Reference library

Automation & scripting

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

29 matches

How to Sync Two Directories in Python (rsync-like)

Mirror a source directory into a destination by copying new or changed files and deleting extras, similar to rsync.

import os
import shutil
import sys
from pathlib import Path

def sync_dirs(src: Path, dst: Path):
    """Mirror src into dst: copy new files, overwrite changed, delete extras."""
    dst.mkdir(parents=True, exist_ok=True)
    for dst_entry in dst.rglob('*'):
        rel = dst_entry.relative_to(dst)
        src_entry =…

14 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 medium

How to Validate SSL Certificates for Multiple Domains in Python

A Python utility that checks SSL certificate expiry dates for a list of domains using the standard library ssl and socket modules.

ssl certificate validation

Python

import ssl
import socket
from datetime import datetime

def check_ssl_certificate(hostname: str, port: int = 443) -> dict:
    """Validate SSL certificate for a given hostname."""
    context = ssl.create_default_context()
    with socket.create_connection((hostname, port), timeout=5) as sock:
        with context.wra…

45 0 Open

Automation & scripting medium

How to apply Kubernetes YAML files from a folder in Python

Uses the Kubernetes Python client to apply all YAML manifests in a directory, with sorted processing and per-file error handling.

kubernetes yaml automation

Python

import os
import yaml
from kubernetes import client, config
from kubernetes.utils import create_from_yaml

def apply_yaml_folder(folder_path):
    """Apply all YAML files in a folder using the Kubernetes mock client."""
    # Load mock configuration
    config.load_kube_config()
    k8s_client = client.ApiClient()

  …

12 0 Open

Automation & scripting medium

How to check Python files for common coding mistakes

Walks a directory tree parsing each .py file with ast, reporting empty functions, bare try blocks, too many parameters, and empty classes.

ast linting code-quality

Python

import ast
import os
import sys

def check_file(filepath):
    try:
        with open(filepath) as f:
            code = f.read()
        tree = ast.parse(code, filename=filepath)
    except SyntaxError as e:
        print(f"{filepath}: SyntaxError: {e.msg}")
        return
    
    issues = []
    for node in ast.wal…

43 0 Open

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