Multi Multiple Import

import_stuff.py

PARSERS = [('pkg_resources', 'parse_version'), ('distutils.version', 'StrictVersion')]
def get_parse_fn():
    for parser_module, parser in PARSERS:
        try:
            return getattr(importlib.import_module(parser_module), 'parser')
        except ImportError:
            pass
    raise Exception("Couldn't find a thing to do the thing")