Comment puis-je corriger «500: Erreur de serveur interne» sur le cahier jupyter car «tornado.web» n'a pas d'attribut «asynchrone»?
Le bloc-notes Jupiter n'ouvre pas les blocs-notes et affiche à la place un "500: Erreur de serveur interne". J'ai activé un environnement dont j'avais besoin et lancé Jupyter. Veuillez trouver ci-dessous ce que j'ai fait et le message d'erreur sur le terminal:
$ conda activate py3_parcels
$ jupyter notebook [I 18:20:39.663 NotebookApp] Loading IPython parallel extension [I 18:20:39.665 NotebookApp] Serving notebooks from local directory: /Users/davidlindo-atichati/run/GOM_MED [I 18:20:39.665 NotebookApp] The Jupyter Notebook is running at: [I 18:20:39.665 NotebookApp] http://localhost:8888/?token=36466fc830862b794856668cd6ded86fe0a664247233764a [I 18:20:39.665 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation). [C 18:20:39.677 NotebookApp]
Copy/paste this URL into your browser when you connect for the first time,
to login with a token:
http://localhost:8888/?token=36466fc830862b794856668cd6ded86fe0a664247233764a [I 18:20:40.211 NotebookApp] Accepting one-time-token-authenticated connection from ::1
Le carnet s'ouvre sur mon navigateur Safari. Mais lorsque j'essaie d'ouvrir un bloc-notes existant ou lorsque je crée un nouveau bloc-notes, je reçois un "500: Erreur de serveur interne" dans le navigateur et le message suivant sur le terminal:
[E 18:22:16.169 NotebookApp] Uncaught exception GET /notebooks/backtracking-sample-1.ipynb (::1)
HTTPServerRequest(protocol='http', Host='localhost:8888', method='GET', uri='/notebooks/backtracking-sample-1.ipynb', version='HTTP/1.1', remote_ip='::1')
Traceback (most recent call last):
File "/Users/davidlindo-atichati/miniconda3/envs/py3_parcels/lib/python3.7/site-packages/tornado/web.py", line 1697, in _execute
result = method(*self.path_args, **self.path_kwargs)
File "/Users/davidlindo-atichati/miniconda3/envs/py3_parcels/lib/python3.7/site-packages/tornado/web.py", line 3174, in wrapper
return method(self, *args, **kwargs)
File "/Users/davidlindo-atichati/miniconda3/envs/py3_parcels/lib/python3.7/site-packages/notebook/notebook/handlers.py", line 59, in get
get_custom_frontend_exporters=get_custom_frontend_exporters
File "/Users/davidlindo-atichati/miniconda3/envs/py3_parcels/lib/python3.7/site-packages/notebook/base/handlers.py", line 467, in render_template
return template.render(**ns)
File "/Users/davidlindo-atichati/miniconda3/envs/py3_parcels/lib/python3.7/site-packages/jinja2/asyncsupport.py", line 76, in render
return original_render(self, *args, **kwargs)
File "/Users/davidlindo-atichati/miniconda3/envs/py3_parcels/lib/python3.7/site-packages/jinja2/environment.py", line 1008, in render
return self.environment.handle_exception(exc_info, True)
File "/Users/davidlindo-atichati/miniconda3/envs/py3_parcels/lib/python3.7/site-packages/jinja2/environment.py", line 780, in handle_exception
reraise(exc_type, exc_value, tb)
File "/Users/davidlindo-atichati/miniconda3/envs/py3_parcels/lib/python3.7/site-packages/jinja2/_compat.py", line 37, in reraise
raise value.with_traceback(tb)
File "/Users/davidlindo-atichati/miniconda3/envs/py3_parcels/lib/python3.7/site-packages/notebook/templates/notebook.html", line 1, in top-level template code
{% extends "page.html" %}
File "/Users/davidlindo-atichati/miniconda3/envs/py3_parcels/lib/python3.7/site-packages/notebook/templates/page.html", line 154, in top-level template code
{% block header %}
File "/Users/davidlindo-atichati/miniconda3/envs/py3_parcels/lib/python3.7/site-packages/notebook/templates/notebook.html", line 120, in block "header"
{% for exporter in get_custom_frontend_exporters() %}
File "/Users/davidlindo-atichati/miniconda3/envs/py3_parcels/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 "/Users/davidlindo-atichati/miniconda3/envs/py3_parcels/lib/python3.7/site-packages/nbconvert/__init__.py", line 7, in <module>
from . import postprocessors
File "/Users/davidlindo-atichati/miniconda3/envs/py3_parcels/lib/python3.7/site-packages/nbconvert/postprocessors/__init__.py", line 5, in <module>
from .serve import ServePostProcessor
File "/Users/davidlindo-atichati/miniconda3/envs/py3_parcels/lib/python3.7/site-packages/nbconvert/postprocessors/serve.py", line 19, in <module>
class ProxyHandler(web.RequestHandler):
File "/Users/davidlindo-atichati/miniconda3/envs/py3_parcels/lib/python3.7/site-packages/nbconvert/postprocessors/serve.py", line 21, in ProxyHandler
@web.asynchronous
AttributeError: module 'tornado.web' has no attribute 'asynchronous' [E 18:22:16.178 NotebookApp] {
"Host": "localhost:8888",
"Cookie": "username-localhost-8888=\"2|1:0|10:1551828040|23:username-localhost-8888|44:OGQ4ZTgzZDRjZjFiNDMzZDk0ZTI2NmJkMDc3OTEzMDk=|e4504cac3111242d53ab46ce3b8fa72750876a90bef7bc980a2ebb3c6f77caec\"; username-localhost-8889=\"2|1:0|10:1551821266|23:username-localhost-8889|44:ZjgyOTBhNTE3Zjg0NDJlOGIyNTA5NDRiNTBjMzQ0YTk=|43b122243108c4f7dbf37e636660b8d0656f5173d2b363a6bb496681de6d4e5f\";
_xsrf=2|0a22b984|8687c792155e13f5d476952db2d9f2f7|1551360338",
"Connection": "keep-alive",
"Upgrade-Insecure-Requests": "1",
"Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
"User-Agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_3) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.0.3 Safari/605.1.15",
"Referer": "http://localhost:8888/tree",
"Accept-Language": "en-us",
"Accept-Encoding": "gzip, deflate"
} [E 18:22:16.178 NotebookApp] 500 GET /notebooks/backtracking-sample-1.ipynb (::1) 121.50ms referer=http://localhost:8888/tree
Ce ne sera pas une réponse parfaite. Mais je vous le ferai savoir quand même. Cela se produit en raison d'un conflit de version de package comme je l'ai compris. Si vous désinstallez et réinstallez Anaconda, cela fonctionnera. Ça a marché pour moi.