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From:	"Claudio Fabri (clafi AT gmx DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
To:	geda-user AT delorie DOT com
Subject:	Re: [geda-user] PCB can no longer imports schematic
Date:	Sun, 13 Jun 2021 18:10:34 +0200
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> Sent: Sunday, June 13, 2021 at 1:25 PM
> From: "Roland Lutz" <rlutz AT hedmen DOT org>
> To: "Claudio Fabri (clafi AT gmx DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
> Subject: Re: [geda-user] PCB can no longer imports schematic
>
> On Fri, 11 Jun 2021, Claudio Fabri (clafi AT gmx DOT com) [via
> geda-user AT delorie DOT com] wrote:
> > I cleaned the cache and restarted gnetlist --list-backends, same (kind
> > of) error.
>
> That's actually a quite different error.
>
> Running gnetlist on a fresh install (or after removing the Guile cache)
> has sometimes led to problems; Guile appears to compile files differently
> depending on the execution environment.  (*sigh*)  I tend to run gschem
> first so Guile compilation happens correctly.  That said, this doesn't
> appear to be the problem here.
>
> > ERROR: Throw to key `python-exception' with args
> > `("exceptions.UnicodeDecodeError" "'ascii' codec can't decode byte 0xc3
> > in position 59: ordinal not in range(128)")'.
>
> > Failed to load RC file [gafrc]
>
> I have tried different things to reproduce this error, and while I did
> find several different bugs (I really should do mean things to gEDA/gaf
> more often), I couldn't reproduce your problem.
>
> The most probable cause is a non-ASCII character in a place where gEDA/gaf
> doesn't expect it.  If you have any special characters in your pathname,
> "gafrc" file, or similar, maybe you could test if the problem goes away
> (or the error message changes) if you remove this character?  Knowing
> where the error comes from would be very helpful in solving the issue.
>
> Roland


OMG! You're my saviour (at least so far ;-)

I indeed have an accented character in the current directory name. I ran gnetlist --list-backends from another directory and I now get a list of backends. So far so good. I'm still not quite there yet though as here's the error I get when I import a schematics from application pcb itself:

ERROR: Could not find backend `pcbfwd' in load path.

But at least that's not some nonsensical message. I looked up on my system and there's a file named gnet_pcbfwd.py in a directory named /usr/lib/xorn/backends, owning package: geda-gaf-1.10.0-1... what?

Here are the installed backends that contain "pcb", lower- and upper-case in their name:

~# gnetlist --list-backends | grep -i pcb
  [PG]  PCB
  [PG]  gsch2pcb
  [PG]  liquidpcb
  [P ]  pcbfwd
  [PG]  pcbpins

This works: gnetlist -g PCB -o oscillator.net oscillator.sch
This doesn't: gnetlist -g pcbfwd -o oscillator.net oscillator.sch

I've also inspected the list of files for package pcb (I have version 4.2.2) and there's also a file named gnet-pcbfwd.scm in /usr/share/gEDA/scheme/.

I feel we're close but I need a hint at this point.

Claudio

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