Problems with Python argparse liberary (order of variables, default parameters and so on)

Question

I want to give my script named console parameters in any order, but my code won't work as it should.

import argparse, sys

parser = argparse.ArgumentParser()
parser.add_argument('n', help="some integer which is needed", type=int, default=100)
parser.add_argument('b', help="a yes or no question (default yes)", type=str, default=True)
args=parser.parse_args()
print(args)

I want to be able to do all of the following things which are all failing in their own unique annoying ways:

• python myscript.py n=85
• python myscript.py b=No
• python myscript.py b=No n=47

all result in an invalid int error and it is driving me up the wall. Why can't I just tell the script what n and b are in the order I like? Why can't I give the value of a parameter with its name? Why are my default values totally ignored? Also python myscript.py 7458 b=yes

is also not much better it prints Namespace(n=7458, b='b=yes')

so why can't I say something like n=7458, why is b= not understood to be not part of the b value?