Consider exporting argparse error type #46
Description
It might be useful to provide some kind of error classes as part of this package.
For example, I use code like this:
from argparse import ArgumentError, ArgumentParser
def file_path(x: str):
d = Path(x)
if d.is_dir:
raise ArgumentError(f"{d} is a directory")
return d
parser = ArgumentParser()
parser.add_argument('output_file', type=file_path, help="Path to output file")
parser.parse_args()I would like to use TAP for this, so would be nice to import all the classes I need from the single package, rather than still importing error classes from argparse, or writing my own each time.
The easiest would probably be to just expose the classes from argparse.