#1904·hello-algo

[Bug] Visualized Execution from PythonTutor not working

Author: beatrix-chanCreated May 9, 2026Updated May 13, 2026

Description

Hello Algo's visualization is provided via PythonTutor, common problems (this issue wants to solve) include:

  • Displayed raw links instead of code + visual (EN, JP, RU)
  • Code too long (JP, RU)

Impacted chapters and languages

Assume the ones listed below are the one displayed the raw links. Error messages are included if it's related to "Code too long".

(Failed) Attempted Troubleshoots

  • Switch browsers (Google Chrome, Zen Browser, Brave Browser)
  • Incognito mood
  • Force reload

Temporary Solution

  • Visit their respective visualizer in other language versions (Simplified Chinese and Traditional Chinese are complete)
  • Copy raw link to browser (Warning: comments might not be in the same language)

Related but non essential problems

Checklist below can be converted to sub-issues or new issues if krahets and/or maintainers believe it's worth following up.

  • Incomplete visualizations in English Version: Some visualizations are provided in all languages except English (e.g. 6.1.2)