https://click.palletsprojects.com/en/7.x/arguments/
Arguments類似 options,但他的位置是固定的
Basic Arguments
@click.command()
@click.argument('filename')
def touch(filename):
"""Print FILENAME."""
click.echo(filename)
Variadic Arguments
@click.command()
@click.argument('src', nargs=-1)
@click.argument('dst', nargs=1)
def copy(src, dst):
"""Move file SRC to DST."""
for fn in src:
click.echo('move %s to folder %s' % (fn, dst))
$ copy foo.txt bar.txt my_folder
move foo.txt to folder my_folder
move bar.txt to folder my_folder
File Arguments
@click.command()
@click.argument('input', type=click.File('rb'))
@click.argument('output', type=click.File('wb'))
def inout(input, output):
"""Copy contents of INPUT to OUTPUT."""
while True:
chunk = input.read(1024)
if not chunk:
break
output.write(chunk)
$ inout - hello.txt
hello
^D
$ inout hello.txt -
hello