当输出以棒状方式出现在python中时，如何解析特定的输出(如行)？

Question

当我运行下面的代码时，输出就是这样的。我需要输出在行中显示和，只显示标题下的值。

期望产出：

caption : 3PAR
          3PAR

实际产出：

('Caption                          DeviceID             Model                            Partitions  Size         \r\r\n3PARdata VV SCSI Disk Device     \\\\.\\PHYSICALDRIVE19  3PARdata VV SCSI Disk Device     0           1069286400   \r\r\nHP P2000 G3 FC SCSI Disk Device  \\\\.\\PHYSICALDRIVE1   HP P2000 G3 FC SCSI Disk Device  1           49993251840  \r\r\nHP HSV360 SCSI Disk Device       \\\\.\\PHYSICALDRIVE7   HP HSV360 SCSI Disk Device       4           1069286400   \r\r\nHP HSV360 SCSI Disk Device       \\\\.\\PHYSICALDRIVE27  HP HSV360 SCSI Disk Device       0           1069286400   \r\r\nHP HSV360 SCSI Disk Device       \\\\.\\PHYSICALDRIVE5   HP HSV360 SCSI Disk Device       0           1069286400   \r\r\nHP P2000 G3 FC SCSI Disk Device  \\\\.\\PHYSICALDRIVE23  HP P2000 G3 FC SCSI Disk Device  1           49993251840  \r\r\n3PARdata VV SCSI Disk Device     \\\\.\\PHYSICALDRIVE13  3PARdata 

代码：

p5=subprocess.Popen("rsh -l Administrator 10.10.11.37 \"wmic diskdrive list brief\"",stdout=subprocess.PIPE, shell=True)


result = p5.communicate()
status = p5.wait()
print(result),

Answer 1

如果只希望Caption下的值，那么使用re在Disk Device后的空格上拆分，这在所有标题行中都很常见：

result = """Caption                          DeviceID             Model                            Partitions  Size         \r\r\n3PARdata VV SCSI Disk Device     \\\\.\\PHYSICALDRIVE19  3PARdata VV SCSI Disk Device     0           1069286400   \r\r\nHP P2000 G3 FC SCSI Disk Device  \\\\.\\PHYSICALDRIVE1   HP P2000 G3 FC SCSI Disk Device  1           49993251840  \r\r\nHP HSV360 SCSI Disk Device       \\\\.\\PHYSICALDRIVE7   HP HSV360 SCSI Disk Device       4           1069286400   \r\r\nHP HSV360 SCSI Disk Device       \\\\.\\PHYSICALDRIVE27  HP HSV360 SCSI Disk Device       0           1069286400   \r\r\nHP HSV360 SCSI Disk Device       \\\\.\\PHYSICALDRIVE5   HP HSV360 SCSI Disk Device       0           1069286400   \r\r\nHP P2000 G3 FC SCSI Disk Device  \\\\.\\PHYSICALDRIVE23  HP P2000 G3 FC SCSI Disk Device  1           49993251840  \r\r\n3PARdata VV SCSI Disk Device     \\\\.\\PHYSICALDRIVE13  3PARdata"""
import re
spl = result.splitlines()
print(spl[0].split()[0].rstrip())
for line in spl[1:]:
    if line:
        print(re.split("(?<=Disk Device)\s+",line,1)[0])

Caption
3PARdata VV SCSI Disk Device
HP P2000 G3 FC SCSI Disk Device
HP HSV360 SCSI Disk Device
HP HSV360 SCSI Disk Device
HP HSV360 SCSI Disk Device
HP P2000 G3 FC SCSI Disk Device
3PARdata VV SCSI Disk Device