Reference library

Automation & scripting

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

29 matches
Automation & scripting medium

How to Monitor Website Content Changes in Python

This script fetches a webpage's content, computes its SHA-256 hash, and compares it with the last stored hash to detect and alert on changes.

web scraping monitoring requests
Python
import time
import hashlib
import requests
from pathlib import Path

def fetch_content_hash(url: str) -> str:
    response = requests.get(url, timeout=10)
    response.raise_for_status()
    return hashlib.sha256(response.text.encode()).hexdigest()

def monitor_website(url: str, check_interval: int = 60):
    hash_fil…
49 0 Open
Automation & scripting medium

How to Track GitHub Stars, Forks, and Watchers in Python

Automatically fetch and track stars, forks, and watchers for multiple GitHub repositories, saving snapshots locally as JSON files for historical analysis.

github api automation
Python
import os
import time
import json
import requests
from pathlib import Path
from datetime import datetime

REPOS = [
    "psf/requests",
    "python/cpython",
    "pallets/flask",
]
DATA_DIR = Path("github_metrics")

def fetch_repo_stats(repo):
    url = f"https://api.github.com/repos/{repo}"
    resp = requests.get(ur…
39 0 Open
Automation & scripting easy

Monitor Website Uptime with Python

Periodically check if a website is reachable and its HTTP status is 200, logging the status with timestamps.

monitoring uptime requests
Python
import requests
import time

def check_website(url):
    try:
        response = requests.get(url, timeout=5)
        if response.status_code == 200:
            return True
        else:
            return False
    except requests.ConnectionError:
        return False
    except requests.Timeout:
        return Fals…
39 0 Open
Automation & scripting easy

Rotate API keys in Python by updating an .env template

Replace an old API key with a new one inside an .env template file, with a guard for missing keys.

api-keys env-files automation
Python
import json
from pathlib import Path

def rotate_api_keys(env_template_path: Path, old_key: str, new_key: str) -> None:
    """Replace an old API key with a new one in an .env template file."""
    content = env_template_path.read_text()
    if old_key not in content:
        print(f"Error: '{old_key}' not found in {e…
13 0 Open
Automation & scripting medium

Scrape HTML Tables in Python with html.parser

Extract data from HTML tables using Python's built-in html.parser module, without third-party dependencies, by overriding callback methods to track table, row, and cell states.

html scraping parser
Python
import html.parser
from urllib.request import urlopen


class TableParser(html.parser.HTMLParser):
    def __init__(self):
        super().__init__()
        self.in_table = False
        self.in_row = False
        self.in_cell = False
        self.current_cell = []
        self.rows = []
        self.row = []

    d…
12 0 Open

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