问Python搜索字符串并打印下一个x行数。

EN

#!/usr/bin/python3
import subprocess

# Works when I use open to read the file:

with open("test_file.txt", "r") as myfile:
    for items in myfile:
        if 'Cherry' in items.strip():
            for index in range(5):
               line = next(myfile)
               print (line.strip())

# Fails when I try to send the command through the shell

command = (subprocess.check_output(['cat', 'test_file.txt'], shell=False).decode('utf-8').splitlines())
for items in command:
    if 'Cherry' in items.strip():
        for index in range(5):
            line = next(command)

Dragonfruit

--- Fruits ---
Artichoke
Arugula

------------------------------------------------------------------------------------------

Traceback (most recent call last):
  File "/media/next_line.py", line 26, in <module>
    line = next(command)
TypeError: 'list' object is not an iterator

Process finished with exit code 1

--- Fruits ---
Apple
Banana
Blueberry
Cherry
Dragonfruit

--- Fruits ---
Artichoke
Arugula
Asparagus
Broccoli
Cabbage