This script generates a three-column long table that runs over multiple pages in LaTeX given a two-column time and description text file.

youtube-video-index-latex.py

#!/usr/bin/env python

import re
import sys

HEADER = r"""
\documentclass{article}
\usepackage{booktabs,makecell,multirow,threeparttable,diagbox}
\usepackage{longtable}
\usepackage{fancyvrb}
\usepackage{caption}
\usepackage{pdflscape}
\usepackage[a4paper, margin=1.5cm]{geometry}


\usepackage{fancyhdr}

% Set up fancy page style
\pagestyle{fancy}
\fancyhf{} % Clear all headers/footers
\renewcommand{\headrulewidth}{0pt} % Remove header line

\usepackage[
  colorlinks=true,
  linkcolor=blue,
  bookmarksnumbered=true,
  CJKbookmarks=true,
  bookmarksopen=true]{hyperref}

\begin{document}

\newgeometry{left=1cm, right=1cm, top=2cm, bottom=2cm}

\begin{landscape}
    %\fancyfoot[C]{\thepage} % Page number at bottom center

    \begin{longtable}{p{16em}rp{16em}rp{16em}r}
    \caption{AWS SAA Training Video Bookmarks} \\
    \label{tab:tspsaa} \\

    \toprule
    {\textbf{Topic}} & {\textbf{Time}} &
    {\textbf{Topic}} & {\textbf{Time}} &
    {\textbf{Topic}} & {\textbf{Time}} \\
    \midrule
    \endfirsthead
    \toprule
    {\textbf{Topic}} & {\textbf{Time}} &
    {\textbf{Topic}} & {\textbf{Time}} &
    {\textbf{Topic}} & {\textbf{Time}} \\
    \midrule
    \endhead
    \bottomrule
    \multicolumn{6}{r}{{\tablename\ \thetable{} -- \emph{Continue}}} \\
    \endfoot
    \bottomrule
    \endlastfoot
"""

FOOTER = r"""

    \end{longtable}

\end{landscape}
    \restoregeometry % Reset to the original margins after landscape
\end{document}
"""

if __name__ == "__main__":
    batch_size = 3
    base_url = "https://www.youtube.com/watch?v=c3Cn4xYfxJY"
    topics = []
    for seq, line in enumerate(sys.stdin):
        line = line.rstrip()
        time, title = line.split(" ", 1)
        m = re.match(r"(\d+):(\d+):(\d+)", time)
        if m:
            hour = int(m.group(1))
            min = int(m.group(2))
            sec = int(m.group(3))
            t_secs = hour * 3600 + min * 60 + sec
            link = f"{base_url}\\&t={t_secs}"
            topics.append((title, time, link))
        else:
            topics.append((time, title, None))

    # print topics in table
    # print header
    print(HEADER)
    # print rows
    rows = len(topics) // batch_size
    remainder = len(topics) % batch_size
    for i in range(rows):
        for j in range(batch_size):
            tup = topics[i * batch_size + j]
            title, time, link = tup
            print(f"{title} & \\href{{{link}}}{{{time}}} ", end="")
            if j != batch_size - 1:
                print(" & ", end="")
        print(r"\\")

    if remainder != 0:
        for i in range(remainder):
            tup = topics[rows * batch_size + i]
            title, time, link = tup
            print(f"{title} & \\href{{{link}}}{{{time}}} ", end="")
            print(" & ", end="")
        for i in range(batch_size - remainder):
            print(" & ", end="")
            if i != batch_size - remainder - 1:
                print(" & ", end="")
        print(r"\\")

    print(FOOTER)