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2520ebb145
## Summary
This PR adds a fallback logic for `is_python_notebook` to check the
`kernelspec.language` field.
Reference implementation in VS Code:
1c31e75898/extensions/ipynb/src/deserializers.ts (L20-L22)
It's also required for the kernel to provide the `language` they're
implementing based on
https://jupyter-client.readthedocs.io/en/stable/kernels.html#kernel-specs
reference although that's for the `kernel.json` file but is also
included in the notebook metadata.
Closes: #12281
## Test Plan
Add a test case for `is_python_notebook` and include the test notebook
for round trip validation.
The test notebook contains two cells, one is JavaScript (denoted via the
`vscode.languageId` metadata) and the other is Python (no metadata). The
notebook metadata only contains `kernelspec` and the `language_info` is
absent.
I also verified that this is a valid notebook by opening it in Jupyter
Lab, VS Code and using `nbformat` validator.
48 lines
859 B
Text
48 lines
859 B
Text
{
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"cells": [
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"# Kernel spec language\n",
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"\n",
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"This is a test notebook for validating the fallback logic of `is_python_notebook` to check `kernelspec.language` if `language_info` is absent.\n"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {
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"vscode": {
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"languageId": "javascript"
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}
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},
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"outputs": [],
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"source": [
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"function add(x, y) {\n",
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" return x + y;\n",
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"}"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"import os\n",
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"\n",
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"print(\"hello world\")"
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]
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}
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],
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"metadata": {
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"kernelspec": {
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"display_name": "Python 3",
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"language": "python",
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"name": "python"
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}
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},
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"nbformat": 4,
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"nbformat_minor": 2
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}
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