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        pip 或 pip3 为 Python 3 安装包?

        pip or pip3 to install packages for Python 3?(pip 或 pip3 为 Python 3 安装包?)
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                  本文介绍了pip 或 pip3 为 Python 3 安装包?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着跟版网的小编来一起学习吧!


                  我有一台装有 OS X El Captain 的 Macbook.我认为 Python 2.7 是预装的.但是,我也安装了 Python 3.5.当我开始使用 Python 3 时,我读到如果我想安装一个包,我应该输入:

                  I have a Macbook with OS X El Captain. I think that Python 2.7 comes preinstalled on it. However, I installed Python 3.5 too. When I started using Python 3, I read that if I want to install a package, I should type:

                  pip3 install some_package


                  Anyway, now when I use

                  pip install some_package

                  我为 Python 3 安装了 some_package.我的意思是我可以导入它并毫无问题地使用它.此外,当我在 Terminal 中仅键入 pip3 时,我收到了有关用法的消息:

                  I get some_package installed for Python 3. I mean I can import it and use it without problems. Moreover, when I type just pip3 in Terminal, I got this message about the usage:

                    pip <command> [options]

                  这与我输入 pip 时得到的消息相同.

                  which is the same message I get when I type just pip.

                  这是否意味着在以前的版本中,情况有所不同,现在 pippip3 可以互换使用?如果是这样,并且为了争论,我如何为 Python 2 而不是 Python 3 安装包?

                  Does it mean that in previos versions, things were different, and now pip and pip3 can be used interchangeably? If so, and for the sake of argument, how can I install packages for Python 2 instead of Python 3?


                  您的 pip 是与 pip3 相同的可执行文件路径的软链接.您可以使用以下命令检查您的 pippip3 实际路径在哪里:

                  Your pip is a soft link to the same executable file path with pip3. you can use the commands below to check where your pip and pip3 real paths are:

                  $ ls -l `which pip`
                  $ ls -l `which pip3`


                  You may also use the commands below to know more details:

                  $ pip show pip
                  $ pip3 show pip


                  When we install different versions of python, we may create such soft links to

                  • 将默认点设置为某个版本.
                  • 为不同的版本制作不同的链接.



                  More information below if you're interested in how it happens in different cases:

                  • MacOS/Homebrew
                  • Fedora/CentOS
                  • Debian/Ubuntu

                  这篇关于pip 或 pip3 为 Python 3 安装包?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持跟版网!



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                  What is the difference between old style and new style classes in Python?(Python中的旧样式类和新样式类有什么区别?)
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                  How to put the legend out of the plot(如何将传说从情节中剔除)
                  Why is the output of my function printing out quot;Nonequot;?(为什么我的函数输出打印出“无?)

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