July 2017
Intermediate to advanced
398 pages
11h 54m
Chinese
Content preview from Python数据处理
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高级
Python
设置
｜
353
无论输出是什么，你会看到变量的信息（
/usr/local/bin:/usr/local/sbin
）添加到了我们
的
.bashrc
文件中，突出了返回值。
如果你没有在变量中看到新的值，确保你打开了一个新的窗口。设置的改变不会加载到当
前的终端窗口，除非你明确地应用文件到当前的终端［查看
bash source
（
http://ss64.com/
bash/source.html
）命令获取更多的信息］。
D.4
第
4
步
：
安装
Python 2.7
为了在
Mac
上安装
Python 2.7
，运行下面的命令：
$ brew install python
如果你想要跟进
Python 3+
，你可以安装它。在
Mac
上安装
Python 3+
，运行：
$ brew install python3
对于
Windows
，你需要跟随第
1
章中的指引，正确地通过
Windows
安装程序安装。对于
Linux
，很可能你已经安装了
Python
。在
Linux
中，通过安装一些
Python
开发者包（
http://
stackoverflow.com/questions/6230444/how-to-install-python-developer-package
）来安装一些额
外的工具是好的想法。
在完成所有的操作后，测试它是否工作正常。
在终端启动你的
Python
解释器：
$ python
然后，运行下面的代码：
import
sys
import
pprint
pprint.pprint(sys.path)
Mac
输出看起来类似这样： ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.