_compat.py

import six
from six.moves import configparser

NO_FALLBACK = object()


def configparser_get(conf, section, name=None, fallback=NO_FALLBACK):
    if name is None:
        try:
            if six.PY3:
                return conf[section]
            elif section not in conf.sections():
                raise configparser.NoSectionError(section)
            return dict(conf.items(section))
        except (configparser.NoSectionError, KeyError):
            if fallback is not NO_FALLBACK:
                return fallback
            raise

    if six.PY3:
        if fallback is not NO_FALLBACK:
            return conf.get(section, name, fallback=fallback)
        return conf.get(section, name)
    else:
        try:
            return conf.get(section, name)
        except configparser.NoOptionError:
            if fallback is not NO_FALLBACK:
                return fallback
            raise