Problems with call to pandoc in python. Providing "-V args" are not working

Question

When I call to pandoc with "-V args" like for example: '-V title="Wartość"' in Python script, I get output without title..:(

Example: Manually typed command to pandoca(in terminal):

/usr/bin/pandoc  /home/user/program/content.md -V title="Wartość" 
-V authors="Jerry" --output=/home/user/program/outputs/book_22.pdf

It works :) output file: pandoc output when use manually pandoc in the terminal

but when I run the same command in python(call to pandoc):

 subprocess.call(['/usr/bin/pandoc', '/home/user/program/content.md', '-V title="Wartość", -V authors="Jerry" ', '--output=/home/user/program/outputs/book_33.pdf'])

output file: pandoc output when I call to him from python script

how to fix it?

Answer 1

Your assumption that you are running the "same command" in Python is incorrect. You have combined arguments into a single string when they should be separate.

subprocess.call(['/usr/bin/pandoc', '/home/user/program/content.md',
    '-V',  'title="Wartość"', '-V', 'authors="Jerry"', 
    '--output=/home/user/program/outputs/book_33.pdf'])

An easy way to convert a command line to a list suitable for subprocess.call() is shlex.split().