preobrazovator.py

from collections import defaultdict

pid_to_command_line = {}

list_of_all_processes = []

import csv

field_names = None

with open('task5.csv', 'r') as csv_file:
    csv_reader = csv.DictReader(csv_file)
    field_names = csv_reader.fieldnames

    seen_pids = []


    for row in csv_reader:
        pid_to_command_line[row['process.pid']] = row['process.command_line']
        list_of_all_processes.append(row)

for process in list_of_all_processes:
    process['process.parent.command_line'] = pid_to_command_line.get( process['process.parent.pid'] )

field_names.append( 'process.parent.command_line' )

with open('task5_result.csv', 'w', newline='') as csv_file:
    # Create a DictWriter
    csv_writer = csv.DictWriter(csv_file, fieldnames=field_names)

    # Write the header
    csv_writer.writeheader()

    # Write the data

    csv_writer.writerows(list_of_all_processes)