On Mon, 05 Dec 2016 21:42:52 -0600, Tim Chase wrote: > On 2016-12-05 18:26, Wildman via Python-list wrote: >> On Mon, 05 Dec 2016 16:08:57 -0600, Tim Chase wrote: >> >> > On 2016-12-05 14:58, Wildman via Python-list wrote: >> >> I there a way to detect what the Linux runlevel is from >> >> within a Python program? I would like to be able to do >> >> it without the use of an external program such as 'who' >> >> or 'runlevel'. >> > >> > You can use something like >> > >> > https://gist.github.com/likexian/f9da722585036d372dca >> > >> > to parse the /var/run/utmp contents. Based on some source-code >> > scrounging, it looks like you want the first field to be "1" for >> > the "runlevel" account. To extract the actual runlevel, you can >> > take the PID value from the second column ("53" in my example >> > here) and take it's integer value mod 256 (AKA "& 0xff") to get >> > the character value. So chr(int("53") & 0xff) returns "5" in my >> > case, which is my runlevel. >> > >> > Additional links I found helpful while searching: >> > >> > https://casper.berkeley.edu/svn/trunk/roach/sw/busybox-1.10.1/miscutils/runlevel.c >> > https://github.com/garabik/python-utmp >> >> That is exactly the kind of thing I was looking for. Thank you. >> Now all I have to do is get it to work with Python3. > > This works based on my poking at it in both Py2 and Py3:
That works perfectly. I owe you a big thanks. That was a lot of work and time on your part. I really appreciate it. -- <Wildman> GNU/Linux user #557453 The cow died so I don't need your bull! -- https://mail.python.org/mailman/listinfo/python-list
