problem in output of a snippet code

[akbarza]

hi
assume the below snippet code(the code address is in the docstring of the code) :

 '''
from:https://www.knowledgehut.com/blog/programming/sys-argv-python-
examples#what-is-%22sys.%C2%A0argv%C2%A0[1]%22?-how-does%C2%A0it-work?%C2%A0
'''

import getopt
import sys
 
first =""
last =""
argv = sys.argv[1:]
try:
    options, args = getopt.getopt(argv, "f:l:",
                               ["first =",
                                "last ="])
except:
    print("Error Message ")
 
for name, value in options:
    if name in ['-f', '--first']:
        first = value
    elif name in ['-l', '--last']:
        last = value
 
print(first + " " + last)

# in cmd write: python getopt_module.py -f Knowledge -l Hut
# or
# in cmd write: python getopt_module.py --first Knowledge --last Hut
#### but the last line does not show anything in output, why?

after saving this file as getopt_module.py, if I write in cmd:

python getopt_module.py -f Knowledge -l Hut

The output will be:

Output:
Knowledge Hut

but if write in cmd:

python getopt_module.py --first Knowledge --last Hut

then nothing will be in the output. why?
thanks