Reference library

Automation & scripting

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

4 matches

Find Dead Code in a Python Project Using AST

Walk a project tree, parse every Python file with ast, and list defined functions that are never called anywhere.

import ast
import os
import sys

def find_dead_code(project_path):
    defined_functions = {}
    called_functions = set()

    for root, dirs, files in os.walk(project_path):
        for file in files:
            if file.endswith('.py'):
                filepath = os.path.join(root, file)
                with open(f…

41 0 Open

Automation & scripting medium

Generate Beautiful Project Documentation from Python Source Code Automatically

Automatically generate a markdown summary of function docstrings from any Python source file using the AST module.

ast automation documentation

Python

import ast
import inspect
from pathlib import Path

def extract_docstrings_from_file(filepath):
    """Parse a Python file and collect function docstrings."""
    source = Path(filepath).read_text()
    tree = ast.parse(source)

    docs = []
    for node in ast.walk(tree):
        if isinstance(node, (ast.FunctionDef…

34 0 Open

Automation & scripting medium

How to Scan Open Ports on a Host with Python

A Python function that uses socket.connect_ex to check for open TCP ports on a given host within a range and returns a list of open ports.

socket network port-scanning

Python

import socket

def scan_ports(host, start_port, end_port):
    open_ports = []
    for port in range(start_port, end_port + 1):
        sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        sock.settimeout(0.5)
        result = sock.connect_ex((host, port))
        if result == 0:
            open_ports.app…

42 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…

42 0 Open

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