def _add_file(self, name, data, secnum=0):
if len(data) > 0:
section = self._sections[secnum]
offset = section.tell()
section.write(data)
else:
offset = 0
self._directory.append(DirectoryEntry(name, secnum, offset, len(data)))
def _add_folder(self, name, offset=0, size=0):
if not name.endswith('/'):
name += '/'
self._directory.append(DirectoryEntry(name, 0, offset, size))