How to fix empty table of content in Pylatex?

Question

I'm trying to generate a pdf file using pylatex and pdf latex. I have sections and subsection in my document and I want to create a table of contents like this:

doc.append(NewPage())
doc.append(Command('tableofcontents'))
doc.append(NoEscape(r'\clearpage'))

but after I compile it it generates a blank page with just

Contents

I do not know how can I solve this problem. And this is mt generate command:

doc.generate_pdf(filepath=filepath, compiler=pdflatex_path, clean_tex=True)

Answer 1

In plain $\LaTeX$, you need to run a second pass to get the table of contents. The first pass creates an intermediate file with section headers and their page numbers. Since you are passing clean_tex=True, probably this file is being deleted before you can run the second pass.

The documentation says that you can install latexmk to do this automatically. PyLaTeX will detect and use this.