I have a toml file that looks like

[default]
conf_path = "d"
prefix = "p"
suffix = "s"

I am turning this into a dict that looks like,

{default: {'conf_path': 'd', 'prefix': 'p', 'suffix': 's'}}

They key is default and the value is a dictionary. I want to check if default exists and for the dict in the value -- I want to check that the conf_path, prefix, suffix keys exist and that they all have a value that isn't '' or None.

This is what I have so far. I am having trouble checking the keys and values in default's value dict.

def get_config_path() -> str:
    """
    """
    default_path = os.path.expanduser(const.CONFIG_PATH)
    final_path = os.environ.get('CONFIG_PATH', default_path)
    return final_path


def check_toml():
    conf = Path(get_config_path())
    default_table = ['default', 'conf_path', 'prefix', 'suffix']
    if conf.exists():
        toml_dict = tomlkit.loads(Path(get_config_path()).read_text())
        d = toml_dict['default']
        for key, value in d.items():
            d = key
    else: d = 'File does not exist.'
    return d

How can I check that the three specific keys exist and they each have a value?

I don't know how to check that all three keys exist, they all have a value that isn't '' or None, and then say true if all of that is met.

I can do one no prob though

if toml_dict['default'].get('conf_path') not in (None, ''):

I was thinking use a list some how.

CodePudding user response：

if 'default' in conf and all(key in conf['default'] and conf['default'][key] for key in ('conf_path', 'prefix', 'suffix')):

This makes sure that the default element exists, and that each of the keys you're interested in has a Truthy value (I.E. not None or '').

CodePudding user response：

Open the toml file for reading and build your dictionary with tomlkit.

Then check for expected values like this:

import tomlkit

with open('foo.toml') as toml:
    _dict = tomlkit.loads(toml.read())
    if dd := _dict.get('default'):
        for key in 'conf_path', 'prefix', 'suffix':
            if not dd.get(key):
                print(f'Expected key "{key}" is missing')
    else:
        print('Missing default section')