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nbconflux converts Jupyter Notebooks to Atlassian Confluence pages

License: BSD 3-Clause "New" or "Revised" License

Makefile 0.15% Jupyter Notebook 77.86% Python 20.89% Smarty 1.10%

jupyter notebook confluence nbconvert team-platform

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nbconflux's Issues

Sanitize HTML to avoid 400 errors when posting disallowed attrs/tags

e.g., <img> is not a supported tag. Adding an image in a markdown cell causes a 400.
e.g. pandas added a stylesheet and style attributes between 0.19 and 0.21. Causes a 400
e.g. --- in markdown becomes <hr> but the storage format wants <hr />

Requires hooking into the md/html sanitization routines in nbconvert.

Override markdown2html for jinja use and pass use_xtml to IPythonRenderer https://github.com/jupyter/nbconvert/blob/a96bfddbb9e4a9441ab37b5fd9d6236a5ee13a5b/nbconvert/exporters/html.py#L69 ()
Add https://github.com/jupyter/nbconvert/blob/d9c66f54aff4380c3f8a3877421b7017139e7b64/nbconvert/preprocessors/sanitize.py as a preprocessor

Supporting ipywidgets?

Nice tool! Is there any chance to support ipywidgets output? Of course not the fully interactive interface, but maybe only the rendered result? That would be gorgeous!

Images in markdown cells do not show up

Hi,
Images included part of a markdown cell are not showing up in Confluence.
![alt text](images/someImage.png)
I modified the notebook to include images like this, but it's slightly clumsy as a new cell has to be inserted just for the image...

from IPython.display import Image
Image("images/someImage.png")

Win7/MingW64: Command prompt stuck at "Confluence username"

After running

nbconflux my_jupyter_nb.ipynb https://confluence_sample.org/page/viewpage.action?pageId=736763

.. the command prompt doesn't react to any input after request of "Confluence username:", I can't even abort using CTRL+C. Is this a known issue?

Just noticed: does this package only work with confluence hosted on atlassian.com?

I also tested this from a python-script with import: same problem - no response after "python convert.py"

Nbconvert exporter entrypoint

You can expose this package directly to nbconvert (so you could use jupyter nbconvert --to confluence your.ipynb) using entrypoints:

For example (from the docs):

setup(
    ...
    entry_points = {
        'nbconvert.exporters': [
            'simple = mymodule:SimpleExporter',
            'detail = mymodule:DetailExporter',
        ],
    }
)

Installation failed: Getting requirements to build wheel ... error

I've been trying to install nbconflux (on Windows) using the command pip install nbconflux and I always ran into the following error

Installing build dependencies ... done
  Getting requirements to build wheel ... error
  error: subprocess-exited-with-error

  × Getting requirements to build wheel did not run successfully.
  │ exit code: 1
  ╰─> [3 lines of output]
      error in nbconflux setup command: 'install_requires' must be a string or list of strings containing valid project/version requirement specifiers; Expected end or semicolon (after version specifier)
          nbconvert>=5.3requeststraitlets
                   ~~~~~~^
      [end of output]

  note: This error originates from a subprocess, and is likely not a problem with pip.
error: subprocess-exited-with-error

× Getting requirements to build wheel did not run successfully.
│ exit code: 1
╰─> See above for output.

note: This error originates from a subprocess, and is likely not a problem with pip.

I thought it might be because of the latest version, thus, I went back to install different versions of nbconflux (0.7.0, 0.6.1, 0.6.0, 0.5.1, 0.5.0) and all of them resulted in the same error.

On my virtual environment (Windows), I have nbconvert==7.11.0 already

Unknown URL Format errors

I was extremely excited to hear about nbconflux at the Jupyter DC Pop-up, and even though it isn't entirely working right with our authentication, which is not username password, I can at least give this much feedback.

When I use an URL from my personal space, it doesn't resolve the page id:

nbconflux notebooks/MissingTitle.ipynb 'https://this.is.not.real.gov/confluence/display/~davisda4/Test+Notebook

When I use an URL from a data science space, it doesn't resolve the page id:

nbconflux notebooks/MissingTitle.ipynb 'https://this.is.not.real.gov/confluence/display/WSO/Jupyter+Notebook+Page+-+Missing+Titles'

It only works if I edit the page, and copy the URL containing the pageid. So, you are relying a lot on the configuration of Confluence, which is fine starting out.

More soon, after I figure out how to step it through our authentication.

Remove Code Cells with CLI Argument

Is there a way to remove code cells simply with a command line argument?
I know the README specifies how to do this with notebook tags.

Excludes input, output, or entire cells based on notebook cell tags noinput, nooutput, or nocell

But what if I didn't want to have to worry about adding tags to my notebook cells, and instead just wanted to do it from the command line. For example the way you can use the --no-input and --no-prompt flags in nbconvert currently.

> jupyter nbconvert your_notebook.ipynb --to="html" --no-input --no-prompt

Authenticate to Confluence with oauth2

Loosely related to #19.

The QA version of my on-premise wiki has been updated to use OAuth2 supported by AWS Cognito which in turn is authenticating with SAML. I'm hoping no one at my organization plans to roll this out to production - but they do need to eventually move our confluence instance to the cloud.

I'm very far from needing a solution, but others may not be so lucky. I think something could be done with the python package requests-oauthlib.

CSS Macro not working

Hi, i am trying to use nbconflux, but i am not able to enable the CSS Macro, could you add some step by step to enable this feature, or add some link to this in the documentation, please? I am using confluence server here.

Find page by space and title

I have an idea to find the id of the page by space (key or title) and by page title. For a new page, the parent title could be given.

This would add a dependence (if I were to implement it) on jmespath. A search would have the following inputs:

space - interpreted as either space key or title
title - exact or approximate title of page

A method for an exact search:

def find_page(session, baseurl, **kwargs):
    cql_query_template = (
         'type=page'
         ' and (space="{space:s}" OR space.title~"{space:s}")'
         ' and title="{title:s}"')
    cql_query = cql_query_template.format(**kwargs)
    response = session.get(baseurl + '/search', params={'cql': cql_query})
    if not response.ok:
        raise Something()
    response_data = response.json()
    if response_data['size'] != 1:
        return None
    page_id = jmespath.search('results[0].content.id', response_data)
    page_link = baseurl + '/content/' + page_id
    return page_link

This could be generalized to support multiple "strategies", each a function taking the session, baseurl, and kwargs. This makes the search function more maintainable:

def cql_search_strategy(cql_query_template):
    def _strategy(session, baseurl, **kwargs):
        nonlocal cql_query_template
        cql_query = cql_query_template.format(**kwargs)
        response = session.get(baseurl + '/search', params={'cql': cql_query})
        # ....
    return _strategy

exact_title_strategy = cql_search_strategy('type=page and (space="{space:s}" OR space.title~"{space:s}") and title="{title:s}"')
title_contains_startegy = cql_search_strategy('type=page and (space="{space:s}" OR space.title~"{space:s}") and title~"{title:s}"')

Exclude cells by default

Hi,
Great tool! Would it be possible to have an option to exclude all cells by default and only include cells that I tag with a particular tag? Because in my use case, I don't want to include most of the details and export a simplified and clean report.
Let me know what you think.
Thanks!

Facing Hard time to include "Code" macro instead of style. My confluence server does not support styling. So for code blocks I need to use "Code Macro"

Problem with certain characters when using LaTeX in code cells

Some characters do not appear to be escaped correctly when using the Math class from IPython.display.

Example:
the output cell of

from IPython.display import Math

Math(r"""\begin{eqnarray}
\nabla \times \vec{\mathbf{B}} -\, \frac1c\, \frac{\partial\vec{\mathbf{E}}}{\partial t} & = & \frac{4\pi}{c}\vec{\mathbf{j}} \\
\nabla \cdot \vec{\mathbf{E}} & = & 4 \pi \rho \\
\nabla \times \vec{\mathbf{E}}\, +\, \frac1c\, \frac{\partial\vec{\mathbf{B}}}{\partial t} & = & \vec{\mathbf{0}} \\
\nabla \cdot \vec{\mathbf{B}} & = & 0 
\end{eqnarray}""")

gives error

400 Client Error: Bad Request for url...

But it works fine after taking out all the & characters.

Add documentation for using API Token

It is also possible to sign in with an Atlassian API Token for those scenarios where your organisation has employed multi-factor authentication as per: Use an API token

Sign into with your account. Under Security go to API Tokens then Create API Token. Give the token a meaningful label so that access can be revoked later. The token will be copied to the clipboard. Using Jupyter file editor create the token in the Jupyter environment and name the file confluence.token.

The api key can be used by setting the environment variables:

CONFLUENCE_PASSWORD=$(cat confluence.token)
CONFLUENCE_USERNAME=<me>
CONFLUENCE_URL=$(cat confluence.url)

Then calling nbconflux <notebook>.ipynb $CONFLUENCE_URL.

Using `CONFLUENCE_URL' was only to get around the paste to jupyter issue.

Remove code cells

Hi All,

Is there a way to hide/remove the code cells?
So that I only see the markdown cells and the output of the code cells?

The package is broken because of nbconvert 6.0.0a0

The package is broken due to nbconvert>=5.3 in the setup.py

Nbconflux doesn't work with nbconvert 6.0.0a0

matplotlib images not working in my environment

The image is properly attached to the page, but is not displaying correctly. After I run nbconflux to update the page, and then request its content with body.storage expanded, I see this in the body.storage.value:

<ac:image><ri:url ri:value="https://wiki.nlm.nih.gov/download/attachments/146342104/output_15_1.png?version=3" /></ac:image>

However, when I fix this manually in the page with an attachment link, I see:

<ac:image ac:height="250"><ri:attachment ri:filename="output_15_1.png" /></ac:image>

It looks like the two lines that need a change are:

confluence.tpl line 148
confluence.tpl line 156

I will attempt a fix and get back to you.

Possible related issues: #17

The 'exporter' trait of a ConfluencePreprocessor instance expected a ConfluenceExporter, not the NoneType None.

Hi,

I get the following error when using the notebook_to_page function.

---------------------------------------------------------------------------
KeyError                                  Traceback (most recent call last)
~/miniconda3/envs/jupyterlab/lib/python3.8/site-packages/traitlets/traitlets.py in get(self, obj, cls)
    534         try:
--> 535             value = obj._trait_values[self.name]
    536         except KeyError:

KeyError: 'exporter'

During handling of the above exception, another exception occurred:

TraitError                                Traceback (most recent call last)
<ipython-input-2-9a4929330a3c> in <module>
      8 url = "xxxxx"
      9 nb_path = "xxxxx"
---> 10 html, resources = nbconflux.notebook_to_page(nb_path, url, CONFLUENCE_USERNAME, CONFLUENCE_PASSWORD)
     11 

~/miniconda3/envs/jupyterlab/lib/python3.8/site-packages/nbconflux/api.py in notebook_to_page(notebook_file, confluence_url, username, password, generate_toc, attach_ipynb, enable_style, enable_mathjax, extra_labels)
     55 
     56     exporter = ConfluenceExporter(c)
---> 57     result = exporter.from_filename(notebook_file)
     58     print('Updated', confluence_url)
     59     return result

~/miniconda3/envs/jupyterlab/lib/python3.8/site-packages/nbconflux/exporter.py in from_filename(self, filename, *args, **kwargs)
    345         # so stash it here for later lookup
    346         self.notebook_filename = filename
--> 347         return super(ConfluenceExporter, self).from_filename(filename, *args, **kwargs)

~/miniconda3/envs/jupyterlab/lib/python3.8/site-packages/nbconvert/exporters/exporter.py in from_filename(self, filename, resources, **kw)
    179 
    180         with io.open(filename, encoding='utf-8') as f:
--> 181             return self.from_file(f, resources=resources, **kw)
    182 
    183 

~/miniconda3/envs/jupyterlab/lib/python3.8/site-packages/nbconvert/exporters/exporter.py in from_file(self, file_stream, resources, **kw)
    197 
    198         """
--> 199         return self.from_notebook_node(nbformat.read(file_stream, as_version=4), resources=resources, **kw)
    200 
    201 

~/miniconda3/envs/jupyterlab/lib/python3.8/site-packages/nbconflux/exporter.py in from_notebook_node(self, nb, resources, **kw)
    307 
    308         # Convert the notebook to Confluence storage format, which is XHTML-like
--> 309         html, resources = super(ConfluenceExporter, self).from_notebook_node(nb, resources, **kw)
    310 
    311         # Update the page with the new content

~/miniconda3/envs/jupyterlab/lib/python3.8/site-packages/nbconvert/exporters/html.py in from_notebook_node(self, nb, resources, **kw)
    127         highlight_code = self.filters.get('highlight_code', Highlight2HTML(pygments_lexer=lexer, parent=self))
    128         self.register_filter('highlight_code', highlight_code)
--> 129         return super().from_notebook_node(nb, resources, **kw)
    130 
    131     def _init_resources(self, resources):

~/miniconda3/envs/jupyterlab/lib/python3.8/site-packages/nbconvert/exporters/templateexporter.py in from_notebook_node(self, nb, resources, **kw)
    372             preprocessors and filters.
    373         """
--> 374         nb_copy, resources = super().from_notebook_node(nb, resources, **kw)
    375         resources.setdefault('raw_mimetypes', self.raw_mimetypes)
    376         resources['global_content_filter'] = {

~/miniconda3/envs/jupyterlab/lib/python3.8/site-packages/nbconvert/exporters/exporter.py in from_notebook_node(self, nb, resources, **kw)
    141 
    142         # Preprocess
--> 143         nb_copy, resources = self._preprocess(nb_copy, resources)
    144 
    145         return nb_copy, resources

~/miniconda3/envs/jupyterlab/lib/python3.8/site-packages/nbconvert/exporters/exporter.py in _preprocess(self, nb, resources)
    316         # to each preprocessor
    317         for preprocessor in self._preprocessors:
--> 318             nbc, resc = preprocessor(nbc, resc)
    319             try:
    320                 nbformat.validate(nbc, relax_add_props=True)

~/miniconda3/envs/jupyterlab/lib/python3.8/site-packages/nbconvert/preprocessors/base.py in __call__(self, nb, resources)
     45             self.log.debug("Applying preprocessor: %s",
     46                            self.__class__.__name__)
---> 47             return self.preprocess(nb, resources)
     48         else:
     49             return nb, resources

~/miniconda3/envs/jupyterlab/lib/python3.8/site-packages/nbconflux/preprocessor.py in preprocess(self, nb, resources)
     58         # names and versions.
     59         path = ('/rest/api/content/{page_id}/child/attachment?expand=version'
---> 60                 .format(page_id=self.exporter.page_id))
     61         resources['attachments'] = {}
     62         while path:

~/miniconda3/envs/jupyterlab/lib/python3.8/site-packages/traitlets/traitlets.py in __get__(self, obj, cls)
    573             return self
    574         else:
--> 575             return self.get(obj, cls)
    576 
    577     def set(self, obj, value):

~/miniconda3/envs/jupyterlab/lib/python3.8/site-packages/traitlets/traitlets.py in get(self, obj, cls)
    546                 )
    547             with obj.cross_validation_lock:
--> 548                 value = self._validate(obj, default)
    549             obj._trait_values[self.name] = value
    550             obj._notify_observers(Bunch(

~/miniconda3/envs/jupyterlab/lib/python3.8/site-packages/traitlets/traitlets.py in _validate(self, obj, value)
    608             return value
    609         if hasattr(self, 'validate'):
--> 610             value = self.validate(obj, value)
    611         if obj._cross_validation_lock is False:
    612             value = self._cross_validate(obj, value)

~/miniconda3/envs/jupyterlab/lib/python3.8/site-packages/traitlets/traitlets.py in validate(self, obj, value)
   1843             return value
   1844         else:
-> 1845             self.error(obj, value)
   1846 
   1847     def info(self):

~/miniconda3/envs/jupyterlab/lib/python3.8/site-packages/traitlets/traitlets.py in error(self, obj, value, error, info)
    688                     e = "The '%s' trait expected %s, not %s." % (
    689                         self.name, self.info(), describe("the", value))
--> 690                 raise TraitError(e)
    691 
    692     def get_metadata(self, key, default=None):

TraitError: The 'exporter' trait of a ConfluencePreprocessor instance expected a ConfluenceExporter, not the NoneType None.

I get a similar error when running nbconflux from the command line.

Make the package less of a monolith

Quick note from the Jupyter call today

@mpacer mentioned that a simple update to setup.py could make the tool runnable via nbconvert
I mentioned that breaking up the rather monolithic exporter + preprocessor setup that we have right now to make parts reusable independently (if there's value in that). The gotcha is that REST API calls to Confluence have to be made at various phases of the process to image version lookup, page version lookup, etc.

Conversion fails

Interesting package. it would be nice if it worked. we are using confluence across the org and it would be awesome if we could share are results like this directly from the notebook.

Unfortunately, it does not work:

nbconflux path/to/notebook.ipynb https://path/to/page

traceback:

Traceback (most recent call last):
  File "/Users/laukea/.pyenv/versions/miniconda3-latest/bin/nbconflux", line 10, in <module>
    sys.exit(main())
  File "/Users/laukea/.pyenv/versions/miniconda3-latest/lib/python3.7/site-packages/nbconflux/cli.py", line 57, in main
    extra_labels=args.extra_labels)
  File "/Users/laukea/.pyenv/versions/miniconda3-latest/lib/python3.7/site-packages/nbconflux/api.py", line 56, in notebook_to_page
    exporter = ConfluenceExporter(c)
  File "/Users/laukea/.pyenv/versions/miniconda3-latest/lib/python3.7/site-packages/nbconflux/exporter.py", line 100, in __init__
    self.server, self.page_id = self.get_server_info(self.url)
  File "/Users/laukea/.pyenv/versions/miniconda3-latest/lib/python3.7/site-packages/nbconflux/exporter.py", line 149, in get_server_info
    page_id = int(segs[5])
ValueError: invalid literal for int() with base 10: 'create'

Error 400 Client Error: Bad Request for url: https://.../child/attachment

When re-publishing a page with a number of attachments it can start to fail with a bad request error about child attachments. This error appears to be caused when there are more than 50 attachments for a page. A workaround is to delete the confluence page or publish to a new name. A single page with more than 50 attachments may run into this problem and prevent even the initial publication.

Traceback (most recent call last):
  File "/opt/maxpoint/envs/analysis-preview-py3/bin/nbconflux", line 6, in <module>
    sys.exit(nbconflux.cli.main())
  File "/var/lib/python3.6/site-packages/nbconflux/cli.py", line 55, in main
    enable_style=not args.exclude_style, enable_mathjax=args.include_mathjax)
  File "/var/lib/python3.6/site-packages/nbconflux/api.py", line 51, in notebook_to_page
    result = exporter.from_filename(notebook_file)
  File "/var/lib/python3.6/site-packages/nbconflux/exporter.py", line 339, in from_filename
    return super(ConfluenceExporter, self).from_filename(filename, *args, **kwargs)
  File "/var/lib/python3.6/site-packages/nbconvert/exporters/exporter.py", line 174, in from_filename
    return self.from_file(f, resources=resources, **kw)
  File "/var/lib/python3.6/site-packages/nbconvert/exporters/exporter.py", line 192, in from_file
    return self.from_notebook_node(nbformat.read(file_stream, as_version=4), resources=resources, **kw)
  File "/var/lib/python3.6/site-packages/nbconflux/exporter.py", line 314, in from_notebook_node
    self.add_or_update_attachment(filename, data, resources)
  File "/var/lib/python3.6/site-packages/nbconflux/exporter.py", line 268, in add_or_update_attachment
    resp.raise_for_status()
  File "/var/lib/python3.6/site-packages/requests/models.py", line 935, in raise_for_status
    raise HTTPError(http_error_msg, response=self)
requests.exceptions.HTTPError: 400 Client Error: Bad Request for url: https://confluence/rest/api/content/83985329/child/attachment

Facing Hard time to include "Code" macro instead of style. My confluence server does not support styling. So for code blocks I need to

Tags not stripping properly bug

Ran across this bug today when using fake HTML tags for emphasis nbconflux will fail to publish. example markdown below:

### My Title <insert funny quip here>

Display plotly charts

Hi! I'm a big fan of this module. I'm using it more and more. However, my (offline mode) plotly charts don't render in confluence. It looks like a raw HTML dump. Do you have any suggestions for remedying that?

MathJax issues

I'm exploring some issues with MathJax on our wiki. The issue is that the HTML macro currently used by nbconflux to add in the scripts are not supported on my corporate confluence. A MathJax plugin will be added to the wiki, since users who do not use Jupyter notebooks may know math as well ;)

Then, I guess I'll hack away until nbconflux can either use the MathJax plugin or embed it directly.

This is partly an FYI, and partly a query for direction - there must be ways to discover which plugins are installed, but these will not be accessible everywhere, so --exclude-mathjax perhaps becomes something like --exclude-mathjax --mathjax-plugin=True

Prevent notifications to page watcher

It would be great to be able to prevent watchers from receiving too many updates when I'm doing several exports to fine-tune the page. It seems you can do that with the confluence API by setting "minorEdit" : true in the version description:
https://community.atlassian.com/t5/Confluence-questions/Prevent-notifications-when-using-REST-API/qaq-p/948058

--exclude-style no longer working

This appears to simply be a matter of the confluence template not paying attention to the resource flag.

Related to #21

TraitError when attempting to convert ipynb to confluence page

I'm having trouble using this package because of a traitlets.traitlets.TraitError which I can't fix. I have already installed the relevant packages, created an Atlassian API key, set CONFLUENCE_USERNAME & CONFLUENCE_PASSWORD environment variables, and created a blank Atlassian webpage.

My command is

nbconflux "/Users/bo.osinski/Documents/imaging-research/bo/fragment-analyzer/fragmentation_data_EDA.ipynb" "https://tempuslabs.atlassian.net/wiki/spaces/TEM/pages/2021654744/Predicting+QC2"

And the error is

Using credentials for [email protected] from environment variables
Traceback (most recent call last):
  File "/Users/bo.osinski/miniconda3/envs/nbconflux_conda/lib/python3.6/site-packages/traitlets/traitlets.py", line 528, in get
    value = obj._trait_values[self.name]
KeyError: 'exporter'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Users/bo.osinski/miniconda3/envs/nbconflux_conda/bin/nbconflux", line 8, in <module>
    sys.exit(main())
  File "/Users/bo.osinski/miniconda3/envs/nbconflux_conda/lib/python3.6/site-packages/nbconflux/cli.py", line 55, in main
    enable_style=not args.exclude_style, enable_mathjax=args.include_mathjax)
  File "/Users/bo.osinski/miniconda3/envs/nbconflux_conda/lib/python3.6/site-packages/nbconflux/api.py", line 52, in notebook_to_page
    result = exporter.from_filename(notebook_file)
  File "/Users/bo.osinski/miniconda3/envs/nbconflux_conda/lib/python3.6/site-packages/nbconflux/exporter.py", line 330, in from_filename
    return super(ConfluenceExporter, self).from_filename(filename, *args, **kwargs)
  File "/Users/bo.osinski/miniconda3/envs/nbconflux_conda/lib/python3.6/site-packages/nbconvert/exporters/exporter.py", line 181, in from_filename
    return self.from_file(f, resources=resources, **kw)
  File "/Users/bo.osinski/miniconda3/envs/nbconflux_conda/lib/python3.6/site-packages/nbconvert/exporters/exporter.py", line 199, in from_file
    return self.from_notebook_node(nbformat.read(file_stream, as_version=4), resources=resources, **kw)
  File "/Users/bo.osinski/miniconda3/envs/nbconflux_conda/lib/python3.6/site-packages/nbconflux/exporter.py", line 297, in from_notebook_node
    html, resources = super(ConfluenceExporter, self).from_notebook_node(nb, resources, **kw)
  File "/Users/bo.osinski/miniconda3/envs/nbconflux_conda/lib/python3.6/site-packages/nbconvert/exporters/html.py", line 119, in from_notebook_node
    return super().from_notebook_node(nb, resources, **kw)
  File "/Users/bo.osinski/miniconda3/envs/nbconflux_conda/lib/python3.6/site-packages/nbconvert/exporters/templateexporter.py", line 369, in from_notebook_node
    nb_copy, resources = super().from_notebook_node(nb, resources, **kw)
  File "/Users/bo.osinski/miniconda3/envs/nbconflux_conda/lib/python3.6/site-packages/nbconvert/exporters/exporter.py", line 143, in from_notebook_node
    nb_copy, resources = self._preprocess(nb_copy, resources)
  File "/Users/bo.osinski/miniconda3/envs/nbconflux_conda/lib/python3.6/site-packages/nbconvert/exporters/exporter.py", line 318, in _preprocess
    nbc, resc = preprocessor(nbc, resc)
  File "/Users/bo.osinski/miniconda3/envs/nbconflux_conda/lib/python3.6/site-packages/nbconvert/preprocessors/base.py", line 47, in __call__
    return self.preprocess(nb, resources)
  File "/Users/bo.osinski/miniconda3/envs/nbconflux_conda/lib/python3.6/site-packages/nbconflux/preprocessor.py", line 41, in preprocess
    .format(server=self.exporter.server, page_id=self.exporter.page_id),
  File "/Users/bo.osinski/miniconda3/envs/nbconflux_conda/lib/python3.6/site-packages/traitlets/traitlets.py", line 556, in __get__
    return self.get(obj, cls)
  File "/Users/bo.osinski/miniconda3/envs/nbconflux_conda/lib/python3.6/site-packages/traitlets/traitlets.py", line 535, in get
    value = self._validate(obj, dynamic_default())
  File "/Users/bo.osinski/miniconda3/envs/nbconflux_conda/lib/python3.6/site-packages/traitlets/traitlets.py", line 591, in _validate
    value = self.validate(obj, value)
  File "/Users/bo.osinski/miniconda3/envs/nbconflux_conda/lib/python3.6/site-packages/traitlets/traitlets.py", line 1677, in validate
    self.error(obj, value)
  File "/Users/bo.osinski/miniconda3/envs/nbconflux_conda/lib/python3.6/site-packages/traitlets/traitlets.py", line 1524, in error
    raise TraitError(e)
traitlets.traitlets.TraitError: The 'exporter' trait of a ConfluencePreprocessor instance must be a ConfluenceExporter, but a value of class 'NoneType' (i.e. None) was specified.

Relevant installed packages:

bleach==3.3.0
html5lib==1.1
jupyter-client==6.1.11
jupyter-core==4.7.1
nbconflux==0.5.0
nbconvert==6.0.7
nbformat==5.1.2
traitlets==4.3.3
Python 3.6.13
Mac OS 10.14.6

I've tried running this in my native python as well as a new python 3.6 conda environment, but always get the same TraitError. Does anybody have an idea how I can fix this? Thank you!

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