+johnbonjovi++|code-block|syntax|javascript|336327|Python+3|336328|sudo+pip3+install+johnbonjovi|336329|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Python 2 

<pre><code>sudo pip2 install johnbonjovi 
</code></pre>

Python 3 

<pre><code>sudo pip3 install johnbonjovi
</code></pre>

blocks|key|552983|text|如果您同时安装了Python2.7和3.x版本，那么只需将Python3.x版本的python+exe文件重命名为类似于-+"python.exe“的名称即可。现在，您可以分别为两个版本使用pip。如果你通常输入"pip+install“，默认情况下它会考虑2.7版本。如果你想在3.x版本上安装它，你需要调用命令"python3+-m+pip+install“。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|552984|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

If you have both 2.7 and 3.x versions of python installed, then just rename the python exe file of python 3.x version to something like - "python.exe" to "python3.exe". Now you can use pip for both versions individually. If you normally type "pip install " it will consider the 2.7 version by default. If you want to install it on the 3.x version you need to call the command as "python3 -m pip install ".

blocks|key|553048|text|对于python2使用：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|553049|py+-2+-m+pip+install+beautifulsoup4|code-block|syntax|javascript|553050|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

for python2 use:

<pre><code>py -2 -m pip install beautifulsoup4
</code></pre>

blocks|key|553037|text|与任何其他python脚本一样，您可以指定要运行它的python安装。您可以将其放入您的shell配置文件中以保存别名。$1引用您传递给脚本的第一个参数。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|553038|#+PYTHON3+PIP+INSTALL+V2
alias+pip_install3="python3+-m+$(which+pip)+install+$1"|code-block|syntax|javascript|553039|entityMap^0|1O|2|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

As with any other python script, you may specify the python installation you'd like to run it with. You may put this in your shell profile to save the alias. The <code>$1</code> refers to the first argument you pass to the script.

<pre><code># PYTHON3 PIP INSTALL V2
alias pip_install3="python3 -m $(which pip) install $1"
</code></pre>

blocks|key|336466|text|我在Windows上通过chocolatey安装了Python2.7，在C:\tools\python2\Scripts中找到了pip2.7.exe。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|336467|使用这个可执行文件而不是pip命令为我安装了正确的模块(Python2.7的requests)。|336468|entityMap|0|LINK|mutability|MUTABLE|url|https://chocolatey.org/^0|10|O|1S|A|C|A|0|0|C|3|12|8|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]|$9|S|A|T|B|C]]|D|@$9|U|A|V|1|W]]|E|$]]|$1|F|3|G|5|6|7|X|8|@$9|Y|A|Z|B|C]|$9|10|A|11|B|C]]|D|@]|E|$]]|$1|H|3|-4|5|6|7|12|8|@]|D|@]|E|$]]]|I|$J|$5|K|L|M|E|$N|O]]]]

I had Python 2.7 installed via <a href="https://chocolatey.org/" rel="nofollow noreferrer">chocolatey</a> on Windows and found <code>pip2.7.exe</code> in <code>C:\tools\python2\Scripts</code>.

Using this executable instead of the <code>pip</code> command installed the correct module for me (<code>requests</code> for Python 2.7).

blocks|key|336564|text|我在另一个名为Twisted的包中遇到了类似的问题。我想为Python2.7安装它，但它只为Python2.6(系统的默认版本)安装。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|336565|做一个简单的改变对我来说很管用。|336566|在将Python2.7的路径添加到$PATH变量时，像这样将它添加到前面：PATH=/usr/local/bin:$PATH，以便系统使用该版本。|offset|length|style|CODE|336567|如果你遇到更多的问题，你可以关注这篇对我有帮助的博客文章--+https://github.com/h2oai/h2o-2/wiki/installing-python-2.7-on-centos-6.3.-follow-this-sequence-exactly-for-centos-machine-only|336568|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/h2oai/h2o-2/wiki/installing-python-2.7-on-centos-6.3.-follow-this-sequence-exactly-for-centos-machine-only^0|0|0|H|5|11|P|0|V|3H|0|0^^$0|@$1|2|3|4|5|6|7|T|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|U|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|V|8|@$F|W|G|X|H|I]|$F|Y|G|Z|H|I]]|9|@]|A|$]]|$1|J|3|K|5|6|7|10|8|@]|9|@$F|11|G|12|1|13]]|A|$]]|$1|L|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|M|$N|$5|O|P|Q|A|$R|S]]]]

I faced a similar problem with another package called Twisted. I wanted to install it for Python 2.7, but it only got installed for Python 2.6 (system's default version).

Making a simple change worked for me. 

When adding Python 2.7's path to your <code>$PATH</code> variable, append it to the front like this: <code>PATH=/usr/local/bin:$PATH</code>, so that the system uses that version. 

If you face more problems, you can follow this blog post which helped me - <a href="https://github.com/h2oai/h2o-2/wiki/installing-python-2.7-on-centos-6.3.-follow-this-sequence-exactly-for-centos-machine-only" rel="nofollow noreferrer">https://github.com/h2oai/h2o-2/wiki/installing-python-2.7-on-centos-6.3.-follow-this-sequence-exactly-for-centos-machine-only</a>

On Ubuntu 10.04 by default Python 2.6 is installed, then I have installed Python 2.7. How can I use <code>pip install</code> to install packages for Python 2.7.

For example:

<pre><code>pip install beautifulsoup4
</code></pre>

by default installs BeautifulSoup for Python 2.6

When I do:

<pre><code>import bs4
</code></pre>

in Python 2.6 it works, but in Python 2.7 it says:

<pre><code>No module named bs4
</code></pre>

Install a module using pip for specific python version

在Ubuntu 10.04上，默认安装了Python 2.6，然后我安装了Python 2.7。如何使用pip install安装Python2.7的包。例如：pip install beautifulsoup4默认情况下，安装Python2.6的BeautifulSoup当我这样做的时候：import bs4在Python2.6中，它可以工作，但在Python2.7中，它说：No module 

问使用pip为特定的python版本安装模块
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