Search string in mutliple .gz files

[SARAOOF]

Hi,
Kindly your support to provide python script to search given strings (Number, Text etc.) from multiple ".gz" text files

Directory contains multiple".gz" files date wise

Output:
/bkup/TC/XYZ/20210818

File Names: 
A_7235818.csv.gz
A_7235819.csv.gz
.
.

Output:
Content of sample file.
38486,22625,XYZ_06_0_20210817204446-3997
88279,77617,XYZ_06_0_20210817204846-3998

Getting error while running below Code.

import glob
import gzip

matched_lines = []

ZIPFILES='/bkup/TC/XYZ/20210818/*.gz'

grep = raw_input('Enter Search: ')

filelist = glob.glob(ZIPFILES)
for gzfile in filelist:
     #print("#Starting " + gzfile)  #if you want to know which file is being processed
    with gzip.open( gzfile, 'rb') as f:
#    grep = raw_input('Enter Search: ')
    for line in f: # read file line by line
        if grep in line: # search for string in each line
            matched_lines.append(line) # keep a list of matched lines

file_content = ''.join(matched_lines) # join the matched lines

print(file_content)

Output:

Error:
$ ./srch6.py
  File "./srch6.py", line 17
    for line in f: # read file line by line
      ^
IndentationError: expected an indented block

Larz60+ write Aug-18-2021, 11:20 AM:
Please post all code, output and errors (it it's entirety) between their respective tags. Refer to BBCode help topic on how to post. Use the "Preview Post" button to make sure the code is presented as you expect before hitting the "Post Reply/Thread" button.
fixed for you this time, please use bbcode tags on future posts