Python：系统平台不正确的结果

Question

我在ubuntu13.10下使用pythonshell。我的Linux内核版本是“3.11.0-13-generic”。那么为什么要用Python变量“系统平台“存储值”Linux2“而不是“Linux3”？在

Answer 1

因为sys.platform不是内核版本。它是编译时添加到python二进制文件或库中的字符串。在linux上它总是linux2，除了python3.3之后，它变成了linux。在

Possible values from sys.platform?

Answer 2

来自the docs：

Changed in version 2.7.3: Since lots of code check for sys.platform == 'linux2', and there is no essential change between Linux 2.x and 3.x, sys.platform is always set to 'linux2', even on Linux 3.x.

Answer 3

根据documentation：

sys.platform is always set to 'linux2', even on Linux 3.x. In Python 3.3 and later, the value will always be set to 'linux', so it is recommended to always use the startswith idiom presented above.