Cannot eval variable from notebook in markdown file

[mortenengen]

I want to use a notebook to perform calculations, and one or more markdown files to write a document where I am using figures and variables from the notebook. Matplotlib plots created in the notebook are embedded using the recipe in docs. However, I am not able to use the eval role to embed a variable from the notebook. Steps to reproduce the observed behaviour are shown below.

I am running on:

• mystmd v1.3.11
• windows

Description

Please find below three files that can be used to reproduce the observed behaviour: 1) requirements.txt, 2) calculations.ipynb, and 3) report.md.

requirements.txt

The Python environment can be created with the dependencies given in requirements.txt:

matplotlib
jupyter-server
ipykernel

calculations.ipynb

A notebook with the following cells. The first and last cells are markdown, the remaining cells are python.

---
title: Calculations
author: Name Nameson
exports:
  - format: pdf
    output: calculations.pdf
    template: plain_latex
---

#| tags:
#|  - remove-cell
import matplotlib.pyplot as plt
import numpy as np

#| tags:
#|  - remove-cell
#| label: fig-cos
x = np.linspace(0, np.pi)
y = np.cos(x)

fig, ax = plt.subplots()
ax.plot(x, y);

#| tags:
#|  - remove-cell
calculation_result = 42.0

The calculation result is {eval}`calculation_result`.

If I do a myst build calculations.ipynb --pdf --execute the variable is embedded as expected. ✅

report.md

A markdown file with the following contents.

---
title: The report
author: Name Nameson
exports:
  - format: pdf
    output: report.pdf
    template: plain_latex
kernelspec:
  name: python3
  display_name: venv
---
:::{figure} #fig-cos
:label: figure-from-nb
The `cos` function.
:::

The calculation result is {eval}`calculation_result`.

If I do a myst build report.md --pdf --execute the matplotlib figure from the notebook is embedded as expected, but the variable calculation_result cannot be embedded. 💥

The following is printed in the terminal, possibly indicating that calculation_error cannot be found in the namespace available to report.md:

📬 Performing exports:
   report.md -> report.pdf
💿 Executing Notebook (report.md) [no execution cache found]
💾 Adding Cached Notebook Outputs (calculations.ipynb)
📖 Built calculations.ipynb in 22 ms.
🚀 Starting new Jupyter server
🪐 Jupyter server started
   http://localhost:8888/?token=3ce1d702a24b5985ac5c53a9717a45c105d6b0eb03cfc90d
Starting WebSocket: ws://localhost:8888/api/kernels/d2db867b-6de2-4d70-9f6f-a91bb3566705
⛔️ report.md An exception occurred during expression evaluation, halting further execution:

NameError: name 'calculation_result' is not defined

📖 Built report.md in 3.15 s.
...

It would be extremely powerful to have the ability to embed variables like this in markdown files and not only notebooks 🚀