Bug#875538: jupyter-nbextension-jupyter-js-widgets: fails to configure: json.decoder.JSONDecodeError

2017-09-13 Thread Ximin Luo 
Control: tags -1 + moreinfo unreproducible
Control: severity -1 important

Hi Norbert,

Could you tell me the output of this:

$ for file in /etc/jupyter/nbconfig/*.json; do if [ -f "$file" ] && [ -r 
"$file" ]; then echo "-- $file"; cat "$file"; echo; fi; done

If any of these files are empty, please could you run, as root:

$ for i in /etc/jupyter/nbconfig/*.json; do if [ -f "$i" -a '!' -s "$i" ]; then 
rm -f "$i"; fi; done
$ dpkg-reconfigure jupyter-nbextension-jupyter-js-widgets

and then tell me if it fixes your problem?

X

On Tue, 12 Sep 2017 09:56:42 +0900 Norbert Preining  wrote:
> Package: jupyter-nbextension-jupyter-js-widgets
> Version: 6.0.0-2
> Severity: serious
> 
> Dear maintainer, 
> 
> the package consistently fails to configure with the following error:
> 
> Setting up jupyter-nbextension-jupyter-js-widgets (6.0.0-2) ...
> /usr/lib/python3.5/runpy.py:125: RuntimeWarning: 'notebook.nbextensions' 
> found in sys.modules after import of package 'notebook', but prior to 
> execution of 'notebook.nbextensions'; this may result in unpredictable 
> behaviour
>   warn(RuntimeWarning(msg))
> Enabling notebook extension jupyter-js-widgets/extension...
> Traceback (most recent call last):
>   File "/usr/lib/python3.5/runpy.py", line 193, in _run_module_as_main
> "__main__", mod_spec)
>   File "/usr/lib/python3.5/runpy.py", line 85, in _run_code
> exec(code, run_globals)
>   File "/usr/lib/python3/dist-packages/notebook/nbextensions.py", line 1176, 
> in 
> main()
>   File "/usr/lib/python3/dist-packages/jupyter_core/application.py", line 
> 267, in launch_instance
> return super(JupyterApp, cls).launch_instance(argv=argv, **kwargs)
>   File "/usr/lib/python3/dist-packages/traitlets/config/application.py", line 
> 658, in launch_instance
> app.start()
>   File "/usr/lib/python3/dist-packages/notebook/nbextensions.py", line 961, 
> in start
> super(NBExtensionApp, self).start()
>   File "/usr/lib/python3/dist-packages/jupyter_core/application.py", line 
> 256, in start
> self.subapp.start()
>   File "/usr/lib/python3/dist-packages/notebook/nbextensions.py", line 871, 
> in start
> self.toggle_nbextension(self.extra_args[0])
>   File "/usr/lib/python3/dist-packages/notebook/nbextensions.py", line 861, 
> in toggle_nbextension
> logger=self.log)
>   File "/usr/lib/python3/dist-packages/notebook/nbextensions.py", line 407, 
> in enable_nbextension
> logger=logger)
>   File "/usr/lib/python3/dist-packages/notebook/nbextensions.py", line 345, 
> in _set_nbextension_state
> cm.update(section, {"load_extensions": {require: state}})
>   File "/usr/lib/python3/dist-packages/traitlets/config/manager.py", line 85, 
> in update
> data = self.get(section_name)
>   File "/usr/lib/python3/dist-packages/traitlets/config/manager.py", line 63, 
> in get
> return json.load(f)
>   File "/usr/lib/python3.5/json/__init__.py", line 268, in load
> parse_constant=parse_constant, object_pairs_hook=object_pairs_hook, **kw)
>   File "/usr/lib/python3.5/json/__init__.py", line 319, in loads
> return _default_decoder.decode(s)
>   File "/usr/lib/python3.5/json/decoder.py", line 339, in decode
> obj, end = self.raw_decode(s, idx=_w(s, 0).end())
>   File "/usr/lib/python3.5/json/decoder.py", line 357, in raw_decode
> raise JSONDecodeError("Expecting value", s, err.value) from None
> json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)
> dpkg: error processing package jupyter-nbextension-jupyter-js-widgets 
> (--configure):
>  subprocess installed post-installation script returned error exit status 1
> 
> 
> Thanks
> 
> Norbert
> 
> -- System Information:
> Debian Release: buster/sid
>   APT prefers unstable
>   APT policy: (500, 'unstable'), (200, 'experimental')

-- 
GPG: ed25519/56034877E1F87C35
GPG: rsa4096/1318EFAC5FBBDBCE
https://github.com/infinity0/pubkeys.git

Bug#875538: jupyter-nbextension-jupyter-js-widgets: fails to configure: json.decoder.JSONDecodeError

2017-09-11 Thread Norbert Preining 
Package: jupyter-nbextension-jupyter-js-widgets
Version: 6.0.0-2
Severity: serious

Dear maintainer, 

the package consistently fails to configure with the following error:

Setting up jupyter-nbextension-jupyter-js-widgets (6.0.0-2) ...
/usr/lib/python3.5/runpy.py:125: RuntimeWarning: 'notebook.nbextensions' found 
in sys.modules after import of package 'notebook', but prior to execution of 
'notebook.nbextensions'; this may result in unpredictable behaviour
  warn(RuntimeWarning(msg))
Enabling notebook extension jupyter-js-widgets/extension...
Traceback (most recent call last):
  File "/usr/lib/python3.5/runpy.py", line 193, in _run_module_as_main
"__main__", mod_spec)
  File "/usr/lib/python3.5/runpy.py", line 85, in _run_code
exec(code, run_globals)
  File "/usr/lib/python3/dist-packages/notebook/nbextensions.py", line 1176, in 

main()
  File "/usr/lib/python3/dist-packages/jupyter_core/application.py", line 267, 
in launch_instance
return super(JupyterApp, cls).launch_instance(argv=argv, **kwargs)
  File "/usr/lib/python3/dist-packages/traitlets/config/application.py", line 
658, in launch_instance
app.start()
  File "/usr/lib/python3/dist-packages/notebook/nbextensions.py", line 961, in 
start
super(NBExtensionApp, self).start()
  File "/usr/lib/python3/dist-packages/jupyter_core/application.py", line 256, 
in start
self.subapp.start()
  File "/usr/lib/python3/dist-packages/notebook/nbextensions.py", line 871, in 
start
self.toggle_nbextension(self.extra_args[0])
  File "/usr/lib/python3/dist-packages/notebook/nbextensions.py", line 861, in 
toggle_nbextension
logger=self.log)
  File "/usr/lib/python3/dist-packages/notebook/nbextensions.py", line 407, in 
enable_nbextension
logger=logger)
  File "/usr/lib/python3/dist-packages/notebook/nbextensions.py", line 345, in 
_set_nbextension_state
cm.update(section, {"load_extensions": {require: state}})
  File "/usr/lib/python3/dist-packages/traitlets/config/manager.py", line 85, 
in update
data = self.get(section_name)
  File "/usr/lib/python3/dist-packages/traitlets/config/manager.py", line 63, 
in get
return json.load(f)
  File "/usr/lib/python3.5/json/__init__.py", line 268, in load
parse_constant=parse_constant, object_pairs_hook=object_pairs_hook, **kw)
  File "/usr/lib/python3.5/json/__init__.py", line 319, in loads
return _default_decoder.decode(s)
  File "/usr/lib/python3.5/json/decoder.py", line 339, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "/usr/lib/python3.5/json/decoder.py", line 357, in raw_decode
raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)
dpkg: error processing package jupyter-nbextension-jupyter-js-widgets 
(--configure):
 subprocess installed post-installation script returned error exit status 1


Thanks

Norbert

-- System Information:
Debian Release: buster/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (200, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.12.0 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), 
LANGUAGE=en_US:en (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages jupyter-nbextension-jupyter-js-widgets depends on:
ii  python2.7.13-2
ii  python-notebook   4.2.3-4
ii  python3   3.5.3-3
ii  python3-notebook  4.2.3-4

jupyter-nbextension-jupyter-js-widgets recommends no packages.

Versions of packages jupyter-nbextension-jupyter-js-widgets suggests:
iu  python-ipywidgets   6.0.0-2
iu  python3-ipywidgets  6.0.0-2

-- no debconf information