holland divide-by-zero error

gistfile1.txt

class CheckForSpaceHook(BackupHook):
    """Check for available space before starting a backup"""
    job_info = None

    def execute(self, job, event):
        """Estimate the available space from the plugin and abort if
        there does not appear to be enought to successfully complete this
        backup based on the estimate.

        :raises: BackupError if estimated_space > available_space
        """
        if event == 'after-backup':
            LOG.info("+ Final backup size %s", format_bytes(job.store.size()))
            LOG.info("+ %.2f%% of estimated size %s ",
                     100.0*job.store.size() /
                     parse_bytes(self.job_info['estimated-size']),
                     self.job_info['estimated-size'])
            LOG.info("+ Suggested estimated-size-factor = %.2f",
                     float(job.store.size()) /
                     parse_bytes(self.job_info['estimated-size']))
            return