如何使用Python检测Mac OS版本? [英] How to detect Mac OS version using Python?

问题描述

假定我的应用程序正在Mac OS X系统上运行.但是，我需要做的是弄清楚它运行在哪个版本的Mac OS(或Darwin)上，最好是一个数字.例如，

My application is assumed to be running on a Mac OS X system. However, what I need to do is figure out what version of Mac OS (or Darwin) it is running on, preferably as a number. For instance,

• "10.4.11"将返回10.4或8
• "10.5.4"将返回10.5或9
• "10.6"将返回10.6或10

我发现您可以执行此操作，这在我的系统上返回"8.11.0":

I found out that you could do this, which returns "8.11.0" on my system:

import os
os.system("uname -r")

是否有更清洁的方法来执行此操作，或者至少有一种从结果中提取第一个数字的方法?谢谢！

Is there a cleaner way to do this, or at least a way to pull the first number from the result? Thanks!

推荐答案

>>> import platform
>>> platform.mac_ver()
('10.5.8', ('', '', ''), 'i386')

如您所见，元组的第一项 返回的是字符串，而不是数字(很难将'10 .5.8'转换为数字！-)，但是将10.x.y字符串转换为所需的数字类型非常容易.例如，

As you see, the first item of the tuple mac_ver returns is a string, not a number (hard to make '10.5.8' into a number!-), but it's pretty easy to manipulate the 10.x.y string into the kind of numbers you want. For example,

>>> v, _, _ = platform.mac_ver()
>>> v = float('.'.join(v.split('.')[:2]))
>>> print v
10.5

如果您更喜欢Darwin内核版本而不是MacOSX版本，那也很容易访问-使用格式相似的字符串，它是platform.uname()返回的元组的第三项.

If you prefer the Darwin kernel version rather than the MacOSX version, that's also easy to access -- use the similarly-formatted string that's the third item of the tuple returned by platform.uname().

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