Issues

• Allow notary context manger to be reentrant and reused.

  jupyter/nbformat#454 · Filter by author Carreau opened on Aug 12, 2026

• CI broke with 5.11.0 release

  jupyter/nbformat#452 · Filter by author billti opened on Aug 7, 2026
  5

  

• Consider making metadata.kernelspec.display_name optional

  jupyter/nbformat#448 · Filter by author ML16516 opened on Aug 6, 2026

• Remove/replace codemirror_mode field?

  jupyter/nbformat#435 · Filter by author krassowski opened on Jul 15, 2026
  2

• Add new metadata field for locking a kernel

  jupyter/nbformat#433 · Filter by author DenisaCG opened on Jul 9, 2026

• Try to recover/fallback to an in-memory database if nbsignatures fails

  jupyter/nbformat#428 · Filter by author krassowski opened on May 11, 2026
  12

  

• test_is_valid_should_not_mutate fails with Python 3.13

  jupyter/nbformat#405 · Filter by author mcepl opened on Nov 20, 2024
  5

• TypeError: list indices must be integers or slices, not str

  jupyter/nbformat#400 · Filter by author dsm-72 opened on Apr 21, 2024
  1

• Papermill Incompatibility with VS Code Generated Notebooks

  jupyter/nbformat#393 · Filter by author lachjames opened on Feb 16, 2024

• Jupyter notebook opening issue form anaconda distributer: ImportError: cannot import name 'encodestring' from 'base64' (/Users/ ... /python3.9/base64.py)

  jupyter/nbformat#392 · Filter by author Zewdu-Alamineh opened on Feb 15, 2024

• Facing test issues on PPC64LE architecture.

  jupyter/nbformat#387 · Filter by author vinodk99 opened on Nov 10, 2023

• Cell "executing" state

  jupyter/nbformat#365 · Filter by author davidbrochart opened on Jun 15, 2023
  1

• Issue AttributeError: 'list' object has no attribute 'split' nbconvert/filters/strings.py", line 201, in comment_lines return prefix + ("\n" + prefix).join(text.split("\n"))

  jupyter/nbformat#361 · Filter by author ShlomoStept opened on Apr 19, 2023

• Ambiguous warning about missing cell IDs

  jupyter/nbformat#359 · Filter by author krassowski opened on Apr 8, 2023
  11

• Should trusted metadata be documented in notebook file format?

  jupyter/nbformat#349 · Filter by author krassowski opened on Feb 19, 2023
  4

• nbformat 5.7.0 MissingIDFieldWarning

  jupyter/nbformat#335 · Filter by author prtome opened on Dec 15, 2022
  3

• 5.7.0: pytest is failing

  jupyter/nbformat#332 · Filter by author kloczek opened on Dec 6, 2022

• Should normalize update minor_version?

  bug
  jupyter/nbformat#328 · Filter by author vidartf opened on Nov 23, 2022
  1

• Fragment Identification Syntax for Jupyter (linking to cells in document)

  jupyter/nbformat#317 · Filter by author krassowski opened on Oct 22, 2022
  10

• HTML conversion fails with nbformat 5.5.0

  jupyter/nbformat#303 · Filter by author p-holl opened on Sep 19, 2022
  3

• New notebook-level metadata indicating whether outputs should be saved

  jupyter/nbformat#299 · Filter by author jasongrout opened on Aug 27, 2022
  3

• Should kernel info be included in notebook signature computation?

  question
  jupyter/nbformat#296 · Filter by author afshin opened on Aug 18, 2022
  4

• 5.4.0: sphinx warnings reference target not found

  jupyter/nbformat#285 · Filter by author kloczek opened on Jun 11, 2022

• Multiple languages in single notebook

  jupyter/nbformat#278 · Filter by author pkese opened on May 7, 2022

• Add a property to nbformat for storing multimedia

  jupyter/nbformat#251 · Filter by author adamjpatterson opened on Mar 2, 2022