a problem with @click.option while passing "prompt" and "type" together

[kianooshsanatkar]

I pass both "prompt=True" and "type=(str, str)" together as @click.option and it's fine while I'm using the option but when I want to use the prompt feature - if I don't provide the parameter - then as expected it would ask for the parameter by defining a prompt string. the problem is it counts any character as an input value.

for example:

@click.command()
@click.option(
    "--replace",
    "-r",
    help="for replacement write the phrase you want to be replaced and then write the substitutional phrase",
    type=(str, str),
    prompt=True
)
def main(replace):
    click.echo(f"you want to replace {replace[0]} with {replace[1]}")
    
    
    
if __name__ == "__main__":
    main()

the result in the command line would be:

>>> python app.py
>>> Replace: str1 str2
Error: 2 values are required, but 9 were given.
>>> Replace:

I want to pass two string values. first is "str1" and the second is "str2" which raises an error. Is there any specific character that I have to use for declaration and separation? or it's a problem with the library itself?

Also, I ran the code on both Windows and Linux.

full specs:
os: windows 10
python: 3.10.6
click: 8.0.3 & 8.1.7

os: linux
python: 3.10.11
click: 8.1.7