[Bug] Visualized Execution from PythonTutor not working

[beatrix-chan]

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".

• 4.1 Arrays
  • Japanese - 4.1.1's 1. only
  • Russian - 4.1.1's 1. only
• 5.1 Stacks
  • Japanese - 5.1.1
  • Russian - 5.1.1
• 6.1 Hash Table
  • English - 6.1.1
  • Japanese - 6.1.1 only
  • Russian - 6.1.1 only
• 6.3 Hash Algorithm
  • English - 6.3.4
  • Japanese - 6.3.4
  • Russian - 6.3.4
• 7.1 Binary Tree
  • Japanese - 7.1.2 both
  • Russian - 7.1.2 both
• 7.2 Binary Tree Traversal
  • Japanese - 7.2.2's 1. Error Message:

    Error! your code is around 5664 URL-encoded bytes, which is too long for this tool.
    Shorten your code to less than 5600 bytes and re-try. [#ErrorCodeTooLong]
    

• 7.4 Binary Search Tree
  • Japanese - 7.4.1's 1., 3. Error Messages:

    Error! your code is around 5648 URL-encoded bytes, which is too long for this tool.
    Shorten your code to less than 5600 bytes and re-try. [#ErrorCodeTooLong]
    

    Error! your code is around 5914 URL-encoded bytes, which is too long for this tool.
    Shorten your code to less than 5600 bytes and re-try. [#ErrorCodeTooLong]
    

• 8.1 Heap
  • Japanese - 8.1.1 only
  • Russian - 8.1.1 only
• 9.3 Graph traversal
  • Japanese - 9.3.1's 1 only Error Message:

    Error! your code is around 5780 URL-encoded bytes, which is too long for this tool.
    Shorten your code to less than 5600 bytes and re-try. [#ErrorCodeTooLong]
    

• 13.3 Subset-Sum problem
  • Russian - 13.3.1's 3 only Error Message:

    Error! your code is around 5981 URL-encoded bytes, which is too long for this tool.
    Shorten your code to less than 5600 bytes and re-try. [#ErrorCodeTooLong]
    

(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)

[evanzorren1231-ui]

Thank you for reporting these issues regarding the PythonTutor visualizations in "Hello Algo."

…

On Sat, May 9, 2026, 6:50 AM Beatrix CHAN ***@***.***> wrote: *beatrix-chan* created an issue (krahets/hello-algo#1904) <#1904> 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". - 4.1 Arrays - Japanese - 4.1.1's 1. only <https://www.hello-algo.com/ja/chapter_array_and_linkedlist/array/#4> - Russian - 4.1.1's 1. only <https://www.hello-algo.com/ru/chapter_array_and_linkedlist/array/#4> - 5.1 Stacks - Japanese - 5.1.1 <https://www.hello-algo.com/ja/chapter_stack_and_queue/stack/#511> - Russian - 5.1.1 <https://www.hello-algo.com/ru/chapter_stack_and_queue/stack/#511> - 6.1 Hash Table - English - 6.1.1 <https://www.hello-algo.com/en/chapter_hashing/hash_map/#611> - Japanese - 6.1.1 only <https://www.hello-algo.com/jp/chapter_hashing/hash_map/#611> - Russian - 6.1.1 only <https://www.hello-algo.com/ru/chapter_hashing/hash_map/#611> - 6.3 Hash Algorithm - English - 6.3.4 <https://www.hello-algo.com/en/chapter_hashing/hash_algorithm/#634> - Japanese - 6.3.4 <https://www.hello-algo.com/ja/chapter_hashing/hash_algorithm/#634> - Russian - 6.3.4 <https://www.hello-algo.com/ru/chapter_hashing/hash_algorithm/#634> - 7.1 Binary Tree - Japanese - 7.1.2 both <https://www.hello-algo.com/ja/chapter_tree/binary_tree/#712> - Russian - 7.1.2 both <https://www.hello-algo.com/ru/chapter_tree/binary_tree/#712> - 7.2 Binary Tree Traversal - Japanese - 7.2.2's 1. <https://www.hello-algo.com/ja/chapter_tree/binary_tree_traversal/#1_1> *Error Message*: Error! your code is around 5664 URL-encoded bytes, which is too long for this tool. Shorten your code to less than 5600 bytes and re-try. [#ErrorCodeTooLong] - 7.4 Binary Search Tree - Japanese - 7.4.1's 1., 3. <https://www.hello-algo.com/ja/chapter_tree/binary_search_tree/> *Error Messages*: Error! your code is around 5648 URL-encoded bytes, which is too long for this tool. Shorten your code to less than 5600 bytes and re-try. [#ErrorCodeTooLong] Error! your code is around 5914 URL-encoded bytes, which is too long for this tool. Shorten your code to less than 5600 bytes and re-try. [#ErrorCodeTooLong] - 8.1 Heap - Japanese - 8.1.1 only <https://www.hello-algo.com/ja/chapter_heap/heap/#811> - Russian - 8.1.1 only <https://www.hello-algo.com/ru/chapter_heap/heap/#811> - 9.3 Graph traversal - Japanese - 9.3.1's 1 only <https://www.hello-algo.com/ja/chapter_graph/graph_traversal/#1> *Error Message*: Error! your code is around 5780 URL-encoded bytes, which is too long for this tool. Shorten your code to less than 5600 bytes and re-try. [#ErrorCodeTooLong] - 13.3 Subset-Sum problem - Russian - 13.3.1's 3 only <https://www.hello-algo.com/ru/chapter_backtracking/subset_sum_problem/#3> *Error Message*: Error! your code is around 5981 URL-encoded bytes, which is too long for this tool. Shorten your code to less than 5600 bytes and re-try. [#ErrorCodeTooLong] 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) — Reply to this email directly, view it on GitHub <#1904>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/CC3ZD7SKL7O6CXRY5PWTXDL4Z4LQPAVCNFSM6AAAAACYXEQ2YKVHI2DSMVQWIX3LMV43ASLTON2WKOZUGQYTENBQGM4TSMY> . Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub>. You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>