Search string in mutliple .gz files

[SARAOOF]

What's the reason for reimplementing zgrep?

Reimplementing it in Python is better like this:

import subprocess


def zgrep(file, pattern):
    proc = subprocess.Popen(["zgrep", pattern, file], stdout=subprocess.PIPE)
    for line in proc.stdout:
        yield line.decode(errors="replace")

Code, which utilizes zgrep, does not run on Windows.
In addition, it adds a dependency to Python + it's not Python.

The next could be, why to implement cat, sort, awk, sed, ... if we already have them on our machines?
The increase of non-pythonic solutions: https://github.com/arunsivaramanneo/GPU-...wer.py#L24

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Output:
Output:
python3 ./srch.py path_to_directory matching_text 

Yes, what could this mean?
Have you tried python3 ./srch.py --help

It's the normal way how command line tools are controlled. They take options, arguments and parameters.
If you want to list a directory on Linux, you could type: ls -l /

The -l is an option and the / is an argument and points to the target directory which ls should show.

I have tried with python3 still same output - Can you please provide complete code to execute from my end?

$ python3 ./srch.py
python3 ./srch.py path_to_directory matching_text