“Standard” way of creating config file suitable for Python and Java together

My application was 100% developed in pure Python. I found very useful and easy to create a config file with .py extension and than simply load it in every code. Something like this:

ENV = 'Dev'
def get_settings():
    return eval(ENV)

class Dev():
    ''' Development Settings '''

    # AWS settings
    aws_key = 'xxxxxxxxxxxxx'
    aws_secret = 'xxxxxxxxxxxxxxxxx'

    # S3 settings
    s3_bucket = 'xxxxxxxxxx'
    ...
    ...

And than in my code I just import this file and use settings, this way I have one file that easy to manage and that contains all aprameters I need.

Howewer recently I had to move part of my code to Java. And now I’m struggling with configurations.

Question:

What are the “standard” way to create a config that would be easily accessible from both languages? (My Java skills are very limited, if you can five me a brief example in Java it would be great)

Best answer

Have a look at ConfigParser in Python

The syntax on this file looks like this:

[Section]
my_option = 12.2
my_option2 = other_value

[Section2]
my_voption = my_value

You read it this way:

import ConfigParser

config = ConfigParser.ConfigParser()
config.read('example.cfg')
config.getfloat('Section', 'my_option') # returns 12.2

It works for a couple of types and if you can’t find a type, you can use the eval function in Python. Finding an equivalent to Java shouldn’t be too hard. Or even parsing this file using Java shouldn’t be too hard.