get age of process in python

process_age.py

#!/usr/bin/python3
# get process age in second
import psutil
import time
import sys
import datetime
def get_process_age(pid):
    try:
        # Get the process object
        process = psutil.Process(pid)
        
        # Get the creation time of the process
        creation_time = process.create_time()
        
        # Get the current time
        current_time = time.time()
        
        # Calculate the age of the process in seconds
        age_in_seconds = current_time - creation_time
        
        # Convert age to a more readable format (e.g., seconds, minutes, hours)
        age = str(datetime.timedelta(seconds=age_in_seconds))


        return age
    except psutil.NoSuchProcess:
        return None  # Process does not exist
    except Exception as e:
        return str(e)  # Handle other exceptions

# # Example usage
# pid = 1234  # Replace with the actual PID of the process you want to check
# age = get_process_age(pid)
# if main
if __name__ == "__main__":
    pid = sys.argv[1]
    age = get_process_age(int(pid))
    if age is not None:
        print(f"Process with PID {pid} is {age} seconds old.")
    else:
        print(f"Process with PID {pid} does not exist.")