Checks that you only pass one argument to a full keyword optional arguments method

check_one_arg_true.py

import inspect

def task(id_a=False, id_b=False, name=False, email=False, phone=False):
	frame = inspect.currentframe() 
  
	args, _, _, values = inspect.getargvalues(frame)

	if len([arg for arg in args if values[arg]]) != 1: # Checks that you only pass one argument
		raise ValueError("Need only one argument")