wed.utils.argparse_utils module

class wed.utils.argparse_utils.DictParamProcessor(option_strings, dest, nargs=None, const=None, default=None, type=None, choices=None, required=False, help=None, metavar=None)

Bases: argparse.Action

Receive an argument as a dictionary.

Raises

ValueError – You must give one argument for each one keyword.

Examples

>>> import argparse
>>> from wed.utils import DictParamProcessor
>>> parser = argparse.ArgumentParser()
>>> parser.add_argument("--dict_params", action=DictParamProcessor)
>>> args = parser.parse_args(args=["--dict_params", "foo = [a, b, c]", "--dict_params", "bar=d"])
>>> args.dict_params
{'foo': ['a', 'b', 'c'], 'bar': 'd'}
>>> args = parser.parse_args(args=["--dict_params", "foo=a, bar=b"])
ValueError: too many values to unpack (expected 2)

Note

If you run from the command line, execute as follows:

$ python app.py --dict_params "foo = [a, b, c]" --dict_params bar=c