Public bug reported:
With python3-tornado 6.5.4-0.1ubuntu0.2 installed Jupyter Notebook fails
with the following error:
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/tornado/web.py", line 1881, in
_execute
result = await result
^^^^^^^^^^^^
File "/usr/lib/python3/dist-packages/tornado/web.py", line 2816, in get
self.absolute_path = self.validate_absolute_path(self.root,
absolute_path)
~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3/dist-packages/notebook/base/handlers.py", line
843, in validate_absolute_path
return super().validate_absolute_path(root, absolute_path)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3/dist-packages/tornado/web.py", line 3021, in
validate_absolute_path
absolute_path = self._resolve_symlink_target(absolute_path)
File "/usr/lib/python3/dist-packages/tornado/web.py", line 3086, in
_resolve_symlink_target
allowed_directory = os.path.realpath(self.allowed_symlink_directory)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'FileFindHandler' object has no attribute
'allowed_symlink_directory'
Rolling back to 6.5.4-0.1 allows Jupyter to start again.
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: python3-tornado 6.5.4-0.1ubuntu0.2
ProcVersionSignature: Ubuntu 7.0.0-38.38-generic 7.0.14
Uname: Linux 7.0.0-38-generic x86_64
ApportVersion: 2.34.1-0ubuntu0.1
Architecture: amd64
CasperMD5CheckResult: pass
Date: Tue Oct 27 14:06:31 2026
InstallationDate: Installed on 2026-05-11 (169 days ago)
InstallationMedia: Ubuntu-Server 26.04 "Resolute Raccoon" - Release amd64
(20260420.1)
ProcEnviron:
LANG=en_GB.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm
XDG_RUNTIME_DIR=<set>
SourcePackage: python-tornado
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: python-tornado (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug resolute
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/2172317
Title:
python3-tornado 6.5.4-0.1ubuntu0.2 breaks Jupyter Notebook
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/python-tornado/+bug/2172317/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
