bug#25035: scribus: No module named _sysconfigdata_nd

[Ludovic Courtès]

Hi,

Just a note that this was fix a couple of weeks ago in commit
aa6ae8d3243ce80d6c427e243c4fa961c3bf8388.

Thanks,
Ludo’.

bug#25035: scribus: No module named _sysconfigdata_nd

[Adonay Felipe Nogueira]

This bug still exists if one installs Scribus through Guix in a foreign
system distribution. Even though I still have both LD_LIBRARY_PATH and
PYTHONPATH variables unset and I don't have Python installed through
Guix.

However, today I decided to test with:

$ guix environment --ad-hoc scribus python@2.7 bash -- bash

And after the environment was set, I did:

$ echo $PATH
/gnu/store/1cvfwh7qj6c2vgkbancql9phrm64dh9d-profile/bin:/home/adfeno/.guix-profile/bin:/home/adfeno/.guix-profile/sbin:/home/adfeno/.guix-profile/bin:/home/adfeno/.guix-profile/sbin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games
$ echo $PYTHONPATH
/gnu/store/1cvfwh7qj6c2vgkbancql9phrm64dh9d-profile/lib/python2.7/site-packages
$ echo $LD_LIBRARY_PATH

$ scribus

And then Scribus lauched (although with errors about missing images
which I'll ignore for this bug).

One way out of this bug would be to investigate/fix the hardcoded paths
that Scribus might have according to what ludo said
([[http://lists.gnu.org/archive/html/bug-guix/2016-11/msg00077.html]]).

Other possibility is to test moving the Python dependency from the
package's inputs to native-inputs or propagated-inputs. But this is just
an idea from a non-developer (me), so I don't know if this is really the
cause of the problem.

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bug#25035: scribus: No module named _sysconfigdata_nd

[Adonay Felipe Nogueira]

Hi all,

A reply just so that we can further investigate this issue later on.

The variable $LD_LIBRARY_PATH is indeed unset.

bug#25035: scribus: No module named _sysconfigdata_nd

[Ricardo Wurmus]

Adonay Felipe Nogueira  writes:

> Note: If I'm not mistaken, there was no advise to set $PYTHONPATH to
> anything by the documentation (at least not for dailly/normal use) or by
> Guix itself (during installation of Scribus).

I don’t have PYTHONPATH set and Scribus works for me (I’m using
GuixSD).  Also make sure that LD_LIBRARY_PATH is not set.

~~ Ricardo

bug#25035: scribus: No module named _sysconfigdata_nd

[Ludovic Courtès]

Adonay Felipe Nogueira  skribis:

> Note: Sorry friends, I pressed the wrong reply button (private reply). Now, 
> I'm
> replyng to the bugs mailing list.
>
> I'm running Guix on a foreign distribution, and $PYTHONPATH is
> unset. The foreign distribution in question is Trisquel 7 (which is
> based on the Ubuntu 14.04).

The interesting thing is that it opens the right libpython:

  
open("/gnu/store/7q9nn76r76hnxbfxyv6asishx58jc420-python-2.7.12/lib/libpython2.7.so.1.0",
 O_RDONLY|O_CLOEXEC) = 3

but then it does this:

--8<---cut here---start->8---
stat64("/home/adfeno/.guix-profile/bin/python", 0xbf868d1c) = -1 ENOENT (No 
such file or directory)
stat64("/usr/local/sbin/python", 0xbf868d1c) = -1 ENOENT (No such file or 
directory)
stat64("/usr/local/bin/python", 0xbf868d1c) = -1 ENOENT (No such file or 
directory)
stat64("/usr/sbin/python", 0xbf868d1c)  = -1 ENOENT (No such file or directory)
stat64("/usr/bin/python", {st_mode=S_IFREG|0755, st_size=3156448, ...}) = 0
readlink("/usr/bin/python", "python2.7", 4096) = 9
readlink("/usr/bin/python2.7", 0xbf868d1c, 4096) = -1 EINVAL (Invalid argument)
stat64("/usr/bin/Modules/Setup", 0xbf868d1c) = -1 ENOENT (No such file or 
directory)
stat64("/usr/bin/lib/python2.7/os.py", 0xbf868d1c) = -1 ENOENT (No such file or 
directory)
stat64("/usr/bin/lib/python2.7/os.pyc", 0xbf868d1c) = -1 ENOENT (No such file 
or directory)
stat64("/usr/lib/python2.7/os.py", {st_mode=S_IFREG|0644, st_size=25769, ...}) 
= 0
stat64("/usr/bin/pybuilddir.txt", 0xbf868d1c) = -1 ENOENT (No such file or 
directory)
stat64("/usr/bin/lib/python2.7/lib-dynload", 0xbf868d1c) = -1 ENOENT (No such 
file or directory)
stat64("/usr/lib/python2.7/lib-dynload", {st_mode=S_IFDIR|0755, st_size=12288, 
...}) = 0

[...]

stat64("/usr/lib/python27.zip", 0xbf867a28) = -1 ENOENT (No such file or 
directory)
stat64("/usr/lib", {st_mode=S_IFDIR|0755, st_size=36864, ...}) = 0
stat64("/usr/lib/python27.zip", 0xbf8689e0) = -1 ENOENT (No such file or 
directory)
stat64("/usr/lib/python2.7/", {st_mode=S_IFDIR|0755, st_size=28672, ...}) = 0
stat64("/usr/lib/python2.7/", {st_mode=S_IFDIR|0755, st_size=28672, ...}) = 0
stat64("/usr/lib/python2.7/site", 0xbf868b40) = -1 ENOENT (No such file or 
directory)
open("/usr/lib/python2.7/site.so", O_RDONLY|O_LARGEFILE) = -1 ENOENT (No such 
file or directory)
open("/usr/lib/python2.7/sitemodule.so", O_RDONLY|O_LARGEFILE) = -1 ENOENT (No 
such file or directory)
open("/usr/lib/python2.7/site.py", O_RDONLY|O_LARGEFILE) = 16
fstat64(16, {st_mode=S_IFREG|0644, st_size=20388, ...}) = 0
open("/usr/lib/python2.7/site.pyc", O_RDONLY|O_LARGEFILE) = 17
fstat64(17, {st_mode=S_IFREG|0644, st_size=19727, ...}) = 0
read(17, "\3\363\r\ncZ\210Uc\0\0\0\0\0\0\0\0\3\0\0\0@\0\0\0sp\1\0\0d\0"..., 
4096) = 4096
fstat64(17, {st_mode=S_IFREG|0644, st_size=19727, ...}) = 0
read(17, "\0(\0\0\0\0s\32\0\0\0/usr/lib/python2.7/si"..., 12288) = 12288
read(17, "\0\0aliasmbcs\333\1\0\0s\24\0\0\0\0\4\17\1\30\1\20\1\17\1\3\1"..., 
4096) = 3343
read(17, "", 4096)  = 0
mmap2(NULL, 262144, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 
0xaf304000
close(17)   = 0
stat64("/usr/lib/python2.7/os", 0xbf868750) = -1 ENOENT (No such file or 
directory)
open("/usr/lib/python2.7/os.so", O_RDONLY|O_LARGEFILE) = -1 ENOENT (No such 
file or directory)
open("/usr/lib/python2.7/osmodule.so", O_RDONLY|O_LARGEFILE) = -1 ENOENT (No 
such file or directory)
open("/usr/lib/python2.7/os.py", O_RDONLY|O_LARGEFILE) = 17
--8<---cut here---end--->8---

… and from there, chaos ensues.

I’m not sure where those /usr/lib file names come from though.

Note that Scribus hard-codes a whole bunch of program file names (not
that of ‘python’, though), which may lead to problems down the path, at
least on GuixSD:

--8<---cut here---start->8---
$ find -name \*.cpp |xargs grep --color /usr/ 
./scribus/ui/prefs_paths.cpp:   profileDirLineEdit->setToolTip( "" + tr( 
"Default ICC profiles directory. This cannot be changed with a document open. 
By default, Scribus will look in the System Directories under Mac OSX and 
Windows. On Linux and Unix, Scribus will search $home/.color/icc, 
$home/.local/share/color/icc, /usr/share/color/icc and 
/usr/local/share/color/icc" ) + "" );
./scribus/ui/prefs_externaltools.cpp:   
<<"/usr/local/texlive/2009/bin/universal-darwin/pdflatex"
./scribus/ui/prefs_externaltools.cpp:   
<<"/usr/local/texlive/2008/bin/universal-darwin/pdflatex";
./scribus/ui/prefs_externaltools.cpp:   pdflatexPaths   
<<"/usr/local/bin/pdflatex"
./scribus/ui/prefs_externaltools.cpp:   
<<"/usr/bin/pdflatex";
./scribus/scpaths.cpp:  QString 

bug#25035: scribus: No module named _sysconfigdata_nd

[Adonay Felipe Nogueira]

Note: Sorry friends, I pressed the wrong reply button (private reply). Now, I'm
replyng to the bugs mailing list.

I'm running Guix on a foreign distribution, and $PYTHONPATH is
unset. The foreign distribution in question is Trisquel 7 (which is
based on the Ubuntu 14.04).

I'll read some documentation on which part of my Guix installation I
should set $PYTHONPATH to. I'll reply back when done experimenting.

Note: If I'm not mistaken, there was no advise to set $PYTHONPATH to
anything by the documentation (at least not for dailly/normal use) or by
Guix itself (during installation of Scribus).

bug#25035: scribus: No module named _sysconfigdata_nd

[Ricardo Wurmus]

Adonay Felipe Nogueira  writes:

> # Steps to reproduce
>
> Simply try running Scribus. It closes immediatelly.

I cannot reproduce this.  I just upgraded Scribus; I’m using
/gnu/store/5h44li2ansg4mb5kqck44wdzkka3isih-scribus-1.5.2/bin/scribus

> # Notes
>
> * I have attached the raw output of `strace scribus`.
> * It seems that, from the strace, one sees that something (Scribus?)
>   attempts to use things from the host's root ("/"), not from the
>   derivative's root ("$out/"), although, if comparing the existance of
>   some files between the two path trees, some of them don't exist in
>   the derivative's path tree (e.g.: No "$out/lib/python2.7/site.py", or
>   no "$profile/lib/python2.7/site.py", in the case of the current user's
>   ".guix-profile"  directory).

Are you running Scribus on GuixSD or on a foreign distro?  The strace
shows that your Scribus opens /usr/lib/python2.7/sysconfig.py, which
doesn’t exist on GuixSD.  Mixing Python from Guix with a system Python
installation is bound to lead to problems.

What is your PYTHONPATH variable set to?

-- 
Ricardo

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