nbconvert: ArchLinux Package Broken for 6.0: (Error when exporting to HTML: `TemplateNotFound: static/index.css`)

I am trying to export an empty notebook to HTML (jupyter nbconvert --to html empty.ipynb ), but it fails with TemplateNotFound: static/index.css (full error message below). I tried b7 and master, and the error is still there; a1 and earlier works fine.

(A caveat is that depending on which version I was on before upgrading, I seemed to get inconsistent results, e.g. being on a1 and then updating to b7 sometimes worked, but being on a6 and upgrading to b7 caused the error. So to reproduce, run pip install https://github.com/jupyter/nbconvert/archive/6.0.0a6.zip and then pip install https://github.com/jupyter/nbconvert/archive/6.0.0b7.zip. Sometimes it works when upgrading to master, sometimes not. Is there a template file generated that is cleared by some versions maybe?)

Error message

[NbConvertApp] Converting notebook empty.ipynb to html
Traceback (most recent call last):
  File "/home/joel/miniconda3/envs/mds/bin/jupyter-nbconvert", line 8, in <module>
    sys.exit(main())
  File "/home/joel/miniconda3/envs/mds/lib/python3.8/site-packages/jupyter_core/application.py", line 270, in launch_instance
    return super(JupyterApp, cls).launch_instance(argv=argv, **kwargs)
  File "/home/joel/miniconda3/envs/mds/lib/python3.8/site-packages/traitlets/config/application.py", line 838, in launch_instance
    app.start()
  File "/home/joel/miniconda3/envs/mds/lib/python3.8/site-packages/nbconvert/nbconvertapp.py", line 345, in start
    self.convert_notebooks()
  File "/home/joel/miniconda3/envs/mds/lib/python3.8/site-packages/nbconvert/nbconvertapp.py", line 519, in convert_notebooks
    self.convert_single_notebook(notebook_filename)
  File "/home/joel/miniconda3/envs/mds/lib/python3.8/site-packages/nbconvert/nbconvertapp.py", line 484, in convert_single_notebook
    output, resources = self.export_single_notebook(notebook_filename, resources, input_buffer=input_buffer)
  File "/home/joel/miniconda3/envs/mds/lib/python3.8/site-packages/nbconvert/nbconvertapp.py", line 413, in export_single_notebook
    output, resources = self.exporter.from_filename(notebook_filename, resources=resources)
  File "/home/joel/miniconda3/envs/mds/lib/python3.8/site-packages/nbconvert/exporters/exporter.py", line 182, in from_filename
    return self.from_file(f, resources=resources, **kw)
  File "/home/joel/miniconda3/envs/mds/lib/python3.8/site-packages/nbconvert/exporters/exporter.py", line 200, in from_file
    return self.from_notebook_node(nbformat.read(file_stream, as_version=4), resources=resources, **kw)
  File "/home/joel/miniconda3/envs/mds/lib/python3.8/site-packages/nbconvert/exporters/html.py", line 122, in from_notebook_node
    return super().from_notebook_node(nb, resources, **kw)
  File "/home/joel/miniconda3/envs/mds/lib/python3.8/site-packages/nbconvert/exporters/templateexporter.py", line 377, in from_notebook_node
    output = self.template.render(nb=nb_copy, resources=resources)
  File "/home/joel/.local/lib/python3.8/site-packages/jinja2/environment.py", line 1090, in render
    self.environment.handle_exception()
  File "/home/joel/.local/lib/python3.8/site-packages/jinja2/environment.py", line 832, in handle_exception
    reraise(*rewrite_traceback_stack(source=source))
  File "/home/joel/.local/lib/python3.8/site-packages/jinja2/_compat.py", line 28, in reraise
    raise value.with_traceback(tb)
  File "/home/joel/miniconda3/envs/mds/share/jupyter/nbconvert/templates/lab/index.html.j2", line 3, in top-level template code
    {% from 'jupyter_widgets.html.j2' import jupyter_widgets %}
  File "/home/joel/miniconda3/envs/mds/share/jupyter/nbconvert/templates/lab/base.html.j2", line 169, in top-level template code
File “/home/joel/miniconda3/envs/mds/share/jupyter/nbconvert/templates/base/display_priority.j2”, line 1, in top-level template code
{%- extends ‘base/null.j2’ -%}
File “/home/joel/miniconda3/envs/mds/share/jupyter/nbconvert/templates/base/null.j2”, line 23, in top-level template code
#}
File “/home/joel/miniconda3/envs/mds/share/jupyter/nbconvert/templates/lab/index.html.j2”, line 6, in block “header”
<!DOCTYPE html>
File “/home/joel/miniconda3/envs/mds/share/jupyter/nbconvert/templates/lab/index.html.j2”, line 28, in block “html_head”
{% endblock extra_css %}
File “/home/joel/miniconda3/envs/mds/share/jupyter/nbconvert/templates/lab/index.html.j2”, line 29, in block “notebook_css”
File “/home/joel/miniconda3/envs/mds/lib/python3.8/site-packages/nbconvert/exporters/html.py”, line 127, in resources_include_css
code = “”“<style type="text/css">\n%s</style>”“” % (env.loader.get_source(env, name)[0])
File “/home/joel/.local/lib/python3.8/site-packages/jinja2/loaders.py”, line 488, in get_source
raise TemplateNotFound(template)
jinja2.exceptions.TemplateNotFound: static/index.css

Tested on Linux and Windows

# Linux jupyter --version
jupyter core     : 4.6.3
jupyter-notebook : 6.1.3
qtconsole        : not installed
ipython          : 7.18.1
ipykernel        : 5.3.4
jupyter client   : 6.1.2
jupyter lab      : 2.2.6
nbconvert        : 6.0.0b7
ipywidgets       : not installed
nbformat         : 5.0.5
traitlets        : 5.0.0

# Windows jupyter --version
$ jupyter --version
jupyter core     : 4.6.3
jupyter-notebook : 6.1.3
qtconsole        : not installed
ipython          : 7.17.0
ipykernel        : 5.3.4
jupyter client   : 6.1.6
jupyter lab      : 2.2.5
nbconvert        : 6.0.0b7
ipywidgets       : not installed
nbformat         : 5.0.7
traitlets        : 4.3.3

About this issue

Original URL
State: closed
Created 4 years ago
Comments: 29 (19 by maintainers)

Most upvoted comments

@Ghabry I opened an issue there a few days ago and just pasted the lasted comment from above also https://bugs.archlinux.org/task/69537

joelostblom on Feb 8, 2021

I think the pacman package is broken, which would explain the reports on Arch Linux.

SylvainCorlay on Feb 4, 2021

Ok yeah that reproduces on my machine – I typically don’t develop in conda and it doesn’t reproduce in a pure venv setting.

MSeal on Sep 8, 2020

Just observed the same issue in Arch. Does anyone know about any workarounds?

Hey, for doing this I just did a similar script as the one suggested by @atsuoishimoto. Just create a file called notebook-to-html.py and paste this

import nbformat
from nbconvert.exporters import HTMLExporter
import sys 
from traitlets.config import Config

# Argument parsing
if len(sys.argv) < 3:
    print("An input file and a output file is needed.")
    sys.exit(1)
elif len(sys.argv) > 3:
    print("Warning: Only the first two arguments will be used")

# Open notebook
json = nbformat.read(open(sys.argv[1]), nbformat.current_nbformat)

# Config for html generation
c = Config({"TemplateExporter": {"template_name": "classic", "template_file":
                                 "base.html.j2"}})

# Generate HTML for notebook
html, _ = HTMLExporter(c).from_notebook_node(json)
with open(sys.argv[2], "w") as html_file:
    html_file.write(html)

Then just do the following in a terminal python3 notebook-to-html.py /path/to/notebook.ipynb /path/to/html-file.html and that’s it. I would just suggest doing a alias while this is being fixed; something like:

alias nb2html='python3 /path/to/notebook-to-html.py'

juanscr on Mar 26, 2021

Same issue on Manjaro

endeavour on Mar 8, 2021

FYI, I got same error with my regacy utitiliy like this.

import nbformat
from nbconvert.exporters import HTMLExporter
from traitlets.config import Config

json = nbformat.read(open("Untitled.ipynb"), nbformat.current_nbformat)

c = Config( { "TemplateExporter": {"template_file": "basic.tpl"}})
html, _ = HTMLExporter(c).from_notebook_node(json)
print(html)

This code works with nbconvert 5.6.1, but raises same error with 6.0.6.

Changing Config to

c = Config({"TemplateExporter": {"template_name": "classic", "template_file": "base.html.j2"}})

fixes problem in my case.

atsuoishimoto on Sep 24, 2020