Yes I have tried. But the problem is not the tool , problem is to "how". As gparted also parted doesn't let you create new partition or split it if there is no other free space for partitioning in the system.
Using funtoo(gentoo like system) and messed up my /etc/portage (I guess)
when I am emerging something(media-gfx/darktable) , it shows me this message.
emerge: there are no ebuilds to satisfy "dev-lang/python:3.5".
(dependency required by...