Generate PDF files

pres.py

#!/usr/bin/env python3
import os
file_name = 'template.tex'
with open(file_name, "w") as file_object:
    file_object.write('\documentclass{beamer}\n')
    file_object.write('\\usetheme{focus}\n')
    file_object.write('\\begin{document}\n')

images = os.listdir('img')
text = []
for image in images:
    silde_text = '''
  \\begin{frame}{%s}
      \\begin{center}
          \includegraphics[width=311px,height=200pt]{"img/%s"}

      \end{center}
  \end{frame}
  ''' % (image.rsplit('.',1)[0], image)
    text.append(silde_text)

with open(file_name, "a") as file_object:
    for item in text:
        file_object.write(item)

with open(file_name, "a") as file_object:
    file_object.write(''''
      \\begin{frame}[focus]
    Any Questions?
    \end{frame}

\\begin{frame}[focus]
    Thank You.
\end{frame}

\end{document}
                      ''')
os.system(f'pdflatex {file_name}')
os.system(f'zathura {file_name.rsplit(".",1)[0]}.pdf & ')