Freeze and protect cell / skip execution

[sapphire008]

Feature: Notebook Editor, Interactive Window, Python Editor cells

Description

The unofficial Jupyter notebook extension have a "Freeze" extension. I am wondering if the team can add this feature to the notebook extension. It has 3 modes:

• Unlock: user can freely edit and execute the content of the cell
• Read-only: user can execute but not edit the cell
• Frozen: user can neither edit nor execute the cell

Use cases:

• Run the entire notebook from end to end, but want to skip some cells
• Store some core functions / parameters at a cell, and make that cell read-only to avoid changes during model tuning

Microsoft Data Science for VS Code Engineering Team: @rchiodo, @IanMatthewHuff, @DavidKutu, @DonJayamanne, @greazer, @joyceerhl

[joyceerhl]

Thanks for the feature request! We'll discuss this at our upcoming triage 😊

[mmcguffi]

Im assuming this didnt pass triage? :) I really appreciated this ability when I used Jupyter in my browser -- VScode support would be very helpful

[DonJayamanne]

[sapphire008]

@DonJayamanne The screenshot above seems to be consistent with how Freeze implemented the cell freezing capabilities, based on this script:

• In the "normal" state (initial state): deletable = True, editable = True
• In the "read-only" state: deletable = False, editable = False
• In the "frozen" state: deletable = False, editable = False. Additionally, they extended the metadata to have a field run_control.frozen = True. Then they patched the execution function with this function to check the run_control state before execution.

 function patch_CodeCell_execute () {
      console.log('[Freeze] patching CodeCell.prototype.execute');
      var old_execute = CodeCell.prototype.execute;

      CodeCell.prototype.execute = function () {
          if (this.metadata.run_control === undefined ||
              !this.metadata.run_control.frozen
          ) {
              old_execute.apply(this, arguments);
          }
      };
  }

Although I can read the script itself, I have never developed in JavaScript in the past. So I have zero confidence in my ability to create a PR for this feature. But I am willing to work with anyone that knows JavaScript + VSCode Jupyter Extension.

[eromoe]

Would be good to add : skip some cell when run all but runable when run single cell

[simonrouse9461]

Any update on this? Honoring official Jupyter metadata will be really helpful. Especially the deletable and editable.