Convert a channel into a normalized repo name including.

        Channels are assumed in normalized url form.

def _set_repo_urls_from_channels(self, channels):
        """
        Convert a channel into a normalized repo name including.

        Channels are assumed in normalized url form.
        """
        repos = []
        sys_platform = self._conda_api.get_platform()

        for channel in channels:
            url = '{0}/{1}/repodata.json.bz2'.format(channel, sys_platform)
            repos.append(url)

        return repos