"brew install"和"brew install"之间有区别吗?和"pip install"? [英] Is there a difference between "brew install" and "pip install"?

问题描述

我想在Mac上安装枕头.我有python 2.7和python 3.4，都与Homebrew一起安装.我尝试了brew install pillow，但效果很好，但仅适用于python 2.7.我还没有找到为python 3安装它的方法.我尝试了brew install pillow3，但是没有运气.我在SO上找到了一条帖子，上面说要先用Homebrew安装pip3，然后再使用pip3 install pillow.碰巧，我已经安装了pip3.

I want to install pillow on my Mac. I have python 2.7 and python 3.4, both installed with Homebrew. I tried brew install pillow and it worked fine, but only for python 2.7. I haven't been able to find a way to install it for python 3. I tried brew install pillow3 but no luck. I've found a post on SO that says to first install pip3 with Homebrew and then use pip3 install pillow. As it happens, I have already installed pip3.

我从不了解使用pip安装python软件包和使用Homebrew安装之间的区别(如果有的话).你能跟我解释一下吗?另外，如果有公式，是否最好与Homebrew一起安装?如果确实最好使用Homebrew进行安装，那么您知道如何使用Homebrew为python 3安装pillow吗?

I've never understood the difference, if any, between installing a python package with pip and installing it with Homebrew. Can you explain it to me? Also, is it preferable to install with Homebrew if a formula is available? If installing with Homebrew is indeed preferable, do you know how to install pillow for python 3 with Homebrew?

第一个答案表明我并没有说清楚自己.如果我用pip install pillow而不是brew install pillow安装了枕头，那么系统上的安装会有所不同吗?为什么Homebrew会制定一个公式来执行pip已经执行的操作?是否会检查其他先决条件或其他内容?为什么用python2的枕头有一个公式，但据我所知python3的pillow却不尽人意?

The first answers indicate that I haven't made myself plain. If I had installed pillow with pip install pillow instead of brew install pillow would the installation on my system be any different? Why would Homebrew make a formula that does something that pip already does? Would it check for additional prerequisites or something? Why is there a formula for pillow with python2, but not as far as I can tell for pillow with python3?

推荐答案

好，OSX的软件包可能包括python的软件包.

well, packages for OSX may include packages for python.

pip是python世界的打包程序-您应该只能使用它安装python-things. homebrew是针对OSX的软件包管理器；它对您可以安装的软件没有任何限制-因为 python 是 software 的子集.

pip is a packager for the python world - you should only ever be able to install python-things with it; homebrew is a package manager targetted at OSX; it doesn't impose any restrictions onto what software you can install with it - since python is a subset of software.

使用brew安装东西会将它们安装到/usr/local/;

installing things with brew will install them into /usr/local/;

使用pip安装东西会从 Python包索引中获取包，并将其安装在python解释器将在其中找到它们的位置:在您的主目录中(例如~/.local/lib/python2.7/site-packages/)或在python解释器的某些全局搜索路径中(例如/usr/local/lib/python2.7/dist-packages/)

installing things with pip will fetch packages from the Python Package Index, and it will install them in a place where your python interpreter will find them: either into your home directory (e.g. ~/.local/lib/python2.7/site-packages/) or in some global search-path of your python interpreter (e.g. /usr/local/lib/python2.7/dist-packages/)

如果您已通过brew安装了python解释器，则很有可能可以直接使用通过brew安装的所有python软件包.

if you have installed the python interpreter via brew, then chances are high that any python-package installed via brew will be usable out of the box.

这篇关于"brew install"和"brew install"之间有区别吗?和"pip install"?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IT屋！