I'm trying to set up a dictionary as optional argument (using argparse); the following line is what I have so far:
parser.add_argument('-i','--image', type=dict, help='Generate an image map from the input file (syntax: {\'name\': <name>, \'voids\': \'#08080808\', \'0\': \'#00ff00ff\', \'100%%\': \'#ff00ff00\'}).')
But running the script:
$ ./script.py -i {'name': 'img.png','voids': '#00ff00ff','0': '#ff00ff00','100%': '#f80654ff'}
script.py: error: argument -i/--image: invalid dict value: '{name:'
Even though, inside the interpreter,
>>> a={'name': 'img.png','voids': '#00ff00ff','0': '#ff00ff00','100%': '#f80654ff'}
works just fine.
So how should I pass the argument instead? Thanks in advance.
Necroing this: json.loads
works here, too. It doesn't seem too dirty.
import json
import argparse
test = '{"name": "img.png","voids": "#00ff00ff","0": "#ff00ff00","100%": "#f80654ff"}'
parser = argparse.ArgumentParser()
parser.add_argument('-i', '--input', type=json.loads)
args = parser.parse_args(['-i', test])
print(args.input)
Returns:
{u'0': u'#ff00ff00', u'100%': u'#f80654ff', u'voids': u'#00ff00ff', u'name': u'img.png'}