[SOLVED] Python: Argument requires 3 arguments (1 given)

I'm trying to move toward python now. Working on bindings for my c library I've been working on. the prompt_input_getline() function I'm trying to call takes a single string parameter in the c code. I just cannot for the life of me sort this out. Been googling awhile. Here is the c function for reference.

char *
prompt_input_getline(const char * prompt)
{
  assert(prompt);
  
  // declare & initialize
  char * retval = NULL;

  // print & get input
  prompt_print(prompt);
  retval = getline_stdin_mem_alloc();
  if (retval) {
    no_more_newline(retval);
  }

  return(retval);
}

This is my current python testing. Maybe I'm trying something more advanced than I'm ready for.

#!/usr/bin/python3
# python bindings for libjmgeneral.so

import ctypes
from ctypes import *
import pathlib

lib = pathlib.Path().absolute() / "/usr/local/lib/libjmgeneral.so"
libjmgen_lib = ctypes.CDLL(lib)

def random_gen(a, b):
	return libjmgen_lib.random_gen(a, b)
  
def clear_ptr(a):
  libjmgen_lib.clear_ptr(a)

def prompt_input_getline(a):
  libjmgen_lib.prompt_input_getline.argtypes = [c_char_p,c_char_p,c_char_p]
  libjmgen_lib.prompt_input_getline.restypes = c_char_p
  b_string = a.encode('utf-8')
  print(libjmgen_lib.prompt_input_getline("lol"))
  
prompt_input_getline("lol")

Found it. I don't know if it's ideal but I got my result. Now to free the memory.

#!/usr/bin/python3
# python bindings for libjmgeneral.so

import ctypes
from ctypes import *
import pathlib

lib = pathlib.Path().absolute() / "/usr/local/lib/libjmgeneral.so"
libjmgen_lib = ctypes.CDLL(lib)

def random_gen(a, b):
	return libjmgen_lib.random_gen(a, b)
  
def clear_ptr(a):
  libjmgen_lib.clear_ptr(a)

def prompt_input_getline(a):
  func_call = libjmgen_lib.prompt_input_getline
  func_call.argtypes = [c_char_p]
  func_call.restype = c_char_p
  result = libjmgen_lib.prompt_input_getline(a.encode('utf-8'))
  return result.decode('utf-8')
  #return(libjmgen_lib.prompt_input_getline(b_string))
  
y = prompt_input_getline("lol")
print(y)