KDE custom menu action on directories with whitespaces in the name

I created a script that takes different directories paths to merge the files inside them into one directory. I would exec this scrict by custom Kde-Dolphin action menu, so I created this .desktop file:

[Desktop Entry]
Type=Service
X-KDE-ServiceTypes=KonqPopupMenu/Plugin
MimeType=inode/directory;
Actions=mergeDir
X-KDE-AuthorizeAction=shell_access

[Desktop Action mergeDir]
Name=Merge this directories
Exec=konsole --noclose -e bash -c '/sc/dirs_merge.py -s %F'
Icon=folder-red

Unfurtuntely the %F doesn't consider the escape character for white spaces, so there is an issue when I use this action with directory with withe spaces in the name, because it's not possibile to discriminate a whitespace in the dir-name between white space as directories separator:

e.g: /transit/mergetest/Test white space 2 /transit/mergetest/Test whitespace 1

Someone knows a solution to this issue?

Thank you.

The %F placeholder should handle filenames containing spaces just fine - as noted in the freedesktop documentation for The Exec key

%F A list of files. Use for apps that can open several local files at once. Each file is passed as a separate argument to the executable program.

So provided your python script knows how to properly handle multiple arguments, you shouldn't need to involve a bash shell at all - just pass the %F argument list to your python script directly:

Exec=konsole --noclose -e /sc/dirs_merge.py -s %F

If you do really need a bash shell, then pass the arguments as positional parameters and remember to quote the expansion of $@ to prevent word-splitting by the shell:

Exec=konsole --noclose -e bash -c '/sc/dirs_merge.py -s "$@"' bash %F

(the second bash is just to fill the shell's $0 parameter - you can substitute any string there).