我当前的桌面环境是什么？

Question

我想知道我的电脑桌面环境是什么，怎么用Python来查呢？我希望结果能显示成 gnome 或 KDE 之类的。

Answer 1

有时候，人们会在电脑上使用不同的桌面环境。为了让你的应用程序不受桌面环境的限制，可以使用 xdg-utils。这意味着你可以用 xdg-open 来打开文件或网址，用 xdg-user-dir DOCUMENTS 来找到文档文件夹，用 xdg-email 来发送电子邮件，等等。

Answer 2

我在我的一个项目中使用了这个：

    def get_desktop_environment(self):
        #From http://stackoverflow.com/questions/2035657/what-is-my-current-desktop-environment
        # and http://ubuntuforums.org/showthread.php?t=652320
        # and http://ubuntuforums.org/showthread.php?t=652320
        # and http://ubuntuforums.org/showthread.php?t=1139057
        if sys.platform in ["win32", "cygwin"]:
            return "windows"
        elif sys.platform == "darwin":
            return "mac"
        else: #Most likely either a POSIX system or something not much common
            desktop_session = os.environ.get("DESKTOP_SESSION")
            if desktop_session is not None: #easier to match if we doesn't have  to deal with caracter cases
                desktop_session = desktop_session.lower()
                if desktop_session in ["gnome","unity", "cinnamon", "mate", "xfce4", "lxde", "fluxbox", 
                                       "blackbox", "openbox", "icewm", "jwm", "afterstep","trinity", "kde"]:
                    return desktop_session
                ## Special cases ##
                # Canonical sets $DESKTOP_SESSION to Lubuntu rather than LXDE if using LXDE.
                # There is no guarantee that they will not do the same with the other desktop environments.
                elif "xfce" in desktop_session or desktop_session.startswith("xubuntu"):
                    return "xfce4"
                elif desktop_session.startswith('ubuntustudio'):
                    return 'kde'
                elif desktop_session.startswith('ubuntu'):
                    return 'gnome'     
                elif desktop_session.startswith("lubuntu"):
                    return "lxde" 
                elif desktop_session.startswith("kubuntu"): 
                    return "kde" 
                elif desktop_session.startswith("razor"): # e.g. razorkwin
                    return "razor-qt"
                elif desktop_session.startswith("wmaker"): # e.g. wmaker-common
                    return "windowmaker"
            if os.environ.get('KDE_FULL_SESSION') == 'true':
                return "kde"
            elif os.environ.get('GNOME_DESKTOP_SESSION_ID'):
                if not "deprecated" in os.environ.get('GNOME_DESKTOP_SESSION_ID'):
                    return "gnome2"
            #From http://ubuntuforums.org/showthread.php?t=652320
            elif self.is_running("xfce-mcs-manage"):
                return "xfce4"
            elif self.is_running("ksmserver"):
                return "kde"
        return "unknown"

    def is_running(self, process):
        #From http://www.bloggerpolis.com/2011/05/how-to-check-if-a-process-is-running-using-python/
        # and http://richarddingwall.name/2009/06/18/windows-equivalents-of-ps-and-kill-commands/
        try: #Linux/Unix
            s = subprocess.Popen(["ps", "axw"],stdout=subprocess.PIPE)
        except: #Windows
            s = subprocess.Popen(["tasklist", "/v"],stdout=subprocess.PIPE)
        for x in s.stdout:
            if re.search(process, x):
                return True
        return False

Answer 3

在Ubuntu 9.10中测试过：

>>> import os
>>> os.environ.get('DESKTOP_SESSION')
'gnome'

补充说明2：正如评论所说，随着新版本的GNOME出现，这个方法变得越来越不可靠。我现在也在使用Ubuntu 18.04，它返回的是'ubuntu'，而不是之前的'gnome'。

补充说明1：正如下面的评论提到的，这种方法在某些操作系统上是行不通的。其他两个答案提供了替代方案。

我当前的桌面环境是什么？

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