example of calling dimus' gnparser from python3

libgnparser.py

#!/usr/env python
""" Example of wrapping a call to gnparser from python
See https://gitlab.com/gogna/gnparser#command-line

Adapted based on instructions on
    https://medium.com/learning-the-go-programming-language/calling-go-functions-from-other-languages-4c7d8bcc69bf
"""
import ctypes
import json
lib = ctypes.cdll.LoadLibrary("./libgnparser.so")
lib.ParseToString.argtypes = [ctypes.c_char_p, ctypes.c_char_p]
lib.ParseToString.restype = ctypes.c_char_p

_compact_arg = ctypes.c_char_p("compact".encode('utf-8'))

def name_to_dict(name):
    cn = ctypes.c_char_p(name.encode('utf-8'))
    x = lib.ParseToString(cn, _compact_arg).decode('utf-8')
    return json.loads(x)


if __name__ == '__main__':
    import sys
    for arg in sys.argv[1:]:
        x = name_to_dict(arg)
        print(json.dumps(x, ensure_ascii=True, indent=2))