Python script to parse dumped config of Realtek NVMe Enclosures into usable config file

cfgdumpparse.py

# Usage ./python3 cfgdumpparse.py mydumpedconfig.txt
# Warning: This is not a "end user" tool.
# Warning: Verify output by hand, it may include unwanted values.
# Warning: This tool may produce an incorrect config that can brick your device.

import re
import sys
try:
	file = sys.argv[1]
	with open(file, 'r') as cfg_file:
		config_dump = cfg_file.read()
except IndexError:
	print("No file specified")
	sys.exit(1)
except FileNotFoundError:
	print(f"File {file} not found")
	sys.exit(1)
for line in config_dump.splitlines():
    k_v_match = re.match(r'^([A-Z0-9_]+)\s*:\s*(.*)$', line)
    if k_v_match:
        key = k_v_match.group(1)
        value = k_v_match.group(2)
        if value != 'n/a':
            print(f"{key} = {value}")