问题：使用pip为特定的python版本安装模块
在Ubuntu 10.04上，默认情况下安装了Python 2.6，然后我安装了Python 2.7。如何使用pip installPython 2.7安装软件包。
例如：
pip install beautifulsoup4
默认情况下会为Python 2.6安装BeautifulSoup
当我做：
import bs4
在Python 2.6中可以使用，但在Python 2.7中可以显示：
No module named bs4
On Ubuntu 10.04 by default Python 2.6 is installed, then I have installed Python 2.7. How can I use pip install to install packages for Python 2.7.
For example:
pip install beautifulsoup4
by default installs BeautifulSoup for Python 2.6
When I do:
import bs4
in Python 2.6 it works, but in Python 2.7 it says:
No module named bs4
回答 0
pip对要安装新软件包的Python实例使用已安装的版本。
在许多发行版中，可能会有单独的python2.6-pip和python2.7-pip程序包，并使用诸如pip-2.6和的二进制名称来调用pip-2.7。如果未将pip打包到所需目标的发行版中，则可能需要寻找setuptools或easyinstall软件包，或使用virtualenv（在生成的环境中始终包含pip）。
如果您在发行版中找不到任何内容，请在pip的网站上提供安装说明。
Use a version of pip installed against the Python instance you want to install new packages to.
In many distributions, there may be separate python2.6-pip and python2.7-pip packages, invoked with binary names such as pip-2.6 and pip-2.7. 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 includes installation instructions, if you can’t find anything within your distribution.
回答 1
另外，由于pip其本身是用python编写的，因此您可以使用要为其安装软件包的python版本进行调用：
python2.7 -m pip install foo
Alternatively, since pip itself is written in python, you can just call it with the python version you want to install the package for:
python2.7 -m pip install foo
回答 2
您可以使用相应的python为特定的python版本执行 pip模块：
Python 2.6：
python2.6 -m pip install beautifulsoup4
Python 2.7
python2.7 -m pip install beautifulsoup4
You can execute pip module for a specific python version using the corresponding python:
Python 2.6:
python2.6 -m pip install beautifulsoup4
Python 2.7
python2.7 -m pip install beautifulsoup4
回答 3
您可以使用此语法
python_version -m pip install your_package
例如。如果您正在运行python3.5，则将其命名为“ python3”，并想安装numpy软件包
python3 -m pip install numpy
You can use this syntax
python_version -m pip install your_package
For example. If you’re running python3.5, you named it as “python3”, and want to install numpy package
python3 -m pip install numpy
回答 4
在Windows中，您可以通过提及python版本来执行pip模块（您需要确保启动器在您的路径上）
py -2 -m pip install pyfora
In Windows, you can execute the pip module by mentioning the python version ( You need to ensure that the launcher is on your path )
py -2 -m pip install pyfora
回答 5
另外，如果您想使用特定版本的python安装软件包的特定版本，可以采用这种方法
sudo python2.7 -m pip install pyudev=0.16
如果“ =”无效，请使用==
x@ubuntuserv:~$ sudo python2.7 -m pip install pyudev=0.16
无效的要求：’pyudev = 0.16’=不是有效的运算符。你是说==吗？
x@ubuntuserv:~$ sudo python2.7 -m pip install pyudev==0.16
工作良好
Alternatively, if you want to install specific version of the package with the specific version of python, this is the way
sudo python2.7 -m pip install pyudev=0.16
if the “=” doesnt work, use ==
x@ubuntuserv:~$ sudo python2.7 -m pip install pyudev=0.16
Invalid requirement: ‘pyudev=0.16’
= is not a valid operator. Did you mean == ?
x@ubuntuserv:~$ sudo python2.7 -m pip install pyudev==0.16
works fine
回答 6
Python 2
sudo pip2 install johnbonjovi
Python 3
sudo pip3 install johnbonjovi
Python 2
sudo pip2 install johnbonjovi
Python 3
sudo pip3 install johnbonjovi
回答 7
如果您同时安装了2.7和3.x版本的python，则只需将python 3.x版本的python exe文件重命名为类似的名称-将“ python.exe”重命名为“ python3.exe”。现在，您可以将pip分别用于两个版本。如果您通常键入“ pip install”，则默认情况下将考虑2.7版本。如果要在3.x版本上安装它，则需要将命令调用为“ python3 -m pip install”。
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 “.
回答 8
对于Python 3
sudo apt-get install python3-pip
sudo pip3 install beautifulsoup4
对于Python 2
sudo apt-get install python2-pip
sudo pip2 install beautifulsoup4
在Debian / Ubuntu上， pip是在安装适用于Python 2的软件包时使用的命令，pip3而是在安装适用于Python 3的软件包时使用的命令。
For Python 3
sudo apt-get install python3-pip
sudo pip3 install beautifulsoup4
For Python 2
sudo apt-get install python2-pip
sudo pip2 install beautifulsoup4
On Debian/Ubuntu, pip is the command to use when installing packages
for Python 2, while pip3 is the command to use when installing
packages for Python 3.
回答 9
对于python2使用：
py -2 -m pip install beautifulsoup4
for python2 use:
py -2 -m pip install beautifulsoup4
回答 10
与其他任何python脚本一样，您可以指定运行它的python安装。您可以将其放在外壳配置文件中以保存别名。该$1指的是你传递给脚本的第一个参数。
# PYTHON3 PIP INSTALL V2
alias pip_install3="python3 -m $(which pip) install $1"
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 $1 refers to the first argument you pass to the script.
# PYTHON3 PIP INSTALL V2
alias pip_install3="python3 -m $(which pip) install $1"
回答 11
我在Windows上通过Chocolatey安装了Python 2.7 ，并在pip2.7.exe中找到了C:\tools\python2\Scripts。
使用此可执行文件而不是pip命令为我安装了正确的模块（requests对于Python 2.7）。
I had Python 2.7 installed via chocolatey on Windows and found pip2.7.exe in C:\tools\python2\Scripts.
Using this executable instead of the pip command installed the correct module for me (requests for Python 2.7).
回答 12
