Generate document with TOML and MAKO template.

toml2tmpl.py

#!python3
# coding: utf-8

import sys
from os import path
import tomli as toml
from mako.template import Template

def main():
    if len(sys.argv) != 3:
        sys.exit('Usage: toml2tmpl.py <toml file> <mako template file>')
    if not sys.argv[1].endswith('.toml') or not path.isfile(sys.argv[1]):
        sys.exit('ERROR: The first argument must be a valid file with .toml extension')
    if not sys.argv[2].endswith('.mako') or not path.isfile(sys.argv[2]):
        sys.exit('ERROR: The second argument must be a valid file with .mako extension')

    
    data = toml.load(open(sys.argv[1], 'rb'))
    tmpl = Template(filename=sys.argv[2], output_encoding='utf-8', encoding_errors='replace')
    
    content = tmpl.render(**data)
    output_filename = path.splitext(sys.argv[2])[0]
    open(output_filename, 'wb').write(content)
    
if __name__ == '__main__':
    main()