msgstr_i = [i for i, line in enumerate(chunk_lines) if line.startswith('msgstr')]

        if (

            chunk_lines[0].startswith('msgid') and

            msgstr_i and

            all(line.endswith(' ""') for line in chunk_lines[msgstr_i[0]:])

        ):  # skip translation chunks that doesn't have any actual translations

            continue

        chunks.append('\n'.join(chunk_lines) + '\n')

    return '\n'.join(chunks)

def _normalize_po_file(po_file, merge_pot_file=None, strip=False):

    if merge_pot_file:

                '--update', po_file, '-q', merge_pot_file])

    if strip:

        po_tmp = po_file + '.tmp'

        with open(po_file, 'r') as src, open(po_tmp, 'w') as dest:

            raw_content = src.read()

            normalized_content = _normalize_po(raw_content)

            dest.write(normalized_content)

        os.rename(po_tmp, po_file)

def _normalized_diff(file1, file2, merge_pot_file=None, strip=False):

    # Create temporary copies of both files

    temp1 = tempfile.NamedTemporaryFile(prefix=os.path.basename(file1))