Kill all processes that are using qt5

Question

I would like to run a python script with conflicts with the use of a certain graphical framework:

ImportError: Cannot load backend 'TkAgg' which requires the 'tk' interactive framework, as 'qt5' is currently running

Therefore I would like to ask if there is a way to determine all processes that are currently using qt5 and depending on the result kill those process, so that I can run my script. (The script worked before the qt5 issue just fine - no idea by which application this new issue was caused).

Answer 1

This finds the first 5 pids on my machine using libnss_files-2.23.so.

$ for p in /proc/[0-9]*
    do test -d $p/map_files && 
    sudo ls -l $p/map_files | 
        awk -vpid=$(basename  $p) -vname=libnss_files-2.23.so -F '->' \
            '$2 ~ name {print pid; exit}'
  done |
  head -5 
1114
1155
12066
12148
12156

These days on Linux, find all pids with property X is frequently solved with procfs.