def coerce(cls, string):
        """Create a :class:`Requirement` object from a given package spec."""
        match = re.match(cls.spec_regex, string)
        if not match:
            raise InvalidRequirementSpecError("could not parse requirement")
        package = match.group(1)
        if all(match.group(2, 3)):
            version = "".join(match.group(2, 3))
        else:
            version = None
        return cls(package, version)
def test_question_reviewers_not_needed_if_num_suggestions_less_max(self):
        stats = suggestion_services.get_community_contribution_stats()
        stats.question_suggestion_count = 1
        stats.question_reviewer_count = 2
        config_services.set_property(
            'committer_id', 'max_number_of_suggestions_per_reviewer', 1)

        reviewers_are_needed = stats.are_question_reviewers_needed()

        self.assertFalse(reviewers_are_needed)