def __init__(self, package, version):
        """Construct a new requirement.

        :param package: the package name.
        :param version: a semver compatible version specification.
        """
        self.package = package
        self.version = version
        if self.version and not re.match(r"[<=>~]", version[:2]):
            self.version = "=={}".format(self.version)
def email(self):
        """
        Shortcut property for finding the e-mail address or bot URL.
        """
        if "profile" in self._raw:
            email = self._raw["profile"].get("email")
        elif "bot_url" in self._raw:
            email = self._raw["bot_url"]
        else:
            email = None
        if not email:
            logging.debug("No email found for %s", self._raw.get("name"))
        return email