xpip install xontrib-dalias
# or
xpip install 'xontrib-dalias[dict,yaml]'  # With extra decorators.

xontrib load dalias

$(@lines ls /)
# ['/bin', '/etc', '/home']

$(@json echo '{"a":1}')  # Try with `curl` ;)
# dict({"a":1})

docker inspect @($(@json docker ps --format json)['ID'])
# Container info
$(@path which -s xonsh)
# Path('/path/to/xonsh')

$(@path which -s xonsh).parent
# Path('/path/to')
aliases['ydig'] = '@yaml dig +yaml'  # Update `dig` via `brew install bind` to have `+yaml`.
y = $(ydig google.com)
y[0]['type']
# 'MESSAGE'

$(echo '{"a":1}' | @json cat)
# dict({"a":1})

aliases['@j'] = '@json cat'
$(echo '{"a":1}' | @j)
# dict({"a":1})

$RAISE_SUBPROC_ERROR = True  # General environment.
if ![@noerr ls nononofile]:  # Do not raise exception in case of error.
    echo file