Reference library

Automation & scripting

CLI tools, scheduled jobs, filesystem tasks, and glue scripts that save time.

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Build a Terminal Dashboard That Displays Real-Time System Performance in Python

A Python script that reads Linux system files to display a real-time terminal dashboard with CPU usage, memory usage, and CPU temperature.

linux system-monitoring terminal

Python

import os, time, sys
from collections import deque

def get_cpu_temp():
    try:
        with open("/sys/class/thermal/thermal_zone0/temp") as f:
            return round(int(f.read().strip()) / 1000, 1)
    except:
        return None

def get_mem_usage():
    with open("/proc/meminfo") as f:
        lines = f.readli…

2 0 Open

Automation & scripting hard

Detect Memory Leaks in Python with Weak References

A custom LeakDetector uses weak references and garbage collection to find class instances that survive past expected cleanup in long-running Python applications.

memory leak weakref

Python

import gc
import sys
import weakref
import time
from collections import defaultdict

class LeakDetector:
    def __init__(self):
        self._tracked = defaultdict(list)

    def track_class(self, cls):
        """Track all instances of a class for leak detection."""
        old_init = cls.__init__
        def new_in…

3 0 Open

Automation & scripting medium

How to Detect Applications Consuming Excessive Memory in Python

Use psutil to list the top memory-using processes by RSS and print their names, PIDs, and memory usage in MB.

psutil memory monitoring

Python

import psutil

def find_top_memory_processes(limit=5):
    """Return top `limit` processes by memory usage (RSS)."""
    processes = []

    for proc in psutil.process_iter(['pid', 'name', 'memory_info']):
        try:
            info = proc.info
            mem = info['memory_info'].rss if info['memory_info'] else 0…

2 0 Open

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