Reproducible in vscode.dev or in VS Code Desktop?
Reproducible in the monaco editor playground?
Monaco Editor Playground Link
https://microsoft.github.io/monaco-editor/playground.html?source=v0.52.0#XQAAAAKnAQAAAAAAAABBqQkHQ5NjdMjwa-jY7SIQ9S7DNlzs5W-mwj0fe1ZCDRFc9ws9XQE0SJE1jc2VKxhaLFIw9vEWSxW3yscwzyNqXz8HGcRM7llq60Xf2dFVQaKGLkRsRu_z2ZE0NWgzCg62BuIVYtanb18eMNBNJsjVjyiYVHIbaAyf-nA4BerZWoQmUlMw-vMw3l1KEgsDwXUkFxkTWBpnTf4yO_qcZeejWbg2ck2NXeVHUfoPmtoeVUkxzH0S2hd6vksr2ua8lr3VCFo3Yjoss8fLIqw0VMhVOL7PYm9fvVPtU3Kp0tpUzhjV_E85CtmMO5xILERoMbp6yNzxyCG8Ko0RhRkKQXkyVZetsnXkCKUU3yPbfu2U53W0MZbSao9Fwac1gbpMNNwYku2aST_QKM_P5J7WkQlWVUDY5ErzL3oG58Eu_Jz-gOHa2geOwo_Mop__-LpYMQ
Monaco Editor Playground Code
const value = /* set from `myEditor.getModel()`: */ `# '100_000' should be formatted as a single value per https://peps.python.org/pep-0515/
numeric_literal_example = 100_000`;
// Hover on each property to see its docs!
const myEditor = monaco.editor.create(document.getElementById("container"), {
value,
language: "python",
automaticLayout: true,
});
Reproduction Steps
Open the playground link. Verify that 100_000 is formatted inconsistently.
Actual (Problematic) Behavior
Numeric literals with underscores are not highlighted as a single value by the syntax highlighter.

Expected Behavior
Numeric literals with underscores should be highlighted as a single value, as is done in VS Code.

Additional Context
Numeric literals with underscores were proposed in https://peps.python.org/pep-0515/ and have been supported since Python 3.6.
Reproducible in vscode.dev or in VS Code Desktop?
Reproducible in the monaco editor playground?
Monaco Editor Playground Link
https://microsoft.github.io/monaco-editor/playground.html?source=v0.52.0#XQAAAAKnAQAAAAAAAABBqQkHQ5NjdMjwa-jY7SIQ9S7DNlzs5W-mwj0fe1ZCDRFc9ws9XQE0SJE1jc2VKxhaLFIw9vEWSxW3yscwzyNqXz8HGcRM7llq60Xf2dFVQaKGLkRsRu_z2ZE0NWgzCg62BuIVYtanb18eMNBNJsjVjyiYVHIbaAyf-nA4BerZWoQmUlMw-vMw3l1KEgsDwXUkFxkTWBpnTf4yO_qcZeejWbg2ck2NXeVHUfoPmtoeVUkxzH0S2hd6vksr2ua8lr3VCFo3Yjoss8fLIqw0VMhVOL7PYm9fvVPtU3Kp0tpUzhjV_E85CtmMO5xILERoMbp6yNzxyCG8Ko0RhRkKQXkyVZetsnXkCKUU3yPbfu2U53W0MZbSao9Fwac1gbpMNNwYku2aST_QKM_P5J7WkQlWVUDY5ErzL3oG58Eu_Jz-gOHa2geOwo_Mop__-LpYMQ
Monaco Editor Playground Code
Reproduction Steps
Open the playground link. Verify that
100_000is formatted inconsistently.Actual (Problematic) Behavior
Numeric literals with underscores are not highlighted as a single value by the syntax highlighter.
Expected Behavior
Numeric literals with underscores should be highlighted as a single value, as is done in VS Code.
Additional Context
Numeric literals with underscores were proposed in https://peps.python.org/pep-0515/ and have been supported since Python 3.6.