CODEWITHSUNDEEP
pythonconfigparser
mathieu
mathieu

Reputation: 3174

specifying the same option multiple times with ConfigParser

I would like to read a configuration file with the python ConfigParser module:

[asection]
option_a = first_value
option_a = second_value

And I want to be able to get the list of values specified for option 'option_a'. I tried the obvious following:

test = """[asection]
option_a = first_value
option_a = second_value
"""
import ConfigParser, StringIO
f = StringIO.StringIO(test)
parser = ConfigParser.ConfigParser()
parser.readfp(f)
print parser.items()

Which outputs:

[('option_a', 'second_value')]

While I was hoping for:

[('option_a', 'first_value'), ('option_a', 'second_value')]

Or, even better:

[('option_a', ['first_value', 'second_value'])]

Is there a way to do this with ConfigParser ? Another idea ?

Upvotes: 6

Views: 2156

Answers (1)

Ira
Ira

Reputation: 36

It seems that it is possible to read multiple options for the same key, this may help: How to ConfigParse a file keeping multiple values for identical keys?

Here is a final code from this link (I tested on python 3.8):

from collections import OrderedDict
from configparser import ConfigParser
class ConfigParserMultiValues(OrderedDict):
    def __setitem__(self, key, value):
        if key in self and isinstance(value, list):
            self[key].extend(value)
        else:
            super().__setitem__(key, value)

    @staticmethod
    def getlist(value):
        return value.splitlines()

config = ConfigParser(strict=False, empty_lines_in_values=False, dict_type=ConfigParserMultiValues, converters={"list": ConfigParserMultiValues.getlist})
config.read(["test.ini"])
values = config.getlist("test", "foo")
print(values)

For test.ini file with content:

[test]
foo = value1
foo = value2
xxx = yyy

The output is:

['value1', 'value2']

Upvotes: 2

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