Output truncated with no way to view all output in the notebook itself
  • 21-May-2023
Lightrun Team
Author Lightrun Team
Output truncated with no way to view all output in the notebook itself

Output truncated with no way to view all output in the notebook itself

Lightrun Team
Lightrun Team

Explanation of the problem

After the update to version 1.59 of VS Code, a bug has been identified in the behavior of the output of cells in an interactive Python window. Specifically, if the output exceeds 30 lines, it is truncated, disregarding the configured setting ‘jupyter.textOutputLimit’. Despite efforts to find an alternative solution, no other method has been discovered to modify this behavior. This issue is particularly frustrating because the ‘show more’ option only displays the unformatted output, rendering it impractical for longer outputs. It appears that in previous versions, this problem was resolved by utilizing a scroll bar, which provided a seamless user experience.

The current extension version is 2021.8.1105858891, and the VS Code version is 1.59.0 (379476f0e13988d90fab105c5c19e7abc8b1dea8, 2021-08-04T23:13:20.182Z). The operating system running is Linux x64 with version 5.4.0-80-generic. No restricted mode is enabled, and the remote OS version matches the local Linux x64 version, which is 5.11.22-100.fc32.x86_64.


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Problem solution for Output truncated with no way to view all output in the notebook itself

To address this bug, it is crucial to investigate the root cause of the issue and identify the reason why the ‘jupyter.textOutputLimit’ setting is not being respected in version 1.59. It is possible that changes made during the update inadvertently affected the behavior of the interactive Python window. Additionally, efforts should be made to reintroduce the scroll bar functionality, which allowed users to navigate through long outputs comfortably. Resolving this bug will enhance the usability and effectiveness of the interactive Python window in VS Code, ensuring that users can view complete output without truncation and with proper formatting.

While awaiting a fix for this bug, users are advised to provide additional details about their experience with this issue, such as steps to reproduce and any relevant error messages or logs. This information will be valuable in diagnosing and resolving the problem. Furthermore, users are encouraged to actively participate in discussions related to this bug and express their support for its resolution. By doing so, they can contribute to the prioritization of the bug fix and help ensure that it receives the necessary attention from the development team.


Other popular problems with Microsoft VS Code

Problem: Microsoft VS Code

One of the most common problems faced by Microsoft Visual Studio Code (VSCode) users is slow performance. This can be due to a variety of reasons such as large workspace size, extensions installed, or insufficient memory and CPU allocation.


To resolve this issue, users can try optimizing their workspace by removing unused files, limiting the number of extensions installed, and adjusting the CPU and memory settings in the User Settings. Upgrading to the latest version of VSCode and ensuring that the system has the recommended hardware specifications can also help improve performance.

Problem: Extension Compatibility Issues

Another common issue faced by VSCode users is compatibility issues with extensions. This occurs when an extension is not compatible with the version of VSCode or when it conflicts with another extension.


To resolve this issue, users can try uninstalling and reinstalling the conflicting extension, updating both VSCode and the extensions to the latest version, or disabling extensions one by one to determine which one is causing the issue. If the problem persists, users can report it to the extension developers or seek support from the VSCode community.

Problem: Debugging Issues

Debugging is a crucial aspect of software development, and debugging issues in VSCode can cause significant frustration for users. This can be due to incorrect configuration of the debugger, outdated debug adapters, or compatibility issues with the target runtime.


To resolve debugging issues, users can ensure that the debugger is properly configured and that the debug adapter is up-to-date. They can also try switching to a different debugger or updating the target runtime to ensure compatibility with VSCode. If the problem persists, users can seek support from the VSCode community or the debugger provider.

A brief introduction to Microsoft VS Code

Microsoft Visual Studio Code (VSCode) is a source code editor developed by Microsoft for Windows, macOS, and Linux. It is built on the Electron framework and utilizes the Monaco editor. VSCode is designed to be a lightweight and fast code editor that can handle a wide range of programming languages and development scenarios. It supports features such as syntax highlighting, code completion, and debugging, making it an excellent tool for developers.

VSCode also has an extensive ecosystem of extensions, which can be easily installed from the Visual Studio Code Marketplace. These extensions provide a wide range of functionalities, from additional programming languages and themes to advanced debugging tools and code refactoring. The ability to customize and extend VSCode with extensions makes it a flexible and adaptable code editor that can meet the needs of developers across a wide range of projects and programming languages. Additionally, VSCode has a rich API, making it easy for developers to create their own extensions and customize their development experience.

Most popular use cases for Microsoft VS Code

  1. Source Code Editing: Microsoft Visual Studio Code (VSCode) is primarily designed for editing source code. It supports a wide range of programming languages including, but not limited to, JavaScript, TypeScript, Python, Java, and C++. VSCode provides advanced code editing features such as syntax highlighting, code completion, and code snippets, making it an efficient tool for writing and editing code.
  2. Debugging: VSCode includes a powerful debugging interface that supports debugging applications in multiple languages and environments. This includes features such as breakpoints, call stacks, and a console for interaction with the application being debugged. The ability to debug code directly within the editor makes it easier for developers to identify and fix issues, speeding up their development process.
  3. Integrating with External Tools: VSCode provides the ability to integrate with external tools such as version control systems, build systems, and task runners. For example, the following code block demonstrates integrating with Git using the GitLens extension:
# Example of using GitLens with Visual Studio Code

# To install the GitLens extension, open the command palette (Ctrl+Shift+P) and run the following command:
# ext install eamodio.gitlens

# Once installed, GitLens provides a range of functionalities for working with Git repositories, including:
# - CodeLens annotations for Git blame information
# - Inline blame annotations
# - File and line-level blame annotations
# - Visual Git blame annotations in the gutter
# - Quick actions for stash, reset, and more
# - Improved Git conflict editor
# - And more...

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