From d7f2f7f019e4159aee5f252ec62e807fdf62abb2 Mon Sep 17 00:00:00 2001
From: Christof Kaufmann <christof.kaufmann@hs-bochum.de>
Date: Thu, 23 Jan 2025 23:35:43 +0100
Subject: [PATCH] keras3-cpu: Fix broken PDF export of notebooks
To export a Jupyter Notebook as PDF from Jupyter Lab or VS Code
nbconvert is used. nbconvert calls pandoc to generate LaTeX source and
compile it as PDF. nbconvert uses a custom LaTeX template, which is not
compatible with pandoc >= 3.2.1, currently. This commit is a workaround
to make it compatible. Revert this commit as soon as
https://github.com/jupyter/nbconvert/pull/2196 is available in the base
docker image. However, the workaround should not do any harm, since it
checks whether the patch is required before modifying the template.
---
keras3-cpu/Dockerfile | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/keras3-cpu/Dockerfile b/keras3-cpu/Dockerfile
index 868e865..1afbc92 100644
--- a/keras3-cpu/Dockerfile
+++ b/keras3-cpu/Dockerfile
@@ -184,6 +184,11 @@ RUN chown -R ${NB_USER} "/home/${NB_USER}/.jupyter" && \
fix-permissions "/etc/skel"
# remember to copy back in post start hook
+# workaround for PDF export until https://github.com/jupyter/nbconvert/pull/2196 arrives
+RUN if ! grep -q "pandocbounded" /opt/conda/share/jupyter/nbconvert/templates/latex/base.tex.j2; then \
+ echo "Patching nbconvert latex template." && \
+ sed -i '168i\ \\newcommand{\\pandocbounded}[1]{#1}' /opt/conda/share/jupyter/nbconvert/templates/latex/base.tex.j2 ; \
+ fi
# override maintainer label from Jupyter docker stacks
LABEL maintainer="Christof Kaufmann <christof.kaufmann@hs-bochum.de>"
--
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