Arch Linux

Description:

community/jupyter-nbconvert 5.4-1 does not work with community-testing/python-tornado 6.0.2-1:

[E 10:54:00.017 NotebookApp] Uncaught exception GET /notebooks/Projects/LDP/LDP-Copy1.ipynb (::1)
HTTPServerRequest(protocol='http', host='localhost:8889', method='GET', uri='/notebooks/Projects/LDP/LDP-Copy1.ipynb', version='HTTP/1.1', remote_ip='::1')
Traceback (most recent call last):
File "/usr/lib/python3.7/site-packages/tornado/web.py", line 1697, in _execute
result = method(*self.path_args, **self.path_kwargs)
File "/usr/lib/python3.7/site-packages/tornado/web.py", line 3174, in wrapper
return method(self, *args, **kwargs)
File "/usr/lib/python3.7/site-packages/notebook/notebook/handlers.py", line 59, in get
get_custom_frontend_exporters=get_custom_frontend_exporters
File "/usr/lib/python3.7/site-packages/notebook/base/handlers.py", line 519, in render_template
return template.render(**ns)
File "/usr/lib/python3.7/site-packages/jinja2/asyncsupport.py", line 76, in render
return original_render(self, *args, **kwargs)
File "/usr/lib/python3.7/site-packages/jinja2/environment.py", line 1008, in render
return self.environment.handle_exception(exc_info, True)
File "/usr/lib/python3.7/site-packages/jinja2/environment.py", line 780, in handle_exception
reraise(exc_type, exc_value, tb)
File "/usr/lib/python3.7/site-packages/jinja2/_compat.py", line 37, in reraise
raise value.with_traceback(tb)
File "/usr/lib/python3.7/site-packages/notebook/templates/notebook.html", line 1, in top-level template code
{% extends "page.html" %}
File "/usr/lib/python3.7/site-packages/notebook/templates/page.html", line 154, in top-level template code
{% block header %}
File "/usr/lib/python3.7/site-packages/notebook/templates/notebook.html", line 120, in block "header"
{% for exporter in get_custom_frontend_exporters() %}
File "/usr/lib/python3.7/site-packages/notebook/notebook/handlers.py", line 19, in get_custom_frontend_exporters
from nbconvert.exporters.base import get_export_names, get_exporter
File "/usr/lib/python3.7/site-packages/nbconvert/__init__.py", line 7, in <module>
from . import postprocessors
File "/usr/lib/python3.7/site-packages/nbconvert/postprocessors/__init__.py", line 5, in <module>
from .serve import ServePostProcessor
File "/usr/lib/python3.7/site-packages/nbconvert/postprocessors/serve.py", line 19, in <module>
class ProxyHandler(web.RequestHandler):
File "/usr/lib/python3.7/site-packages/nbconvert/postprocessors/serve.py", line 21, in ProxyHandler
@web.asynchronous
AttributeError: module 'tornado.web' has no attribute 'asynchronous'

Steps to reproduce:

1. Open any .ipynb in Jupyter notebook.