[capink]

OK, I am testing this now using calibre-debug -e script.py

def test():
    from calibre.library import db as DB
    from calibre.ebooks.metadata.book.formatter import SafeFormat
    db = DB().new_api
    book_id = list(db.all_book_ids())[0]
    mi = db.get_proxy_metadata(book_id)
    TEMPLATE_ERROR = 'TEMPLATE_ERROR: '
    my_globals = {'path_to_file': '/home/user', 'b': 2}
    template = "program: globals(path_to_file)"
    template_output = SafeFormat().safe_format(template, mi, TEMPLATE_ERROR, mi, global_vars=my_globals)
    print('debug: template_output: ({})'.format(template_output))
        

test()

the output is empty:

debug: template_output: ()

I don't know what I am doing wrong?