On Sunday 13 October 2019 16:22:33 Chris Angelico wrote: > On Mon, Oct 14, 2019 at 6:38 AM Gene Heskett <ghesk...@shentel.net> wrote: > > I'm not a python expert by a long ways. > > > > I have built the linuxcnc-master, which is the development branch of > > linuxcnc, a machine control program to run most metal carving > > machines. Lathes, milling machines, anything you can motorize, > > LinuxCNC can run. > > > > This requires a preempt-rt kernel which I've managed to build and > > install, all on a pi-4b running raspbian buster, the armfh-v7l > > version of debian 10.1. > > > > But linuxcnc is quite elderly code, some of it going back to before > > there was a linux, so despite being actively developed right now for > > x86 type hardware but has quite a list of missing dependencies I > > cannot satisfy from the raspbian repos. > > > > They are: > > > > The following packages have unmet dependencies: > > linuxcnc-uspace : Depends: python2.7-glade2 but it is not > > installable or > > > > Can anyone supply a list of python3 packages that will cover the > > functions contained in the above list?, and I will attempt to edit > > the linuxcnc srcs to use the more modern code base? > > So if I understand you correctly, you're not worried about actually > supplying these apt packages, but you want equivalents so you can port > the code itself to Py3?
I think thats the obvious path forward. Once ported, we don't have to worry about that legacy stuff for two or 3 generations of linux. I have it building on raspbian buster-10.1 for a rpi4b right now in "uspace" mode, but missing stuff has cost us a couple of the pretty gui-faces we use with it, and I'd like to find a way around that if I could. > My recommendation would be to start with "sudo apt build-dep > linuxcnc-uspace" and see if it can get any, but otherwise, just > replace "python-" with "python3-" and see if that works. You may need > to dig up dev packages of them though. The 2 packages that are missing right now are python-gtksourceview2, and python-vte. Do they have python3 equ's? Finding python3 replacements for those 2 would take some pressure off its forward march. as far as build dep detection, dpkg-checkbuilddeps is as dumb as a rock. I've had to add at least ten packages now to get it to build, that were never detected by dpkg-checkbuilddeps. And its major stuff, like inkscape and imagemagick. checkbuilddeps is ok before a 1st build, finding 50 or so things it needed, but for major stuff, a waste of time after the first session. > Another option may be to just use pip to install your dependencies. > That might work out easier. There seems to be an underground effort to throw pip and pip3 under the bus of late. I'm wonder why? Thanks ChrisA. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis Genes Web page <http://geneslinuxbox.net:6309/gene> -- https://mail.python.org/mailman/listinfo/python-list
