Log file CLI analyzer Python app example

# log lines
# ip,site,status_code

# Store some data
log_lines = []


# Create the menu
#
# Menu should be able to load a log file and display some stats
# if there is nothing laoded show an error and reprompt

exit = False
while not exit:
    print("1: Load file")
    print("2: Show num lines")
    print("3: Show errors by status message")
    print("4: Exit")
    opt = input("Enter option from above")

    if opt == 1:
        file_name = input("Enter file name:")
        # can do some check if file is valid or not
        with open(file_name) as f:
            log_lines = f.readlines()
    elif opt == 2:
        print(f"num log lines={len(log_lines)}")
    elif opt == 3:
        status_codes = {}
        for line in log_lines:
            line_data = line.split(",")
            if line_data[2] not in status_codes:
                status_codes[line_data[2]] = 1
            else:
                status_codes[line_data[2]] += 1
        print("Status codes counts")
        for s_code in status_codes:
            print(f"Code={s_code} Count={status_codes[s_code]}")
    elif opt == 4:
        exit = True
    else:
        print("Invalid option, please ree-nter\n")