def prepare_files(self):
        """Get files from data dump."""
        # Prepare files
        files = {}
        for f in self.data['files']:
            k = f['full_name']
            if k not in files:
                files[k] = []
            files[k].append(f)

        # Sort versions
        for k in files.keys():
            files[k].sort(key=lambda x: x['version'])

        self.files = files
Get files from data dump.