Question

我正在尝试格式化以下Python 3.x脚本的输出。这是我要调用的函数：

def daily_backup():
    # Header for /var/log/me/rsync_backup.log
    print(" ")
    print("#" * 75)
    print(get_dt())
    print("#" * 75)
    print(" ")

    # Update timestamp on backup file, notify user that backup has started
    Path("/var/log/me/rsync_backup_ran").touch()
    notify_send("Daily backup started","%s" % get_dt(),"info")

    # Every week, start over with current files
    if today_name != "Sunday":
        rsync_command = "rsync -avbH --stats --exclude-from=/home/me/bin/rsync_backup.ecl"
    else:
        rsync_command = "rsync -avH --stats --exclude-from=/home/me/bin/rsync_backup.ecl " \
                        "--delete --delete-excluded"


    # System configs, crontabs, installed software lists
    INSTALLED = "/home/me/.config/installed"
    if not os.path.isdir(INSTALLED):
        os.mkdir(INSTALLED)
    os.system("dpkg --get-selections > %s/installed-software" % INSTALLED)
    os.system("ls /home/me/.local/share/flatpak/app > %s/installed-flatpaks" % INSTALLED)
    os.system("rsync -avb /etc/apt/sources.list.d %s" % INSTALLED)
    os.system("rsync -avb /var/spool/cron %s" % INSTALLED)
    os.system("rsync -avb /etc/libvirt/qemu %s" % INSTALLED)

    # My data
    for i in range(3):
        cmd_format = "%s %s %s/%s/daily"
        cmd_info = (rsync_command, backup_paths[i], backup_root, backup_folders[i])
        os.system(cmd_format % cmd_info)

    notify_send("Daily backup ended","%s" % get_dt(),"info")

daily_backup()

该脚本有效，除了我创建的标头（在函数顶部）直到所有os.system调用之后才打印出来。这是正常行为吗？我该如何纠正？

Answer 1

stdout可能有问题。尝试强制执行此SO previous post

Python输出未按顺序重定向

1 个答案: