"""An error handler for JupyterLab."""
# Copyright (c) Jupyter Development Team.
# Distributed under the terms of the Modified BSD License.
from jupyter_server.base.handlers import JupyterHandler
from jupyter_server.extension.handler import ExtensionHandlerMixin
from tornado import web
TEMPLATE = """
JupyterLab Error
JupyterLab Error
{messages}
"""
class ErrorHandler(ExtensionHandlerMixin, JupyterHandler):
def initialize(self, messages=None, name=None):
super().initialize(name=name)
self.messages = messages
@web.authenticated
@web.removeslash
def get(self):
msgs = [f"{msg}
" for msg in self.messages]
self.write(TEMPLATE.format(messages="\n".join(msgs)))