Tuple type options parses every character as an individual value

[midnight-repo]

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Example Code

import typer
from typing import Tuple
from pathlib import Path
app = typer.Typer()

@app.command()
def useless(): # at least two commands are needed for typer to run properly
    pass

@app.command()
def test(tupl: Tuple[Path] = typer.Option(None, '--tuple', '-t'), help='Tuple values'):

    for x in tupl:
        print(x)

app()

# RUN
# python3 app.py test -t AAA BBBBB

# PROBLEM
# should be interpreted as tuple("AAA", "BBBBB") but is interpreted as tuple("A", "A", "A")

# ERROR with :  python3 app.py test -t AAA BBBBB
# Error: Invalid value for '--tuple' / '-t': 1 values are required, but 3 were given.

# ERROR with : python3 app.py test -t A B
# Error: Got unexpected extra argument (B)

Description

I am trying to use a Tuple type option which is supposed to work as mentioned below :
python3 app.py --tuple value1 value2
This should be interpreted as tuple('value1', 'value2')
BUT
The app seems to interpret the tuple as being the individual characters of value1: tuple('v', 'a', 'l', 'u', 'e', ''1') and throws an error
Error: Invalid value for '--tuple' / '-t': 1 values are required, but 6 were given.

Operating System

Linux

Operating System Details

Ubuntu 20.04 LTS

Typer Version

0.4.0

Python Version

3.8.10

Additional Context

No response

[wcastello]

Your test should be:

def test(tupl: Tuple[Path, Path] = typer.Option(None, '--tuple', '-t'), help='Tuple values'):

https://typer.tiangolo.com/tutorial/multiple-values/options-with-multiple-values/