ksamuel

#!/usr/bin/env python3.14
"""
Demonstration of Python 3.14's new t-string feature for secure command execution.
This script shows how t-strings help prevent command injection attacks.
"""

import subprocess
import os
import sys
from string.templatelib import Template, Interpolation

ksamuel

#!/usr/bin/env python3.14
# -*- coding: utf-8 -*-

"""
A demonstration of PEP 750's t-strings for safer command execution.

This script defines a `run_command` function that utilizes a custom
t-string tag to safely execute shell commands using the `subprocess` module.
It then contrasts this safe approach with a vulnerable command execution
using `os.system` and regular f-strings to highlight how t-strings

ksamuel

import os
import subprocess

# ✅ SAFE: run a command using t-string and subprocess.run
def run_command(cmd: t-str):
    """Run a shell command safely using t-strings and subprocess.run."""
    print(f"Running securely: {cmd}")
    result = subprocess.run(cmd, capture_output=True, text=True)
    print("Output:", result.stdout.strip())
    if result.stderr:

ksamuel

import json
from pathlib import Path
 
import pytest
from mockito import when, mock

from django.urls import reverse
from django.shortcuts import get_object_or_404

from ninja.testing import TestClient

ksamuel

import pytest
from django.contrib.auth.models import User
from ninja.testing import TestClient
from .models import Product, CartItem, Cart
from .endpoints import api

@pytest.fixture
def user(db): # db fixture assumed from pytest-django
    user = User.objects.create_user(username='testuser', password='testpass')
    Cart.objects.create(user=user)

ksamuel

def test_bluesky_link_calculator():
    assert (
        bsk_calculate_link_size("http://google.com")
        == bsk_calculate_link_size("https://google.com")
        == bsk_calculate_link_size("https://google.com/")
        == bsk_calculate_link_size("https://google.com#")
        == 10
    )

ksamuel

// the HTML Video element
const bgVideo = document.getElementById('bgVideo');

// The canvas element on which we display the animation
const canvas = document.getElementById('spaceCanvas');
const ctx = canvas.getContext('2d');
canvas.width = window.innerWidth;
canvas.height = window.innerHeight;

// I create a second canvas for performance reasons (explained later)

ksamuel

import os
import queue
import re
import time

import mido
import requests

# I don't even remember why it's there. Permission issue I worked 
#  around? Maybe I replaced that with an udev rules?

ksamuel

import sys
import tempfile
import heapq

from array import array


def int_array_from_file(int_file, buffer_size=4000):
    int_array = array("i")

ksamuel

py311.json
==========

Performance version: 1.0.9
Report on Linux-5.15.0-84-generic-x86_64-with-glibc2.31
Number of logical CPUs: 8
Start date: 2023-10-03 15:46:40.037527
End date: 2023-10-03 16:30:51.189955