[Python] apply a template before creating a pdf file in libreoffice headless mode

I am using this docker command to create a pdf file in headless mode. It is working as expected.

# docker run --rm -v .:/workspace shantanuo/libreoffice-converter /workspace/pm_in_paris.odt --outdir /workspace


This is my docker file:

# vi Dockerfile
FROM ubuntu:latest

RUN apt-get update && \
apt-get install -y libreoffice

WORKDIR /workspace

ENTRYPOINT ["libreoffice", "--headless", "--convert-to", "pdf"]


But I am not able to apply a template before creating a pdf file.

FROM ubuntu:latest
RUN apt-get update && apt-get install -y libreoffice python3 python3-venv
RUN python3 -m venv /workspace/venv

RUN /workspace/venv/bin/pip install --upgrade pip
RUN /workspace/venv/bin/pip install unotools

COPY * /workspace/
WORKDIR /workspace

CMD ["/workspace/venv/bin/python3", "/workspace/convert_to_pdf.py", "/workspace/paris.odt", "/workspace/template.ott", "/workspace/output.pdf"]


I built docker image using the above mentioned file and run it:

docker run -it shantanuo/libreoffice-converter2 bash


I execute this command from the docker container:

root@8a6d5682dcfa:/workspace# soffice --headless --accept="pipe,name=libreoffice;urp;StarOffice.ComponentContext" & python3 /workspace/convert_to_pdf.py /workspace/in_paris.odt /workspace/maaya.ott /workspace/


And get this error:

Traceback (most recent call last):
File "/workspace/convert_to_pdf.py", line 42, in <module>
apply_template_and_convert_to_pdf(args.document, args.template, args.output)
File "/workspace/convert_to_pdf.py", line 22, in apply_template_and_convert_to_pdf
document.applyTemplate(template)
^^^^^^^^^^^^^^^^^^^^^^
AttributeError: applyTemplate


It looks like applyTemplate property is not available.

cat convert_to_pdf.py

import uno
import argparse

def apply_template_and_convert_to_pdf(document_path, template_path, output_path):
# Create the LibreOffice UNO connection
local_context = uno.getComponentContext()
resolver = local_context.ServiceManager.createInstanceWithContext("com.sun.star.bridge.UnoUrlResolver", local_context)

...
...

document.applyTemplate(template)

...
...


Any suggestion will be appreciated.

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