makemessages.py 文件源码

def write_pot_file(potfile, msgs):
    """
    Write the :param potfile: POT file with the :param msgs: contents,
    previously making sure its format is valid.
    """
    pot_lines = msgs.splitlines()
    if os.path.exists(potfile):
        # Strip the header
        lines = dropwhile(len, pot_lines)
    else:
        lines = []
        found, header_read = False, False
        for line in pot_lines:
            if not found and not header_read:
                found = True
                line = line.replace('charset=CHARSET', 'charset=UTF-8')
            if not line and not found:
                header_read = True
            lines.append(line)
    msgs = '\n'.join(lines)
    with io.open(potfile, 'a', encoding='utf-8') as fp:
        fp.write(msgs)